Engine Controls - Tests W/codes - Body Control Computer Dodge Caravan II

DESCRIPTION

The body control computer system consists of a combination of modules that communicate over the Chrysler Collision Detection (CCD) bus system. Through the CCD bus, information related to the operation of vehicle components and circuits is relayed to the appropriate system module(s). Each module receives the same component information. This reduces the complexity of vehicle wiring and size of wiring harness.

The following body control computer systems are covered in this article: electronic instrument cluster, electro/mechanical instrument cluster, automatic door locks, compass/mini-trip module, illuminated entry, headlights, and intermittent wipers. System failures within these systems can be diagnosed via the CCD bus diagnostic connector using Chrysler Diagnostic Readout Box II (DRB-II) tester.

Diagnostic test procedures are designed to detect system faults as quickly as possible. Body and chassis fault codes are accessed through CCD bus diagnostic connector. CCD bus diagnostic connector is located under left side of dash. (Scheme 89) DRB-II tester is used to access information from CCD bus.

Scheme 89

The body control computer, sometimes referred to as body controller, is located under left side of instrument panel. Body control computer stores odometer information for electronic instrument cluster and electro/mechanical instrument cluster display and provides power and ground for a variety of systems. Systems are monitored by body control computer through voltage drops.

CCD BUS

The CCD bus is a twisted pair of wires traveling from module to module receiving and delivering coded information. The code identifies the message and its importance. When multiple messages attempt to access CCD bus at once, code assigns priority ranking. The 2 twisted wires used by the CCD bus system are called Bus "+" and Bus "-". Both wires carry approximately 2.5 volts.

PRETEST INSPECTION

Before diagnosis, following precautions must be followed

1. Vehicle must have a fully charged battery and functional charging system.
2. Always start at «TEST 1A: IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-1a-identifying-vehicle-equipment) . Starting with any other test may result in incorrect results.
3. Only perform test steps indicated. It is NOT necessary to perform all steps in a test.
4. VEHICLE COMMUNICATIONS tests should only be used when instructed to do so by another test. Always start at «TEST 1A: BLANK DRB-II MESSAGE SCREEN»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-1a-blank-drb-ii-message) .
5. Always perform appropriate «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) after repairs are completed.
6. At end of each test step, reconnect all wires and install any components removed for testing.
7. Use extreme care when connecting or disconnecting wiring during testing to prevent accidental grounding or shorting.
8. DO NOT use a test light in place of a voltmeter.
9. Always disconnect DRB-II after use.
10. Always disconnect DRB-II before charging battery.

DIAGNOSTIC PROCEDURE

Note. Before proceeding with diagnosis, certain precautions must be followed. See PRETEST INSPECTION under SELF-DIAGNOSTIC SYSTEM.

Diagnostic test procedures are designed to detect system faults as quickly as possible. Body fault codes are accessed through CCD bus diagnostic connector. (Scheme 89) DRB-II tester is used to access information from CCD bus diagnostic connector. DRB-II tester, jumper wires and volt/ohmmeter will be needed for testing. Proceed to TEST 1A: IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS under SELF-DIAGNOSTIC TESTS. Ensure self-diagnostic tests apply to vehicle being tested. When system problem is identified according to customer complaint, perform indicated diagnostic test.

YES Or Down Arrow & NO Or Up Arrow

Keys will move lines on screen up or down, allowing technician to choose an item or scroll through all selections available.

ATM Key

Key will return technician to previous screen.

ENTER Key

Allows technician to select a test or display. The flashing arrow must be on the display user wishes to select. Pressing the ENTER key in the sensor state will cause display to change from a 3-line display to a 1-line display.

F3 Key

Key is used to display a help screen. This key may be used at any time.

READ/HOLD Key

Key is used to freeze any sensor display.

MODE & ATM Keys

Pressing MODE and ATM keys at same time will cause DRB-II to reset to copyright screen.

ENTERING ON-BOARD DIAGNOSTICS

1. Before entering on-board diagnostics, refer to «PRETEST INSPECTION»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__pretest-inspection). Turn ignition off. Attach appropriate cartridge to DRB-II. Connect DRB-II to CCD bus diagnostic connector. (Scheme 89)
2. Turn all accessories off. Turn ignition on. All character positions will glow and copyright information will appear on DRB-II screen for a few seconds. Display will then change to DRB-II menu.
3. If DRB-II displays an error message or screen is blank, refer to «SELF-DIAGNOSTIC TESTS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer). Always start at TEST 1A: BLANK DRB-II MESSAGE SCREEN.
4. Following DRB-II modes are accessible from DRB-II menu: VEHICLES TESTED, HOW TO USE, CONFIGURE and SELECT SYSTEM.

VEHICLES TESTED Mode

At DRB-II menu, press "1" (VEHICLES TESTED) key. Press ENTER key. At VEHICLES TESTED, DRB-II will display vehicles supported by cartridge used. This screen will display for 5 seconds and return to DRB-II menu. To return to menu sooner, press ATM key.

HOW TO USE Mode

At DRB-II menu, press "2" (HOW TO USE) key. Press ENTER key. DRB-II will display instructions for use of DRB-II for cartridge being used.

CONFIGURE Mode

At DRB-II menu, press "3" (CONFIGURE) key. Press ENTER key. At CONFIGURE menu, technician can customize DRB-II display. For example, if metric system is more useful, select METRIC from appropriate menu. All selections made under CONFIGURE option remain active until user changes selection.

SELECT SYSTEM Mode

1. This mode enables the technician to select system to be diagnosed. At DRB-II menu, press "4" (SELECT SYSTEM) key. Press ENTER key. DRB-II will display SELECT SYSTEM menu.
2. At SELECT SYSTEM menu, press "3" (BODY) key. Press ENTER key. DRB-II should display BUS TEST IN PROGRESS and BUS OPERATIONAL. After a few seconds, display should change to BODY STYLE menu.
3. If a bus failure message appears during BUS TEST IN PROGRESS, proceed to SELF-DIAGNOSTIC TESTS. Always start at TEST 1A: BLANK DRB-II MESSAGE SCREEN. At BODY STYLE menu, select appropriate body style for vehicle being worked on. DRB-II will display SELECT MODULE MENU.

SELECT MODULE Menu

Menu will display body control systems available for technician to diagnose. Select appropriate body system to be tested. DRB-II will then display a menu for specific system being tested. Following functions are accessible from each system menu

1. System Tests This function allows technician to determine whether Single Board Engine Controller (SBEC) is active over CCD bus.
2. Read Faults This functions allows technician to read faults. If no faults exist, NO FAULTS DETECTED will be displayed. If faults exist, DRB-II will display number of faults, fault code and message.
3. State Display This functions allows technician to read states or values of a variety of sensors, inputs/outputs and components.
4. Actuator Tests This function allows technician to activate various outputs, motors and relays to test their operation.
5. Adjustments This function allows the technician to change vehicle theft alarm system mode from disarmed to armed, or to put alarm system in self-diagnostics mode. Adjustments function is not available for testing of other body control modules.

DRB-II Volt-Ohmmeter Mode

1. To access volt-ohmmeter mode of DRB-II, connect Red volt-ohmmeter test lead to Red port, located on right top side of DRB-II. NOTE: Because DRB-II is grounded through engine diagnostic connector, only one volt-ohmmeter test lead is required when using volt-ohmmeter option. DRB-II volt-ohmmeter should only be used when self-diagnostic tests require this option.
2. To access voltmeter, press VOLT/OHM key once. DRB-II is now in voltmeter mode. Touch test probe to connector or wire to be measured. Read voltage on DRB-II display. When voltage testing is complete, press VOLT/OHM key 3 times to exit voltmeter mode.
3. To access ohmmeter, press VOLT/OHM key twice. DRB-II is now in ohmmeter mode. Touch test probe to connector or wire to be measured. Read resistance to circuit ground on DRB-II display. When resistance testing is complete, press VOLT/OHM key twice to exit ohmmeter mode.

DRB-II Continuity Meter Mode

Press VOLT/OHM key 3 times. Display will read NO CONTINUITY. Touch test probe to connector or wire to be measured. Read continuity on DRB-II display. When continuity testing is complete, press VOLT/OHM key once to exit continuity meter mode.

ELECTRONIC INSTRUMENT CLUSTER (EIC) ACTUATOR TESTS

After ACTUATOR TESTS is selected from ELEC CLUSTER menu, display will change to ACTUATOR TEST and tests available for technician to diagnose. Select appropriate test. DRB-II will then display a menu for specific test and ACTUATING/COMPLETED. To determine whether or not any of these tests pass or fail, observe EIC display as test is being actuated. Following tests can be accessed from menu

1. INTERNAL CHECK This tests the internal functions of EIC. This test also displays any fault codes present.
2. ALL SEGMENTS ON This test turns on all segments of EIC and then turns them off. If all segments do not glow and then turn off, test is failed.
3. SEQUENTIAL SEGMENTS TEST This test illuminates all vacuum fluorescent bars on all gauges in EIC and then turns them off. If any bar fails to glow, test is failed.
4. SEQUENTIAL LEGENDS TEST This test illuminates all legends in EIC individually and then turns them off. If any legend fails to glow or if 2 legends are illuminated together, test is failed.
5. SEQUENTIAL LAMP TEST This test illuminates following lights in EIC display individually and then turns them off: WASHER FLUID, DOOR/DECK, CHECK ENGINE, SEAT BELT, BRAKE and CHECK GAGES. If any light does not glow and then turn off, test is failed.

DRB-II PROBLEMS & ERROR MESSAGES

If a problem exists with the operation of DRB-II, DRB-II displays a blank screen, CCD bus failure message or NO RESPONSE, RAM TEST FAILURE, CARTRIDGE ERROR, KEYPAD TEST FAILURE, HIGH BATTERY or LOW BATTERY error message appears, refer to SELF-DIAGNOSTIC TESTS. Always start at TEST 1A: BLANK DRB-II MESSAGE SCREEN.

CONNECTOR IDENTIFICATION

CONNECTOR IDENTIFICATION DIRECTORY

Scheme 90

Scheme 91

Scheme 92

Scheme 93

Scheme 94

Scheme 95

Scheme 96

Scheme 97

Scheme 98

Scheme 99

Scheme 100

Scheme 101

Scheme 102

Scheme 103

Scheme 104

Scheme 105

TEST 1A - Identifying Vehicle Equipment & System Problems

1. Connect DRB-II to Chrysler Collision Detection (CCD) bus connector. Turn ignition switch to ON position. Using DRB-II, select BODY SYSTEM. If DRB-II does not display BUS OPERATIONAL, refer to BODY VEHICLE COMMUNICATIONS tests. If DRB-II displays BUS OPERATIONAL, go to next step.
2. Using DRB-II, select BODY COMPUTER MODULE. If DRB-II displays NO RESPONSE, refer to VEHICLE COMMUNICATIONS tests. If DRB-II does not display NO RESPONSE, using DRB-II, select ELECTRONIC CLUSTER MODULE (if equipped). If DRB-II does not display BUS OPERATIONAL, refer to VEHICLE COMMUNICATIONS tests.
3. If DRB-II displays BUS OPERATIONAL, select MECHANICAL INSTRUMENT CLUSTER MODULE (if equipped) using DRB-II. If DRB-II displays NO RESPONSE, refer to VEHICLE COMMUNICATIONS tests. If DRB-II does not display NO RESPONSE, select COMPASS/MINI-TRIP MODULE (if equipped) using DRB-II.
4. If DRB-II displays NO RESPONSE, refer to VEHICLE COMMUNICATIONS tests. If DRB-II does not display NO RESPONSE, refer to «DIAGNOSTIC TEST DIRECTORY»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer) table for specific diagnosis. DIAGNOSTIC TEST DIRECTORY Problem Perform Test No. Diagnosing Auto Door Locks «2A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-2a-diagnosing-auto-door) Identifying Chime Problem «5A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-5a-identifying-chime-problem) Diagnosing Compass/Mini-Trip Module Faults «6A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-6a-diagnosing-compassmini-trip-module) Diagnosing Courtesy Light System Faults «10A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-10a-diagnosing-left-pod) Electronic Instrument Cluster Diagnostics «22A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-22a-electronic-instrument-cluster) Electro/Mechanical Instrument Cluster Diagnostics «29A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-29a-electromechanical-instrument-cluster) Headlights Will Not Turn Off «37A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-37a-headlights-will-not) Headlight Time Delay Inoperative «37B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-37b-headlight-time-delay) Diagnosing Illuminated Entry System Faults «38A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-38a-diagnosing-ground-supply) Diagnosing Intermittent Wiper System Faults «41A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-41a-identifying-intermittent-wiper) Diagnosing Key-In Light Circuit «44A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-44a-diagnosing-key-in-light) Diagnosing Liftgate Release «45A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-45a-diagnosing-liftgate-release) Diagnosing Seat Belt Warning Light Circuit «47A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-47a-diagnosing-seat-belt)

TEST 2A - Diagnosing Auto Door Locks

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Check if problem is with side door memory lock only. If problem is with side door memory lock only, perform «TEST 3A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-3a-diagnosing-for-side) . If problem is other than side door memory lock, go to next step. NOTE: Ensure left front door is open and key is removed from ignition switch.
2. Depress power door lock switch to LOCK position. If doors lock, perform «TEST 4A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-4a-identifying-door-ajar) . If doors do not lock, turn ignition switch to ON position. Using DRB-II, actuate auto door lock test. If doors lock, perform «TEST 2B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-2b-diagnosing-lock-input) . If doors do not lock, gain access to body controller. Body controller is located under left side of instrument panel.
3. Place DRB-II in voltmeter mode. With actuation test still running, backprobe terminal No. 21 (Orange/White wire) of body controller Blue connector. If voltage pulsates between zero and more than 10 volts, perform TEST 2C. If voltage does not pulsate between zero and more than 10 volts, using DRB-II, stop auto door lock test.
4. Turn ignition switch to OFF position. Remove lock relay from relay center. Disconnect body controller Blue connector. Check connector, and clean or repair connector as necessary. Place DRB-II in ohmmeter mode. Probe terminal No. 21 (Orange/White wire) of body controller Blue connector. If resistance is less than 5 ohms, repair short to ground in Orange/White wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If resistance is more than 5 ohms, place DRB-II in voltmeter mode. Turn ignition switch to ON position. Probe terminal No. 8 (Pink wire) of body controller Blue connector. If voltage is more than 10 volts, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is less than 10 volts, remove and inspect fuse No. 3. If fuse is blown, perform TEST 10C.
6. If fuse is okay, probe Black/Red wire (in fuse block) to fuse No. 3. If voltage is less than 10 volts, repair Black/Red wire as necessary. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is more than 10 volts, repair open Pink wire between fuse block and body controller connector. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 2B - Diagnosing Lock Input To Body Controller

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Using DRB-II stop auto door lock test. Open left front door. Remove key from ignition switch. Using DRB-II, read key in ignition status. If DRB-II displays CIRCUIT CLOSED, perform «TEST 5B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-5b-diagnosing-key-in) . If DRB-II does not display CIRCUIT CLOSED, place DRB-II in voltmeter mode. Disconnect body controller Blue connector. Check connector, and clean or repair connector as necessary.
2. Probe terminal No. 4 (Orange/Violet wire) of body controller Blue connector. While watching DRB-II, lock doors using left door lock switch. If voltage is more than 10 volts, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is less than 10 volts, repair Orange/Violet wire as necessary. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 2C - Diagnosing For Open Auto Door Locks Circuit

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Ensure auto door lock test is actuated and DRB-II is in voltmeter mode. Gain access to door lock relay. Relay is located left of fuse block. Backprobe terminal No. 9 (Orange/White wire) at door lock relay. If voltage pulsates between zero and more than 10 volts, repair open Orange/White. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If voltage does not pulsate between zero and more than 10 volts, backprobe terminal No. 6 (Orange/Black wire) at door lock relay. If voltage pulsates between zero and more than 10 volts, go to next step. If voltage does not pulsate between zero and more than 10 volts, go to step 5).
3. Backprobe terminal No. 11 (Pink/Black wire) at door unlock relay. If voltage pulsates between zero and above 10 volts, repair open in Pink/Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage does not pulsate between zero and above 10 volts, using DRB-II, stop auto door lock test.
4. Turn ignition switch to OFF position. Put DRB-II in ohmmeter mode. Remove door lock and unlock relays. Probe terminal No. 13 (Black wire) at door unlock relay connector. If resistance is more than 5 ohms, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, replace door unlock relay. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If voltage does not pulsate between zero and more than 10 volts in step 2), stop auto door lock actuation test using DRB-II. Backprobe terminal No. 10 (Red wire) at door lock relay. If voltage less than 10 volts, repair Red wire as necessary. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is more than 10 volts, turn ignition switch to OFF position. Place DRB-II in ohmmeter mode. Remove lock, and unlock relays.
6. Probe terminal No. 7 (Black wire) at door lock relay connector. If resistance is more than 5 ohms, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, probe terminal No. 6 (Orange/Black wire) at door lock relay connector.
7. If resistance is more than 5 ohms, replace lock relay. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, repair short to ground in Orange/Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 3A - Diagnosing For Side Door Memory Lock

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Ensure all doors are closed. Using DRB-II, read side door ajar switch status. If DRB-II does not display CIRCUIT CLOSED, go to step 4). If DRB-II displays CIRCUIT CLOSED, disconnect side door ajar switch. If DRB-II does not display CIRCUIT CLOSED, replace door ajar switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If DRB-II displays CIRCUIT CLOSED, turn ignition switch to OFF position. Disconnect body controller Natural connector. Check connector, and clean or repair connector as necessary. Place DRB-II in ohmmeter mode. Probe terminal No. 14 (Tan/Yellow wire) of body controller Natural connector.
3. If resistance is more than 5 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, repair short to ground in Tan/Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If DRB-II does not display CIRCUIT CLOSED In step 1), lock doors using left door lock switch. If side door does not lock, repair or replace side door motor and/or wiring. If side door locks, open side door. Using DRB-II, read side door ajar switch status. If DRB-II displays CIRCUIT CLOSED, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If DRB-II does not display CIRCUIT CLOSED, disconnect side door ajar switch. Connect a jumper wire between Tan/Yellow and Black wires of side door switch connector. If DRB-II displays CIRCUIT CLOSED, replace side door ajar switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, disconnect jumper wire.
6. Connect a jumper wire between Tan/Yellow wire of side door switch connector and ground. If DRB-II displays CIRCUIT CLOSED, repair open in Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, access body controller. Body controller is located under left side of instrument panel.
7. Connect a jumper wire between terminal No. 14 (Tan/Yellow wire) at wiring harness side of body controller Natural connector and ground. If DRB-II displays CIRCUIT CLOSED, repair open Tan/Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 4A - Identifying Door Ajar Faults

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Close all doors. Using DRB-II, read left front door ajar switch status. If DRB-II displays CIRCUIT CLOSED, perform «TEST 18A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-18a-diagnosing-door-ajar) . If DRB-II does not display CIRCUIT CLOSED, using DRB-II, read right front door ajar switch status.
2. If DRB-II displays CIRCUIT CLOSED, perform «TEST 19A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-19a-diagnosing-door-ajar) . If DRB-II does not display CIRCUIT CLOSED, read side door ajar switch status using DRB-II. If DRB-II displays CIRCUIT CLOSED, perform «TEST 20A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-20a-diagnosing-door-ajar) . If DRB-II does not display CIRCUIT CLOSED, using DRB-II, read left front door ajar switch status.
3. If DRB-II displays CIRCUIT CLOSED, perform «TEST 44C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-44c-diagnosing-door-jamb) . If DRB-II does not display CIRCUIT CLOSED, system is operating properly. Recheck customer complaint.

TEST 5A - Identifying Chime Problem

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Close all doors. If a speedometer problem exists, perform «TEST 24A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-24a-electronic-instrument-cluster) for Electronic Cluster or TEST 30A for Electro/Mechanical Cluster. If no speedometer problem exists, turn ignition switch to ON position. Using DRB-II actuate chime test.
2. If chime does not sound, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If chime sounds, stop chime test using DRB-II. Open left front door. Turn ignition switch to OFF position, remove key from ignition switch and then wait 30 seconds. Using DRB-II, read key-in-ignition switch status.
3. If DRB-II displays NO RESPONSE, perform «TEST 44C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-44c-diagnosing-door-jamb) . If DRB-II displays CIRCUIT CLOSED, perform TEST 5B. If DRB-II does not display NO RESPONSE or CIRCUIT CLOSED, place key in ignition switch. If chime does not sound, perform «TEST 5B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-5b-diagnosing-key-in) . If chime sounds, turn ignition switch to ON position.
4. Check turn signals for proper operation. If turn signals do not operate properly, repair turn signal circuit as necessary. If turn signals operate properly, turn left signal on. Using DRB-II, read left turn signal status. If DRB-II does not display OPEN and then CLOSE, perform TEST 5C.
5. If DRB-II displays OPEN and then CLOSE, turn right turn signal on. Using DRB-II, read right turn signal status. If DRB-II does not display OPEN and then CLOSE, perform TEST 5D. If DRB-II displays OPEN and then CLOSE, perform TEST 28A.

TEST 5B - Diagnosing Key In Ignition Circuit

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Scheme 106

1. Turn ignition switch to ON position. Using DRB-II, read key-in-ignition switch status. If DRB-II displays CIRCUIT CLOSED, go to step 5). If DRB-II does not display CIRCUIT CLOSED, turn ignition switch to OFF position. Disconnect key-in-ignition connector. (Scheme 106) Check connector, and clean or repair connector as necessary. (Scheme 106): Locating Ignition Key Light & Key-In-Ignition Connector
2. Connect a jumper wire between terminals No. 1 (Light Blue wire) and No. 2 (Black wires) of key-in-ignition connector. Ensure driver's door is open. If DRB-II displays CIRCUIT CLOSED, replace key in ignition switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If DRB-II does not display CIRCUIT CLOSED, disconnect jumper wire.
3. Connect a jumper wire between terminal No. 2 (Light Blue wire) and ground. If DRB-II displays CIRCUIT CLOSED, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If DRB-II does not display CIRCUIT CLOSED, disconnect jumper wire. Access body controller. Body controller is located under left side of instrument panel.
4. Connect jumper wire between terminal No. 2 (Light Blue wire) at wiring harness side of body controller Blue connector and ground. If DRB-II displays CIRCUIT CLOSED, repair open Light Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If DRB-II does not display CIRCUIT CLOSED, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).
5. If DRB-II displays CIRCUIT CLOSED in step 1), ensure left front door is open. remove key from ignition switch. If DRB-II displays CIRCUIT OPEN, retest system. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If DRB-II does not display CIRCUIT OPEN, disconnect key-in-ignition connector. (Scheme 106) Check connector, and clean or repair connector as necessary.
6. If DRB-II does not display CIRCUIT CLOSED, replace key in ignition switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If DRB-II displays CIRCUIT CLOSED, disconnect body controller Blue connector. Check connector, and clean or repair connector as necessary.
7. Place DRB-II in ohmmeter mode. Probe terminal No. 2 (Light Blue wire) of body controller Blue connector. If resistance is less than 5 ohms, repair short to ground in Light Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is more than 5 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).

TEST 5C - Diagnosing Turn Signal Input To Body Controller For Chime Function

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Turn left turn signal on.
2. Put DRB-II in voltmeter mode. Probe terminal No. 15 (Light Green wire) of body controller Blue connector. If voltage pulsates between zero and more than 10 volts, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage does not pulsate between zero and more than 10 volts, repair open Light Green wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 5D - Diagnosing Turn Signal Input To Body Controller For Chime Function

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Disconnect body controller Natural connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Turn right turn signal on.
2. Place DRB-II in voltmeter mode. Probe terminal No. 7 (Tan wire) of body controller Natural connector. If voltage pulsates between zero and more than 10 volts, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage does not pulsate between zero and more than 10 volts, repair open Tan wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 6A - Diagnosing Compass/Mini-Trip Module Faults

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to ON position. If compass/mini-trip screen is blank, perform TEST 6B. If compass/mini-trip screen displays "OC" or "SC", perform TEST 7A. If compass/mini-trip screen does not display "OC" or "SC", actuate field strength test using DRB-II. NOTE: On compass/mini-trip screen, number 8 normally follows a letter; however, a reading can be 0-15.
2. If compass/mini-trip screen does not display "N8," "W8" and then "D1," replace compass/mini-trip module. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If compass/mini-trip screen displays "N8," "W8" and then "D1," actuate internal test using DRB-II.
3. If compass/mini-trip screen does not display a blank screen and then "2", replace compass/mini-trip module. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If compass/mini-trip screen displays a blank screen and then "D2," actuate "VF" display test using DRB-II.
4. All compass/mini-trip screen segments should light and then "D3" should be displayed. If compass/mini-trip does not function as specified, replace compass/mini-trip module. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If all compass/mini-trip screen segments light and then "D3" is displayed, read compass/mini-trip faults using DRB-II.
5. If any fault messages exist, replace compass/mini-trip module. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If no fault messages exist, check for a compass/mini-trip illumination problem. If a problem exists, perform TEST 28A. If a problem with compass/mini-trip illumination does not exist, check if ECO (average MPG) is inoperative or wrong. If a problem exists with ECO (average MPG), perform TEST 8A.
6. If no problems exist with ECO (average MPG), check if ECO (MPG) is inoperative or wrong. If a problem exists with ECO (MPG), perform TEST 8A. If no problems exist with ECO (MPG), check if "ET" (elapsed time) is inoperative. If a problem exists with "ET," perform TEST 9A. If no problems exist with "ET", check if trip odometer is inoperative or wrong.
7. If a problem exists with trip odometer, replace compass/mini-trip module. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If no problems exist with trip odometer, perform TEST 36A. TEST 36A is for inoperative or inaccurate DTE (distance to empty) only.

TEST 6B - Diagnosing Blank Screen Compass/Mini-Trip Module

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Press step button one time. If compass/mini-trip screen is not blank, restart «TEST 6A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-6a-diagnosing-compassmini-trip-module) . If compass/mini-trip screen is still blank, gain access to compass/mini-trip module connector. Place DRB-II in voltmeter mode. Backprobe terminal No. 7 (Tan wire) of compass/mini-trip module connector.
2. If voltage is less than 10 volts, go to step 4). If voltage is more than 10 volts, turn ignition switch to OFF position. Disconnect compass/mini-trip module connector. Check connector, and clean or repair connector as necessary. Put DRB-II in ohmmeter mode.
3. Probe terminal No. 5 (Black/Light Green wire) of compass/mini-trip module connector. If resistance is more than 5 ohms, repair open Black/Light Green wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, perform «TEST 6C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-6c-diagnosing-blank-screenbuttons) .
4. If voltage is less than 10 volts in step 2), remove circuit breaker No. 25 from fuse panel. Probe Black/White wire (in fuse block) to circuit breaker No. 25. If voltage is more than 10 volts, go to step 7). If voltage is less than 10 volts, access ignition switch.
5. Backprobe terminal No. 6 (Black/White wire) at ignition switch connector. If voltage is more than 10 volts, repair open in Black/White wire between ignition switch and fuse block. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is less than 10 volts, backprobe terminal No. 7 (Red wire) at ignition switch connector.
6. If voltage is more than 10 volts, replace ignition switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is less than 10 volts, repair open Red wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
7. If voltage is more than 10 volts in step 2), place DRB-II in ohmmeter mode. Probe Tan wire (in fuse block) to No. 25 circuit breaker. If resistance is less than 5 ohms, repair short to ground in Tan wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, replace circuit breaker. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 6C - Diagnosing Blank Screen/Buttons On Compass/Mini-Trip Module

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Scheme 107

1. Reconnect compass/mini-trip module. Turn ignition switch to ON position. Disconnect compass/mini-trip module 5-pin connector. (Scheme 107) Check connector, and clean or repair connector as necessary. Momentarily connect a jumper wire between terminals No. 1 and 2.
2. If compass/mini-trip screen is still blank, replace compass/mini-trip module. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If compass/mini-trip screen is not blank, replace step US/M button assembly. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). (Scheme 107): Compass/Mini-Trip Module 5-Pin Connector Terminal Location & ID

TEST 7A - Diagnosing External Temperature Sensor

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Scheme 108

1. If compass/mini-trip screen displays "OC", go to step 5). If compass/mini-trip screen does not display "OC", turn ignition switch to OFF position. Disconnect external temperature sensor. (Scheme 108) Check connector, and clean or repair connector as necessary. Turn ignition switch to ON position. If compass/mini-trip screen displays "OC", replace external temperature sensor. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). (Scheme 108): Locating External Temperature Sensor
2. If compass/mini-trip screen does not display "OC", remove compass/mini-trip module. Check connector, and clean or repair connector as necessary. Turn ignition switch to OFF position. Put DRB-II in ohmmeter mode. Probe terminal No. 9 (Violet/Light Green wire) of compass/mini-trip module connector.
3. If resistance is less than 5 ohms, repair short to ground in Violet/Light Green wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is more than 5 ohms, using a external ohmmeter, check resistance between terminals No. 9 (Violet/Light Green wire) and No. 10 (Black/Light Blue wire).
4. If resistance is less than 5 ohms, repair Violet/Light Green for a short to Black/Light Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is more than 5 ohms, replace compass/mini-trip module. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).
5. If compass/mini-trip screen displays "OC" in step 1), turn ignition switch to OFF position. Disconnect external temperature sensor. Check connector, and clean or repair connector as necessary. Connect a jumper wire between Violet/Light Green and Black Light Blue wires of external temperature sensor connector. Turn ignition switch to ON position.
6. If compass/mini-trip screen displays "SC", replace external temperature sensor. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If compass/mini-trip screen does not display "SC", turn ignition switch to OFF position. Connect a jumper wire between Violet/Light Green and Black/Light Blue wires of external temperature sensor connector and ground.
7. Disconnect compass/mini-trip module. Check connector condition and clean or repair connector as necessary. Put DRB-II in ohmmeter mode. Probe terminal No. 9 (Violet/Light Green wire) of compass/mini-trip module connector. If resistance is more than 5 ohms, repair open Violet/Light Green wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).
8. If resistance is less than 5 ohms, with jumper wire is still connected, probe terminal No. 10 (Black/Light Blue wire) of compass/mini-trip module connector. If resistance is more than 5 ohms, repair open Black/Light Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is less than 5 ohms, replace compass/mini-trip module. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).

TEST 8A - Diagnosing ECO (MPG) Function-Compass/Mini-Trip

Module

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Ensure no speed sensor faults are present before proceeding. See appropriate G - TESTS W/ CODES article in the ENGINE PERFORMANCE Section. If no speed sensor faults are present, turn ignition switch to ON position. Using DRB-II, read engine controller status.
2. If DRB-II does not display ACTIVE ON BUS, refer to VEHICLE COMMUNICATIONS tests. If DRB-II displays ACTIVE ON BUS, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 9A - Diagnosing Estimated Time (ET) Function-Compass/Mini-Trip Module

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Turn ignition switch to ON position. Put DRB-II in voltmeter mode.
2. Probe terminal No. 6 (Dark Blue/White wire) of body controller Blue connector. If voltage is more than 10 volts, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is less than 10 volts, repair open Dark Blue/White wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 10A - Diagnosing Left Pod Switch & Power Supply

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. All except liftgate lights operate by front doors and pod switch. Forward rear dome and overhead lights (if equipped) operate by side door. Liftgate and rear dome lights (if equipped) operate by opening liftgate.

Scheme 109

1. While observing all courtesy lights, open and close every door. If any light is on when it is supposed to be off, replace diode assembly. Diode assembly is located behind trim panel at left rear quarterpanel. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).
2. When opening doors, if all lights function as properly, move dimmer control lever to center position. Close all doors. If a problem exists with rear dome light or liftgate lights only, perform «TEST 16A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-16a-repairing-faulty-rear). If a problem with rear dome light or liftgate lights only does not exist, turn courtesy lights on by opening left front door.
3. Observe all courtesy lights except liftgate and rear dome lights. If there is only one inoperative bulb, perform «TEST 10B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-10b-checking-power). If all bulbs function properly, turn ignition switch to ON position. Close all doors. If any courtesy lights stay on, perform «TEST 11A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-11a-checking-body-controller).
4. If no courtesy lights stay on, actuate courtesy lights test using DRB-II. Observe all courtesy lights during this test. If any courtesy lights are on, perform «TEST 12A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-12a-checking-left-front). If no courtesy lights are on, using DRB-II, stop courtesy lights test.
5. Remove and inspect fuse No. 3 in fuse block. If fuse is blown, perform «TEST 10C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-10c-checking-wiring). If fuse is okay, reinstall fuse. Put DRB-II in voltmeter mode. Probe Black/Red wire (in fuse block) to fuse No. 3. Repair open Black/Red wire if voltage is less than 10 volts. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).
6. If voltage is more than 10 volts, access left pod switch assembly. (Scheme 109) Disconnect left pod switch Black connector. Check connector, and clean or repair connector as necessary. NOTE: Ensure fuse No. 3 is installed.
7. Place DRB-II in voltmeter mode. Probe terminal No. 4 (Pink wire) of left pod switch Black connector. If voltage is less than 10 volts, repair open Pink wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If voltage is more than 10 volts, probe terminal No. 5 (Pink/Light Blue wire) of left pod switch Black connector.
8. If voltage is less than 10 volts, replace left pod switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If voltage is more than 10 volts, repair open Pink/Light Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). (Scheme 109): Locating Pod Switch Assemblies

TEST 10B - Checking Power & Ground Supply

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Remove inoperative bulb. If bulb is open, replace bulb. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If bulb is okay, disconnect inoperative light assembly. Turn ignition switch to OFF position. Place DRB-II in ohmmeter mode. Probe Yellow wire in inoperative light assembly.
2. If resistance is less than 5 ohms, repair open in Pink/Light Blue wire between inoperative light assembly and left pod switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms and inoperative light is not front dome light assembly, repair open in ground wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
3. If resistance is more than 5 ohms and inoperative light is front dome light assembly, reconnect inoperative light assembly. Reinstall inoperative bulb. Access diode assembly. Diode assembly is located behind trim panel at left rear quarterpanel.
4. Connect a jumper wire between Yellow wire of diode assembly connector and ground. Check front dome light. If front dome light is off, repair open Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If front dome light Is on, replace diode assembly. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 10C - Checking Wiring & Body Controller For Shorts

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. Ensure all doors are closed. Ensure vanity mirror, glove box and under seat lights are off.

1. Turn ignition switch to OFF position. Remove and inspect fuse No. 3. If fuse blown, replace fuse. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If fuse is okay, disconnect left pod switch assembly connectors. (Scheme 109) Check connector, and clean or repair connector as necessary.
2. Probe Pink wire (in fuse block) to fuse No. 3. Go to step 4) if resistance is less than 5 ohms. If resistance is more than 5 ohms, probe terminal No. 5 (Pink/Light Blue wire) of left pod switch Black connector.
3. If resistance is less than 5 ohms, repair short to ground in Pink/Light Blue wire and replace fuse No. 3. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is more than 5 ohms, replace left pod switch and fuse No. 3. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).
4. If resistance is less than 5 ohms in step 2), disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Probe Pink wire (in fuse block) to fuse No. 3.
5. If resistance is more than 5 ohms, replace body controller and fuse No. 3. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is less than 5 ohms, disconnect instrument cluster connector. Check connector condition and clean or repair connector as necessary. Probe Pink wire (in fuse block) to fuse No. 3.
6. If resistance is more than 5 ohms, repair or replace instrument cluster, and replace fuse No. 3. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is less than 5 ohms, disconnect radio connector. Probe Pink wire (in fuse block) to fuse No. 3.
7. If resistance is more than 5 ohms, replace radio and fuse No. 3. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is less than 5 ohms, repair short to ground in Pink wire, and replace fuse No. 3. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).

TEST 11A - Checking Body Controller & Wiring For Shorts To Ground

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
2. If courtesy lights are off, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If courtesy lights are on, disconnect left pod switch assembly. (Scheme 109) Check connector, and clean or repair connector as necessary.
3. Connect a jumper wire between terminals No. 4 (Pink wire) and No. 5 (Pink/Light Blue wire) of left pod switch assembly connector. If courtesy lights are off, replace left pod switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If courtesy lights are on, repair short to ground in Yellow/Dark Green wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).

TEST 12A - Checking Left Front Door Jamb Switch & Related Wiring For Open

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Using DRB-II, stop courtesy lights test. If all courtesy lights did not come on while test was running, perform TEST 12B. If all courtesy lights were on while test was running, open left front door. NOTE: All except liftgate lights should operate by left front door
2. If courtesy lights are on, perform «TEST 13A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-13a-checking-right-front) . If courtesy lights are off, disconnect left front door jamb switch connector. Check connector, and clean or repair connector as necessary. Connect a jumper wire between Yellow and Black wires of left front door jamb switch connector.
3. If courtesy lights are on, replace left front door jamb switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If courtesy lights are off, disconnect jumper wire. Connect a jumper wire between Yellow wire of left front door switch connector and ground.
4. If courtesy lights are on, repair Black wire for an open to ground. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If courtesy lights are off, repair open in Yellow wire to left front door jamb switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 12B - Checking Ground Supply & Diode Assembly For Open

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Disconnect diode assembly connector. Diode assembly is located behind trim panel at left rear quarterpanel. Check connector, and clean or repair connector as necessary. Ensure all doors are closed. Connect a jumper wire between terminal No. 1 (Yellow/Dark Green wire) of diode assembly connector and ground.
2. If right and left front door courtesy lights are off, repair open Yellow/Dark Green wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If right and left front door courtesy lights are on, disconnect jumper wire. NOTE: Continue with this test only if a problem exists with rear overhead lights.
3. Connect a jumper wire between terminal No. 3 (Yellow wire) of diode assembly connector and ground. Check rear overhead lights. If rear overhead lights are off, repair open Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If rear overhead lights are on, replace diode assembly. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 13A - Checking Right Front Door Jamb Switch & Related Wiring For Open

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. All except liftgate lights should operate from right front door.

1. Close left front door. Open right front door. If courtesy lights are on, perform «TEST 14A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-14a-checking-side-door) . If courtesy lights are off, disconnect right front door jamb switch connector. Check connector condition and clean or repair connector as necessary. Connect a jumper wire between Yellow and Black wires of right front door jamb switch connector.
2. If courtesy lights are on, replace right front door jamb switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If courtesy lights are off, disconnect jumper wire. Connect a jumper wire between Yellow wire of right front door jamb switch connector and ground.
3. If courtesy lights are on, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If courtesy lights are off, repair open Yellow wire to right front door jamb switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 14A - Checking Side Door Jamb Switch & Related Wiring For Open

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. Front rear dome and overhead lights (if equipped) operate by side door.

1. Close right front door. Open side door. If courtesy lights are on, perform «TEST 15A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-15a-checking-left-pod) . If courtesy lights are off, disconnect side door jamb switch connector. Check connector, and clean or repair connector as necessary.
2. Connect a jumper wire between Yellow wire of side door jamb switch connector and ground. All courtesy lights should be on except front door and liftgate lights. If courtesy lights are off, repair open Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If courtesy lights are on, replace side door jamb switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 15A - Checking Left Pod Switch For Open

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. This test is only for inoperative courtesy lights controlled by left pod switch.

1. Close side door. Turn courtesy lights on by sliding left pod switch. If courtesy lights are on, system is operational. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If courtesy lights are off, disconnect left pod switch assembly Black connector. Check connector condition and clean or repair connector as necessary.
2. Put DRB-II in ohmmeter mode. Probe terminal No. 6 (Black wire) of left pod switch Black connector. If resistance is more than 5 ohms, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, connect a jumper wire between terminals No. 2 (Yellow wire) and No. 6 (Black wire) of left pod switch Black connector.
3. Also connect a jumper wire between terminals No. 4 (Pink wire) and No. 5 (Pink/Light Blue wire) of left pod switch Black connector. If courtesy lights are on, replace left pod switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If courtesy lights are off, repair open Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 16A - Repairing Faulty Rear Dome & Liftgate Lamps

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Ensure liftgate is closed. If vehicle is not equipped with liftgate lights, perform «TEST 17A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-17a-checking-diode-assembly) . If vehicle is equipped with liftgate lights, check rear dome light. NOTE: Liftgate lights are supposed to come on only by opening liftgate.
2. If rear dome light is the only light staying on, repair short to ground in Yellow/Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If both liftgate lights and rear dome light are staying on, perform «TEST 16B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-16b-checking-liftgate-latch) . If both liftgate lights and rear dome light are not staying on, open liftgate.
3. Observe liftgate lights and rear dome light. If both liftgate lights and rear dome light are on, system is operational. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If both liftgate lights are off, perform «TEST 16C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-16c-checking-liftgate-latch) . If both liftgate lights are on, place DRB-II in ohmmeter mode.
4. Disconnect diode assembly. Diode assembly is located behind trim panel at left rear quarter panel. Check connector condition and clean or repair connector as necessary. Probe terminal No. 4 (Yellow/Red wire) of diode assembly connector. If resistance is more than 5 ohms, repair open Yellow/Red wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If resistance is less than 5 ohms, connect a jumper wire between terminal No. 2 (Yellow/Black) of diode assembly connector and ground. If rear dome light is on, replace diode assembly. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If rear dome light is off, access rear dome light assembly.
6. Inspect bulb. If bulb is open, replace bulb. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If bulb is okay, connect a jumper wire between Yellow/Black wire of rear dome light assembly and ground. NOTE: Ensure rear dome light connector is still connected.
7. If rear dome light is on, repair open Yellow/Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If rear dome light is off, repair open in Pink/Light Blue wire between left pod switch and rear dome light assembly. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 16B - Checking Liftgate Latch Switch & Related Wiring For Shorts

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Open liftgate. Disconnect liftgate latch switch connector. Connector is located at bottom of liftgate behind trim panel. Check connector condition and clean or repair connector as necessary. If liftgate and rear dome lights go off, replace liftgate latch switch. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS . If liftgate and rear dome lights stay on, repair short to ground in Yellow/Red wire. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS .

TEST 16C - Checking Liftgate Latch Switch & Related Wiring For Open

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Disconnect liftgate latch switch connector. Connector is located at bottom of liftgate behind trim panel. Check connector condition and clean or repair connector as necessary. Connect a jumper wire between Yellow wire of liftgate ajar switch connector and ground. If both liftgate lights are on, replace liftgate latch switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If both liftgate lights did not come on, access right and left liftgate light assemblies. Inspect bulbs. Replace bulbs as necessary. If bulbs are okay, disconnect right liftgate light connector. Connector is located behind trim panel on right side of liftgate. Check connector, and clean or repair connector as necessary.
3. Place DRB-II in ohmmeter mode. Ensure jumper wire is still connected to liftgate latch switch connector. Probe Yellow wire in right liftgate light connector. If resistance is more than 5 ohms, repair open Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, disconnect left liftgate light assembly. Connector is located behind trim panel on left side of liftgate.
4. Check connector, and clean or repair connector as necessary. Probe Yellow wire in left liftgate light connector. If resistance is more than 5 ohms, repair open Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, repair open in Pink/Light Blue wire between left pod switch and left liftgate light connector. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 17A - Checking Diode Assembly & Liftgate Lamps Wiring

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. If rear dome light is off, go to step 3). If rear dome light is staying on, disconnect diode assembly. Diode assembly is located behind trim panel at left rear quarterpanel. Check connector, and clean or repair connector as necessary. If rear dome light still on, repair short to ground in Yellow/Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If rear dome light is off, place DRB-II in ohmmeter mode. Probe terminal No. 4 (Yellow/Red wire) of diode assembly connector. If resistance is less than 5 ohms, repair short to ground in Yellow/Red wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, replace diode assembly. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
3. If rear dome light is off in step 1), open liftgate. If rear dome light is on, system is operational. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If rear dome light is off, gain access to rear dome light assembly. Inspect bulb. If bulb is open, replace bulb. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If bulb is not open, connect a jumper wire between Yellow/Black wire of rear dome light assembly and ground. Ensure rear dome light connector is still connected. If rear dome light is off, repair open Pink/Light Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If rear dome light is on, disconnect jumper wire. Gain access to diode assembly. Disconnect diode assembly. Diode assembly is located behind trim panel at left rear quarter panel. Check connector condition and clean or repair connector as necessary. Connect a jumper wire between terminal No. 2 (Yellow/Black wire) of diode assembly connector and ground.
6. If rear dome light is off, repair open Yellow/Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If rear dome light is on. Disconnect jumper wire. Connect a jumper wire between terminal No. 4 (Yellow/Red wire) of diode assembly connector and ground.
7. If rear dome light is off, replace diode assembly. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If rear dome light is on, disconnect jumper wire. Access liftgate latch switch. Connector is located at bottom of liftgate behind trim panel. Disconnect connector. Check connector, and clean or repair connector as necessary.
8. Connect a jumper wire between Yellow wire of liftgate switch connector and ground. If rear dome light is off, repair open Yellow/Red wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If rear dome light is on, replace liftgate latch switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 18A - Diagnosing Door Ajar Circuit (Left Front Door)

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Close all doors. Turn ignition switch to ON position. Using DRB-II, read left front door ajar switch status. If DRB-II displays CIRCUIT CLOSED, go to step 6). If DRB-II does not display CIRCUIT CLOSED, open left front door.
2. If DRB-II displays CIRCUIT CLOSED, retest system. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, disconnect left front door ajar switch connector. Connector is located at lower left "B" pillar. Check connector, and clean or repair connector as necessary.
3. Connect a jumper wire between Tan wire of left front door ajar switch connector and ground. If DRB-II displays CIRCUIT CLOSED, replace left front door ajar switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If DRB-II does not display CIRCUIT CLOSED, gain access to body controller. Body controller is located under left side of instrument panel. Connect a jumper wire between terminal No. 1 (Tan wire) at wiring harness side of body controller Blue connector and ground.
5. If DRB-II displays CIRCUIT CLOSED, repair open Tan wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
6. If DRB-II displays CIRCUIT CLOSED in step 1), disconnect left front door ajar switch connector. Connector is located at lower left "B" pillar. Check connector, and clean or repair as necessary. Turn ignition switch to OFF position.
7. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Put DRB-II in ohmmeter mode. Probe terminal No. 1 (Tan wire) of body controller Blue connector.
8. If resistance is less than 5 ohms, repair short to ground in Tan wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 19A - Diagnosing Door Ajar Circuit (Right Front Door)

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Close all doors. Turn ignition switch to ON position. Using DRB-II, read right front door ajar switch status. If DRB-II displays CIRCUIT CLOSED, go to step 5). If DRB-II does not display CIRCUIT CLOSED, open right front door. If DRB-II displays CIRCUIT CLOSED, retest system. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If DRB-II does not display CIRCUIT CLOSED, disconnect right front door ajar switch connector. Connector is located at lower right "B" pillar. Check connector, and clean or repair connector as necessary. Connect a jumper wire between Tan/Red wire of right front door ajar switch connector and ground.
3. If DRB-II displays CIRCUIT CLOSED, replace right front door ajar switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, access body controller. Body controller is located under left side of instrument panel. Connect a jumper wire between terminal No. 1 (Tan/Red wire) at wiring harness side of body controller Natural connector and ground.
4. If DRB-II displays CIRCUIT CLOSED, repair open Tan/Red wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If DRB-II displays CIRCUIT CLOSED in step 1), disconnect right front door ajar switch connector. Connector is located at lower right "B" pillar. Check connector, and clean or repair connector as necessary.
6. If DRB-II does not display CIRCUIT CLOSED, replace right front door ajar switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays CIRCUIT CLOSED, turn ignition switch to OFF position. Disconnect body controller Natural connector. Body controller is located under left side of instrument panel.
7. Check connector, and clean or repair connector as necessary. Put DRB-II in ohmmeter mode. Probe terminal No. 1 (Tan/Red wire) of body controller Natural connector. If resistance is less than 5 ohms, repair short to ground in Tan/Red wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 20A - Diagnosing Door Ajar Circuit (Side Door)

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Close all doors. Turn ignition switch to ON position. Using DRB-II, read side door ajar switch status. If DRB-II displays CIRCUIT CLOSED, go to step 5). If DRB-II does not display CIRCUIT CLOSED, open side door. If DRB-II displays CIRCUIT CLOSED, retest system. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If DRB-II does not display CIRCUIT CLOSED, disconnect side door ajar switch connector. Check connector, and clean or repair connector as necessary. Connect a jumper wire between Tan/Yellow and Black wires of side door ajar switch connector. If DRB-II displays CIRCUIT CLOSED, replace side door ajar switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
3. If DRB-II does not display CIRCUIT CLOSED, remove jumper wire. Connect a jumper wire between Tan/Yellow wire of side door ajar switch connector and ground. If DRB-II displays CIRCUIT CLOSED, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, access body controller.
4. Body controller is located under left side of instrument panel. Connect a jumper wire between terminal No. 14 (Tan/Yellow wire) at wiring harness side of body controller Natural connector and ground. Repair open Tan/Yellow wire if DRB-II displays CIRCUIT CLOSED. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If DRB-II displays CIRCUIT CLOSED in step 1), disconnect side door ajar switch connector. Check connector, and clean or repair connector as necessary. If DRB-II does not display CIRCUIT CLOSED, replace side door ajar switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
6. If DRB-II displays CIRCUIT CLOSED, turn ignition switch to OFF position. Disconnect body controller Natural connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
7. Put DRB-II in ohmmeter mode. Probe terminal No. 14 (Tan/Yellow wire) of body controller Natural connector. If resistance is less than 5 ohms, repair short to ground in Tan/Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 21A - Diagnosing Door Ajar Circuit (Liftgate)

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Close liftgate. Turn ignition switch to ON position. Using DRB-II, read liftgate ajar switch status. If DRB-II displays CIRCUIT CLOSED, go to step 5). If DRB-II does not display CIRCUIT CLOSED, open liftgate. If DRB-II displays CIRCUIT CLOSED, retest system. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If DRB-II does not display CIRCUIT CLOSED, disconnect liftgate ajar switch connector. Connector is located at bottom of liftgate behind trim panel. Check connector, and clean or repair connector as necessary. Connect a jumper wire between Tan/Black wire of liftgate ajar switch connector and ground.
3. If DRB-II displays CIRCUIT CLOSED, replace liftgate ajar switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, access body controller. Body controller is located under left side of instrument panel.
4. Connect a jumper wire between terminal No. 2 (Tan/Black wire) of body controller Natural connector and ground. If DRB-II displays CIRCUIT CLOSED, repair open Tan/Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If DRB-II displays CIRCUIT CLOSED in step 1), disconnect liftgate ajar switch connector. Connector is located at bottom of liftgate behind trim panel. Check connector, and clean or repair connector as necessary. If DRB-II does not display CIRCUIT CLOSED, replace liftgate ajar switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
6. If DRB-II displays CIRCUIT CLOSED, turn ignition switch to OFF position. Disconnect body controller Natural connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
7. Put DRB-II in ohmmeter mode. Probe terminal No. 2 (Tan/Black wire) of body controller Natural connector. If resistance is less than 5 ohms, repair short to ground in Tan/Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 22A - Electronic Instrument Cluster Diagnostics

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Using DRB-II, select module electronic cluster. If DRB-II displays NO RESPONSE, refer to VEHICLE COMMUNICATIONS tests. Always start with «TEST 1A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-1a-blank-drb-ii-message) . If DRB-II does not display NO RESPONSE, turn ignition switch to ON position. If instrument cluster display is blank, replace electronic instrument cluster. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If cluster display is not blank, close all doors. Turn ignition switch to OFF position. Wait one minute, then open left front door. If electronic instrument cluster does not glow, perform «TEST 22B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-22b-repairing-electronic-instrument) .
3. If electronic cluster glows, read electronic instrument cluster faults using DRB-II. If DRB-II displays any fault codes, perform «TEST 23A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-23a-electronic-instrument-cluster) . If DRB-II does not display any fault codes, perform «TEST 24A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-24a-electronic-instrument-cluster) .

TEST 22B - Repairing Electronic Instrument Cluster (Power Up Upon Entry)

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to ON position. Close left front door. Read left front door jamb switch status using DRB-II. If DRB-II displays CIRCUIT OPEN, go to step 5). If DRB-II does not display CIRCUIT OPEN, disconnect left front door jamb switch.
2. Check connector, and clean or repair connector as necessary. If DRB-II displays CIRCUIT OPEN, replace left front door jamb switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT OPEN, turn ignition switch to OFF position. Disconnect body controller Blue connector.
3. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Put DRB-II in ohmmeter mode. Probe terminal No. 13 (Black/Light Blue wire) at body controller Blue connector.
4. If resistance is less than 5 ohms, repair short to ground in Black/Light Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If DRB-II displays CIRCUIT OPEN in step 1), open left front door. If DRB-II displays CIRCUIT CLOSED, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, disconnect left front door jamb switch. Check connector, and clean or repair connector as necessary.
6. Connect a jumper wire between Black/Light Blue and Black wires of left front door jamb switch connector. If DRB-II displays CIRCUIT CLOSED, replace left front door jamb switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, connect a jumper wire between terminal Black/Light Blue wire of left front door jamb switch connector and ground.
7. If DRB-II displays CIRCUIT CLOSED, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, disconnect jumper wire. Access body controller. Body controller is located under left side of instrument panel.
8. Connect a jumper wire between terminal No. 13 (Black/Light Blue wire) at wiring harness side of body controller Blue connector and ground. If DRB-II displays CIRCUIT CLOSED, repair open Black/Light Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 23A - Electronic Instrument Cluster Fault Codes

Identify fault codes and perform test and repair as necessary. See ELECTRONIC CLUSTER FAULT CODES table.

ELECTRONIC CLUSTER FAULT CODES

TEST 24A - Electronic Instrument Cluster Problems Not Identified By Fault Codes

1. If no fault codes are displayed, identify fault area of electronic instrument cluster and perform test as specified. See «ELECTRONIC INSTRUMENT CLUSTER PROBLEMS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer) table. ELECTRONIC INSTRUMENT CLUSTER PROBLEMS Problem Test No. Defective Cluster Illumination «28A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-28a-electronic-cluster-or) Defective Gauges «25A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-25a-identifying-defective-gauge) Defective Odometer «24B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-24b-electronic-instrument-cluster) Defective Warning Lights «27A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-27a-faulty-warning-light) NOTE: If any legends fail to light or 2 legends light together during electronic cluster sequential legends test, test is failed.
2. If no speedometer problem exists, perform «TEST 24C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-24c-electronic-instrument-cluster) . If a speedometer problem exists, actuate electronic cluster sequential legends test using DRB-II. If test is passed, replace electronic instrument cluster. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If test is failed, check for engine diagnostic codes. See appropriate G - TESTS W/ CODES article in the ENGINE PERFORMANCE Section.

TEST 24B - Electronic Instrument Cluster Odometer Problem

Note. If any legends fail to glow or 2 legends glow together during electronic cluster sequential legends test, test is failed.

Using DRB-II, actuate electronic instrument cluster sequential legends test. If test is failed, replace electronic instrument cluster. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS . If test is passed, replace body controller. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS .

TEST 24C - Electronic Instrument Cluster Switch Test

1. Press TRIP button on electronic instrument cluster and read DRB-II status. If DRB-II displays CIRCUIT CLOSED, replace electronic instrument cluster. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, press RESET button on electronic instrument cluster and read DRB-II status.
2. If DRB-II does not display CIRCUIT CLOSED, replace electronic instrument cluster. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays CIRCUIT CLOSED, press US/METRIC button on electronic instrument cluster and read DRB-II status.
3. If DRB-II displays CIRCUIT CLOSED, retest system. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, replace electronic instrument cluster. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 25A - Identifying Defective Gauge

1. Using DRB-II, actuate electronic instrument cluster sequential segment test. This test should cause all vacuum fluorescent bars on gauges to glow. If any bar does not glow or 2 bars glow together, test is failed.
2. If test is failed, replace electronic instrument cluster. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If test is passed, check temperature gauge operation. If temperature gauge is not operating correctly, perform «TEST 26A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-26a-temperature-gauge-problem) . If temperature gauge is operating correctly, check fuel gauge operation.
3. If fuel gauge is not operating correctly, perform «TEST 36A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-36a-repairing-fuel-level) . If fuel gauge is operating correctly, check oil gauge operation. If oil gauge is not operating correctly, perform «TEST 46A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-46a-oil-pressure-sensor) .
4. If oil gauge is operating correctly, check voltage gauge. If voltage gauge is not operating correctly, check charging system. If voltage gauge is operating correctly, test is complete. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 26A - Temperature Gauge Problem

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Check cooling system. If cooling system is not operating correctly, repair cooling system as necessary. If cooling system is operating correctly, stop sequential segments test using DRB-II. Turn ignition switch to ON position.
2. Using DRB-II, read engine temperature sensor voltage. If DRB-II displays less than 10 volts, go to step 5). If DRB-II displays more than 10 volts, disconnect engine temperature sensor connector. Check connector, and clean or repair connector as necessary.
3. Connect a jumper wire between Violet/Yellow wire of engine temperature sensor connector and ground. If DRB-II displays less than one volt, replace engine temperature sensor. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays more than one volt, access body controller.
4. Body controller is located under left side of instrument panel. Connect a jumper wire between terminal No. 24 (Violet/Yellow wire) at wiring harness side of body controller Natural connector and ground. If DRB-II displays less than one volt, repair open Violet/Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays more than one volt, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If DRB-II displays less than 10 volts in step 2), disconnect engine temperature sensor connector. Check connector, and clean or repair connector as necessary. If DRB-II displays more than 10 volts, replace engine temperature sensor. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
6. If DRB-II displays less than 10 volts, turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Put DRB-II in voltmeter mode.
7. Turn ignition switch to ON position. Probe terminal No. 6 (Dark Blue/White wire) of body controller Blue connector. If voltage is less than 10 volts, repair open Dark Blue/White wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is more than 10 volts, turn ignition switch to OFF position.
8. Put DRB-II in ohmmeter mode. Probe Violet/Yellow wire of engine temperature sensor connector. If resistance is less than 5 ohms, repair short to ground in Violet/Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 27A - Faulty Warning Light

1. Ensure parking brake is off. Close all doors, and start engine. Check oil pressure and engine temperature gauges operation. If gauges are not operating correctly, perform «TEST 25A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-25a-identifying-defective-gauge) . If gauges are operating correctly, turn engine off.
2. Turn ignition switch to ON position. Using DRB-II, actuate sequential light test. Sequential light test should individually turn every warning light on and then off.
3. If test did not sequentially illuminate all 6 warning lights, remove and inspect any inoperative warning light bulbs from electronic instrument cluster. If bulb is defective, replace bulb. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If bulb is okay, replace electronic instrument cluster. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If test did sequentially illuminate all 6 warning lights, determine which warning light circuit is not operating correctly. Perform test as specified. See «DEFECTIVE WARNING LIGHTS DIRECTORY»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer) table. DEFECTIVE WARNING LIGHTS DIRECTORY Defective Warning Light Test No. CHECK ENGINE (1) Check Gauges (1) Left Front Door «18A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-18a-diagnosing-door-ajar) Liftgate «21A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-21a-diagnosing-door-ajar) Right Front Door «19A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-19a-diagnosing-door-ajar) Side Door «20A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-20a-diagnosing-door-ajar) Washer Fluid «48A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-48a-repairing-faulty-washer) (1) See appropriate G - TESTS W/ CODES article.

TEST 28A - Electronic Cluster Or Compass/Mini-Trip Illumination Test

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Ensure park light switch is ON. If park lights do not turn ON, perform «TEST 28B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-28b-electronic-instrument-cluster) . If park lights turn ON, read panel light sensor voltage while moving dimmer control lever from LOW to HIGH position and using DRB-II.
2. If DRB-II display changes from one to 5 volts, perform «TEST 28C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-28c-electronic-instrument-cluster) . If DRB-II display does not change from one to 5 volts, using DRB-II, read panel light sensor voltage. If voltage is more than 4 volts, perform «TEST 28F»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-28f-electronic-instrument-cluster) . If voltage is less than 4 volts, inspect fuse No. 9 in fuse block.
3. If fuse is okay, repair short to ground in Orange/Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If fuse is blown, turn ignition switch to OFF position. Place DRB-II in ohmmeter mode. Disconnect body Natural connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
4. Probe Tan wire (in fuse block) to fuse No. 9. Repair short to ground in Tan wire if resistance is less than 5 ohms. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, replace fuse. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 28B - Electronic Instrument Cluster Or Compass/Mini-Trip Illumination Test

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Access left switch pod assembly. (Scheme 109) Place DRB-II in voltmeter mode. Disconnect left switch pod Blue connector. Check connector, and clean or repair connector as necessary. Probe terminal No. 4 (Brown/Orange wire) of left switch pod Blue connector.
2. If voltage is more than 10 volts, replace left switch pod. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If voltage is less than 10 volts, inspect fuse No. 22 in fuse block. If fuse is blown, perform «TEST 28E»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-28e-electronic-instrument-cluster). If fuse is okay, probe Red/Black wire (in fuse block) to fuse No. 22. If voltage is less than 10 volts, repair open Red/Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).
3. If voltage is more than 10 volts, remove park light relay from power distribution center. Check connector, and clean or repair connector as necessary. Reinstall fuse No. 22. Using an external ohmmeter, check resistance of Brown/Orange wire between terminal No. 4 of left pod switch connector and park light relay connector.
4. If resistance is more than 5 ohms, repair open Brown/Orange wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is less than 5 ohms, place DRB-II in voltmeter mode. Probe Pink/Red wire of park light relay connector. If voltage is less than 10 volts, repair open Pink/Red wire between fuse and relay connector. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).
5. If voltage is more than 10 volts, probe Pink/Red wire of park light relay connector. If voltage is less than 10 volts, repair open Pink/Red wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If voltage is more than 10 volts, connect a jumper wire between Pink/Red and Black/Yellow of park light relay connector.
6. If instrument cluster glows, replace park light relay. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If instrument cluster does not glow, inspect fuse No. 9. If fuse is okay, perform «TEST 28G»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-28g-electronic-instrument-cluster). If fuse is blown, place DRB-II in ohmmeter mode. Probe Tan wire (in fuse block) to fuse No. 9.
7. If resistance is more than 5 ohms, replace fuse No. 9. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is less than 5 ohms, disconnect body controller Natural connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
8. Probe terminal No. 8 (Tan wire) of body controller Natural connector. If resistance is less than 5 ohms, repair short to ground in Tan wire and replace fuse No. 9. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is more than 5 ohms, replace body controller and fuse No. 9. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).

TEST 28C - Electronic Instrument Cluster Or Compass/Mini-Trip Illumination Test

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to ON position. If there is a problem with electronic instrument cluster illumination only, perform «TEST 28D»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-28d-electronic-instrument-cluster) . If there is a problem with compass/mini-trip illumination only, replace compass/mini-trip module. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If a problem exists with Mechanical Instrument Cluster (MIC) illumination only, replace MIC. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If no problem with MIC illumination exists, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 28D - Electronic Instrument Cluster Or Compass/Mini-Trip Illumination Test

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Disconnect left pod switch Black connector. (Scheme 109) Check connector condition and clean or repair connector as necessary. Place DRB-II in ohmmeter mode. Probe terminal No. 3 (Yellow/Black wire) of left pod switch Black connector. If resistance is more than 10 ohms, replace electronic instrument cluster.
2. If resistance is less than 10 ohms, disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Probe terminal No. 3 (Yellow/Black wire) of body controller Blue connector.
3. If resistance is less than 10 ohms, repair short to ground in Yellow/Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is more than 10 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).

TEST 28E - Electronic Instrument Cluster Or Compass/Mini-Trip Illumination Test

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to OFF position. Disconnect left pod switch. (Scheme 109) Remove park light relay from power distribution center. Remove fuse No. 9 from fuse block. Place DRB-II in ohmmeter mode. Probe Black/Yellow wire of park light relay connector.
2. If resistance is less than 5 ohms, repair short to ground in Black/Yellow wire and replace fuse No. 22. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is more than 5 ohms, probe Brown/Orange wire of park light relay connector.
3. If resistance is less than 5 ohms, repair short to ground in Brown/Orange wire and replace fuse No. 22. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is more than 5 ohms, probe Pink/Red wire of park light relay connector.
4. If resistance is less than 5 ohms, repair short to ground in Pink/Red wire and replace fuse No. 22. If resistance is more than 5 ohms, replace fuse No. 22. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).

TEST 28F - Electronic Instrument Cluster Or Compass/Mini-Trip Illumination Test

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to OFF position. Disconnect left switch pod Black connector. Check connector, and clean or repair connector as necessary. Disconnect body controller Natural connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
2. Using an external ohmmeter, check resistance of Orange/Black wire between terminals No. 1 of left pod switch Black connector and No. 10 of body controller Natural connector. If resistance is more than 5 ohms, repair open Orange/Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
3. If resistance is less than 5 ohms, disconnect left pod switch Gray connector. Check connector condition and clean or repair connector as necessary. Probe terminal No. 1 (Black wire) of left pod switch Gray connector. If resistance is more than 10 ohms, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If resistance is less 10 ohms, probe terminal No. 5 (Black wire) of left pod switch Black connector. If resistance is more than 10 ohms, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 10 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 28G - Electronic Instrument Cluster Or Compass/Mini-Trip Illumination Test

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to OFF position. Put DRB-II in ohmmeter mode. Probe Black/Yellow wire (in fuse block) to fuse No. 9. If voltage is more than 10 volts, go to step 4). If voltage is less than 10 volts, disconnect body controller Natural connector. Body controller is located under left side of instrument panel.
2. Check connector, and clean or repair connector as necessary. Using an external ohmmeter, check resistance of Tan wire between fuse No. 9 (in fuse block) and terminal No. 8 of body controller Natural connector. If resistance is more than 5 ohms, repair open Tan wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
3. If resistance is less than 5 ohms, connect a jumper wire between Pink/Red and Black/Yellow wires at park light relay connector. Check park lights. If park lights are off, repair open Black/Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If park lights are on, replace park light relay. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If voltage is more than 10 volts in step 1), turn ignition switch to OFF position. Disconnect left pod switch Blue and Black connectors. Check connectors, and clean or repair connectors as necessary. Place DRB-II in ohmmeter mode. Probe terminal No. 1 of left pod switch.
5. Move dimmer switch from low to high position. If resistance does not change from 1000 to 10,000 ohms, replace left switch pod. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance change from 1000 to 10,000 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 29A - Electro/Mechanical Instrument Cluster Diagnostics

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. These test procedures cover both base and premium Mechanical instrument cluster (MIC).

1. Using DRB-II, select module MIC cluster. If DRB-II displays NO RESPONSE, refer to VEHICLE COMMUNICATIONS tests. If DRB-II does not display NO RESPONSE, using DRB-II, read instrument cluster I.D. switch status.
2. If DRB-II displays EIC, go to next step. If DRB-II does not display EIC, identify instrument cluster problem and perform test as specified. See «INSTRUMENT CLUSTER PROBLEM DIRECTORY»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer) table. INSTRUMENT CLUSTER PROBLEM DIRECTORY Problem Test No. Defective Gauges «30A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-30a-identifying-faulty-gauge) Defective Odometer «31A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-31a-electromechanical-instrument-cluster) Defective Warning Lights «32A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-32a-identifying-faulty-warning) Improper Cluster Illumination «28A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-28a-electronic-cluster-or)
3. Turn ignition switch to OFF position. Disconnect instrument cluster connector. Check connector, and clean or repair connector as necessary. Turn ignition switch to ON position. Connect a jumper wire between terminal No. 3 (Orange/Dark Blue wire) of instrument cluster connector and ground.
4. Using DRB-II, read cluster ID switch status. If DRB-II does not display EIC, replace MIC. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays EIC, access body controller. Body controller is located under left side of instrument panel.
5. Connect a jumper wire between terminal No. 5 (Orange/Dark Blue wire) at wiring harness side of body controller Natural connector and ground. If DRB-II does not display EIC, repair open Orange/Dark Blue or Light Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays EIC, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 30A - Identifying Faulty Gauge On Electro/Mechanical Instrument Cluster

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Using DRB-II actuate the faulty gauge in electro/mechanical cluster. This should actuate gauge from LO to HI and then return it to its original position. If more than one gauge actuated, perform TEST 30C. If more than one gauge did not actuate, check if actuator test passed.
2. If actuator test did not pass, perform «TEST 30B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-30b-repairing-faulty-gauge) . If actuator test passed, check fuel gauge operation. If fuel gauge is not functioning properly, perform «TEST 36A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-36a-repairing-fuel-level) . If fuel gauge is functioning properly, check temperature gauge operation.
3. If temperature gauge is not functioning properly, perform «TEST 35A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-35a-repairing-temperature-gauge) . If temperature gauge is functioning properly check speedometer and tachometer operation. If either speedometer or tachometer is not functioning correctly, repair as necessary.

TEST 30B - Repairing Faulty Gauge On Electro/Mechanical Instrument Cluster

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to OFF position. Disconnect Mechanical Instrument Cluster (MIC) connector. Check connector, and clean or repair connector as necessary. Put DRB-II in ohmmeter mode. Probe terminal No. 7 (Black/Light Green wire) of MIC connector.
2. If resistance is more than 5 ohms, repair open Black/Light Green wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, remove faulty gauge. Inspect printed circuit board. If circuit board is not okay, repair or replace circuit board as necessary. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If circuit board is okay, replace gauge. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 30C - Repairing Faulty Instrument Cluster

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to OFF position. Disconnect body controller Natural connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Disconnect Mechanical Instrument Cluster (MIC) connector.
2. Check connector, and clean or repair connector as necessary. Using an external ohmmeter, check resistance of Orange/Dark Blue wire between terminals No. 5 of body controller Natural connector and No. 3 of MIC connector. If resistance is more than 5 ohms, repair open Orange/Dark Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
3. If resistance is less than 5 ohms, check resistance of Light Blue wire between terminals No. 6 of body controller Natural connector and No. 5 of MIC connector. If resistance is more than 5 ohms, repair open Light Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 31A - Electro/Mechanical Instrument Cluster Odometer Failure

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Using DRB-II, select body controller module. If DRB-II displays NO RESPONSE, refer to VEHICLE COMMUNICATIONS. If DRB-II does not display NO RESPONSE, read electronic instrument cluster faults using DRB-II.
2. If fault 08 (odometer test failure) exists, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If fault 08 does not exist, turn ignition switch to OFF position. Disconnect Mechanical Instrument Cluster (MIC) connector. Check connector, and clean or repair connector as necessary.
3. Check if odometer is original equipment. If odometer assembly has not previously been replaced, replace odometer assembly. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If odometer assembly has been replaced previously, replace printed circuit board. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 32A - Identifying Faulty Warning Light On Premium Electro/Mechanical Instrument Cluster

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. A base Mechanical Instrument Cluster (MIC) has only 3 gauges.

1. If vehicle is equipped with a base MIC, perform «TEST 32B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-32b-identifying-faulty-warning) . If vehicle is equipped with a premium instrument cluster, check if an instrument cluster gauge problem exists. If a coolant temperature gauge, oil pressure gauge or voltage gauge problem exists, perform «TEST 30A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-30a-identifying-faulty-gauge) . If gauges are functioning properly, actuate sequential light test using DRB-II.
2. If sequential light test did not pass, perform «TEST 32C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-32c-repairing-faulty-warning) . If sequential light test passed, identify faulty warning light and perform test as indicated. See «WARNING LIGHT TEST DIRECTORY»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer) table. WARNING LIGHT TEST DIRECTORY Defective Warning Light Test No. CHECK ENGINE (1) Check Gauges (1) Door Ajar «33A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-33a-repairing-door-ajar) Liftgate Ajar «21A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-21a-diagnosing-door-ajar) Low Fuel «36A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-36a-repairing-fuel-level) Low Washer Fluid «48A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-48a-repairing-faulty-washer) (1) See appropriate G - TESTS W/ CODES article.

TEST 32B - Identifying Faulty Warning Light On Base Electro/Mechanical Instrument Cluster

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. While observing oil warning light, start engine. If oil light stays on, perform «TEST 46A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-46a-oil-pressure-sensor) . If oil warning light stays off, perform «TEST 32C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-32c-repairing-faulty-warning) . If oil warning light comes on and then goes out when engine starts, check if a coolant temperature or voltage problem exists. If a problem exists, repair cooling system or charging circuit as necessary.
2. If coolant system and charging circuit are okay, using DRB-II, actuate sequential light test. If sequential light test did not pass, perform «TEST 32C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-32c-repairing-faulty-warning) . If sequential light test passed, identify faulty warning light and perform test as indicated. See «WARNING LIGHT TEST DIRECTORY»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer) table. WARNING LIGHT TEST DIRECTORY Defective Warning Light Test No. CHECK ENGINE (1) Check Gauges (1) Door Ajar «33A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-33a-repairing-door-ajar) Liftgate Ajar «21A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-21a-diagnosing-door-ajar) Low Fuel «36A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-36a-repairing-fuel-level) Low Washer Fluid «48A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-48a-repairing-faulty-washer) Voltage (Battery Symbol) «34A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-34a-repairing-voltage-gauge) (1) See appropriate G - TESTS W/ CODES article.

TEST 32C - Repairing Faulty Warning Light Condition

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to OFF position. Disconnect Mechanical Instrument Cluster (MIC) connector. Check connector, and clean or repair connector as necessary. Remove inoperative warning light bulb. Inspect bulb. Replace bulb as necessary. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If bulb is okay, inspect printed circuit board. Repair or replace circuit board as necessary. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If circuit board is okay, replace MIC printed circuit board. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 33A - Repairing Door Ajar Warning Light

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Close all doors. Using DRB-II, read left front door ajar switch status. If DRB-II displays CIRCUIT CLOSED, perform TEST 18A. If DRB-II does not display CIRCUIT CLOSED, open left front door. If DRB-II does not display CIRCUIT CLOSED, perform «TEST 18A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-18a-diagnosing-door-ajar) .
2. If DRB-II displays CIRCUIT CLOSED, using DRB-II, read right front door ajar switch status. If DRB-II displays CIRCUIT CLOSED, perform «TEST 19A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-19a-diagnosing-door-ajar) . If DRB-II does not display CIRCUIT CLOSED, open right front door. If DRB-II does not display CIRCUIT CLOSED, perform «TEST 19A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-19a-diagnosing-door-ajar) .
3. If DRB-II displays CIRCUIT CLOSED, read side door ajar switch status using DRB-II. If DRB-II displays or does not display CIRCUIT CLOSED, perform «TEST 20A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-20a-diagnosing-door-ajar) .

TEST 34A - Repairing Voltage Gauge Or Voltage Light Problem

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
2. Put DRB-II in voltmeter mode. Probe terminal No. 8 (Pink wire) of body controller Blue connector. If voltage is less than 10 volts, perform «TEST 10A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-10a-diagnosing-left-pod) . If voltage is more than 10 volts, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 35A - Repairing Temperature Gauge Problem

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. Ensure engine cooling system is operating properly.

1. If cooling system not operating properly, repair cooling system as necessary. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If cooling system is operating properly, stop actuator test using DRB-II. Using DRB-II, read engine temperature sensor voltage. If voltage is less than 10 volts, go to step 5).
2. If voltage is more than 10 volts, disconnect engine temperature sensor connector. Check connector, and clean or repair connector as necessary. Connect a jumper wire between Violet/Yellow wire of engine temperature sensor connector and ground. Using DRB-II, read engine temperature sensor voltage.
3. If voltage is less than one volt, replace engine temperature sensor. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is more than one volt, gain access to body controller. Body controller is located under left side of instrument panel. Connect a jumper wire between terminal No. 24 (Violet/Yellow wire) of body controller Natural connector and ground.
4. If DRB-II displays less than one volt, repair open Violet/Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays more than one volt, disconnect body controller Natural connector. Check connector, and clean or repair connector as necessary and replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If voltage is less than 10 volts in step 1), disconnect engine temperature sensor connector. Using DRB-II, read engine temperature sensor voltage. If voltage is more than 10 volts, replace engine temperature sensor. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is less than 10 volts, turn ignition switch to OFF position.
6. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Turn ignition switch to ON position. Put DRB-II in voltmeter mode.
7. Probe terminal No. 6 (Dark Blue/White wire) of body controller Blue connector. If voltage is less than 10 volts, repair open Dark Blue/White wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is more than 10 volts, turn ignition switch to OFF position. Put DRB-II in ohmmeter mode.
8. Probe Violet/Yellow wire of temperature sensor connector. If resistance is more than 5 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, repair short to ground in Violet/Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 36A - Repairing Fuel Level Problem

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Using DRB-II, stop actuator test. Disconnect fuel pump/sending unit harness connector. Connector is located underneath vehicle along frame rail. Check connector, and clean or repair connector as necessary. Using DRB-II, read fuel level sensor voltage.
2. If voltage is more than 8 volts, go to step 5). If voltage is less than 8 volts, turn ignition switch to OFF position. Disconnect body controller Blue connector. Check connector, and clean or repair connector as necessary.
3. Turn ignition switch to ON position. Put DRB-II in voltmeter mode. Probe terminal No. 6 (Dark Blue/White wire) of body controller Blue connector. If voltage is less than 10 volts, repair open Dark Blue/White wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is more than 10 volts, turn ignition switch to OFF position.
4. Put DRB-II in ohmmeter mode. Probe terminal No. 18 (Dark Blue wire) of body controller Blue connector. If resistance is less than 5 ohms, repair short to ground in Dark Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If voltage is more than 8 volts in step 2), connect a jumper wire between Dark Blue and Black wires of fuel pump/sending unit connector. Using DRB-II, read fuel level sensor voltage. If DRB-II displays 0.0 VOLTS, replace fuel level sensor. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
6. If DRB-II does not display 0.0 VOLTS, disconnect jumper wire. Connect a jumper wire between Dark Blue wire of fuel pump/sending unit connector and ground. If DRB-II displays 0.0 VOLTS, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display 0.0 VOLTS, disconnect jumper wire. Access body controller.
7. Body controller is located under left side of instrument panel. Connect a jumper wire between terminal No. 18 (Dark Blue wire) at wiring harness side of body controller Blue connector and ground. If DRB-II displays 0.0 VOLTS, repair open Dark Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display 0.0 VOLTS, turn ignition switch to OFF position. Disconnect body controller. Check connectors, and clean or repair connectors as necessary. Replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 37A - Headlights Will Not Turn Off

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Ensure headlight switch is off. Disconnect body controller Natural connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. If headlights go off, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).
2. If headlights are still on, remove headlight low beam relay from power distribution center. If headlights are still on, repair wiring as necessary. If headlights go off, place DRB-II in ohmmeter mode.
3. Probe Orange/White wire of low beam relay connector. If resistance is more than 5 ohms, replace headlight low beam relay. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is less than 5 ohms, disconnect left pod switch assembly. (Scheme 109) Check connector, and clean or repair connector as necessary.
4. Probe Orange/White wire of low beam relay connector. If resistance is less than 5 ohms, repair short to ground in Orange/White wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If resistance is more than 5 ohms, replace left pod switch assembly. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).

TEST 37B - Headlight Time Delay Inoperative

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. This test is for vehicles equipped with compass/mini-trip computer.

1. Turn ignition switch to ON position. Turn headlight switch to low beam position. If park and headlights do not operate properly by headlight switch, check headlight switch circuit and repair as necessary. If vehicle has an illumination problem, perform «TEST 28A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-28a-electronic-cluster-or) .
2. If vehicle does not have an illumination problem, turn headlight switch to OFF position. Turn ignition switch to OFF position. Disconnect body controller Natural connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
3. Connect a jumper wire between terminal No. 20 (Orange/White wire) of body controller Natural connector and ground. Check headlights. If headlights are off, repair open Orange/White wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If headlights are on, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 38A - Diagnosing Ground Supply & Left Front Door Illuminated Entry Circuit

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. Liftgate lights are not a part of this system.

1. Move dimmer control lever to center position. Turn courtesy lights on by opening left front door. If courtesy lights are off, perform «TEST 10A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-10a-diagnosing-left-pod) . If only one light is inoperative, perform «TEST 40A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-40a-checking-diode-assembly) . If courtesy lights are on, lower left front window.
2. Close all doors. Manually lock left front door. Turn ignition switch to OFF position. Wait 30 seconds. Using DRB-II, actuate illuminated entry system by lifting left front door handle. If courtesy lights are on, perform «TEST 39A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-39a-diagnosing-right-front) . If lights are off, disconnect body controller Blue connector.
3. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Remove left front door panel and disconnect illuminated entry switch Black connector. Using an external ohmmeter while lifting left front door handle, check resistance between terminal No. 16 (White wire) of body controller Blue connector and Gray wire at wiring harness side of illuminated entry switch Black connector.
4. If resistance is more than 5 ohms, perform «TEST 38B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-38b-diagnosing-left-front) . If resistance is less than 5 ohms, reconnect body controller connector. Close all doors. Connect a jumper wire between terminal No. 25 (Yellow wire) at wiring harness side of body controller Blue connector and ground.
5. Check courtesy lights. If courtesy lights are off, repair open Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If courtesy lights are on, disconnect jumper wire. Disconnect illuminated entry switch Black connector. Check connector, and clean or repair connector as necessary.
6. Using an external ohmmeter, check resistance between White and Gray wires of illuminated entry switch Black connector. If resistance is less than 5 ohms, replace left front door illuminated entry switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, remove right front door panel.
7. Disconnect illuminated entry switch connector. Check connector, and clean or repair connector as necessary. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
8. Manually lock right front door. Using an external ohmmeter while lifting right front door handle, check resistance between terminal No. 16 (White wire) at wiring harness side of body controller Blue connector and Gray wire of illuminated entry switch connector.
9. If resistance is more than 5 ohms, replace right front door illuminated entry switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, place DRB-II in ohmmeter mode. Probe terminal No. 16 (White wire) of body controller Blue connector.
10. If resistance is more than 5 ohms, perform «TEST 38C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-38c-testing-power-supply) . If resistance is less than 5 ohms, repair short to ground in White wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 38B - Diagnosing Left Front Door Illuminated Entry Circuit

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. With left front door panel removed, disconnect illuminated entry switch Black connector. Check connector, and clean or repair connector as necessary. Reconnect body controller Blue connector. Connect a jumper wire between White and Black wires of illuminated entry switch connector.
2. Check courtesy lights. If courtesy lights are on, replace left front door illuminated entry switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If courtesy lights are off, disconnect jumper wire. Connect a jumper wire between White wire of illuminated entry switch connector and ground.
3. Check courtesy lights. If courtesy lights are on, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If courtesy lights are off, repair open White wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 38C - Testing Power Supply To Body Controller

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Place DRB-II in voltmeter mode. Probe terminal No. 8 (Pink wire) of body controller Blue connector. If voltage is more than 10 volts, replace body controller. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS . If voltage is less than 10 volts, repair open Pink wire. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS .

TEST 39A - Diagnosing Right Front Door Illuminated Entry Circuit

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Lower right front window. Close all doors. Manually lock right front door. Turn ignition switch to OFF position. Wait 30 seconds. Using DRB-II, actuate illuminated entry system by lifting right front door handle. If courtesy lights are on, system is functioning properly. Retest system.
2. If courtesy lights are off, remove right front door panel and disconnect illuminated entry switch Black connector. Check connector, and clean or repair connector as necessary. Connect a jumper wire between White and Black wires of illuminated entry switch connector.
3. Check courtesy lights. If courtesy lights are on, replace right front door illuminated entry switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If courtesy lights are off, disconnect jumper wire. Connect a jumper wire between White wire of illuminated entry switch and ground.
4. Check courtesy lights. If courtesy lights are on, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If courtesy lights did are off, repair open White wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 40A - Checking Diode Assembly & Power Supply

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Inspect inoperative courtesy light bulb. Replace bulb as necessary. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If bulb is okay, disconnect inoperative light assembly. Check connectors, and clean or repair connectors as necessary. Place DRB-II in ohmmeter mode. NOTE: Ensure left front door is still open.
2. Probe Yellow/tracer wire (color of tracer may vary) in inoperative light connector. If resistance is more than 5 ohms, repair open Yellow/tracer wire (color of tracer may vary). Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, check if rear dome light is the only inoperative light. If rear dome light is not the only light that is inoperative, repair open in Pink/Light Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
3. If rear dome light is the only inoperative light, access diode assembly. Diode assembly is located behind trim panel at left rear quarterpanel. Connect a jumper wire between Yellow/Black wire of diode assembly connector and ground.
4. Check rear dome light. If rear dome light is off, repair open in Yellow/Black wire between diode assembly connector and rear dome light. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If rear dome light is on, replace diode assembly. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 41A - Identifying Intermittent Wiper Problem

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to ON position. Operate front wipers in all modes. If a problem exists with low or high speed wiper functions, see WIPER/WASHER SYSTEMS article in the ACCESSORIES/SAFETY EQUIPMENT Section. If wipers operate in intermittent (delay) mode, perform «TEST 42A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-42a-checking-power) .
2. If wipers operate in all intermittent ranges, perform «TEST 42A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-42a-checking-power) . If washer pump does not operate, perform «TEST 43A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-43a-checking-washer-pump) . If washer pump operates, turn wiper switch to intermittent (delay) position. Actuate wiper motor test using DRB-II. If wiper motor operates, perform «TEST 41B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-41b-checking-controller) .
3. If wiper motor does not operate, using DRB-II, stop wiper motor test. Turn ignition switch to ON position. Remove and inspect fuse No. 5 from fuse block. If fuse is blown, perform «TEST 41C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-41c-checking-power) . If fuse is okay, place DRB-II in voltmeter mode. Probe Black/White wire (in fuse block) to fuse No. 5.
4. If voltage is less than 10 volts, repair open Black/White wire between fuse No. 5 and ignition switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is more than 10 volts, replace fuse No. 5. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
5. Probe terminal No. 11 (Dark Blue wire) of body controller Blue connector. If voltage is less than 10 volts, repair open Dark Blue wire between fuse No. 5 and Blue connector. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is more than 10 volts, turn ignition switch to OFF position.
6. Access multifunction switch Black connector. Check connector, and clean or repair connector as necessary. Probe terminal No. 4 (Dark Blue wire) of multifunction switch Black connector. If voltage is less than 10 volts, repair open Dark Blue wire between fuse No. 5 and multifunction switch connector. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
7. If voltage is more than 10 volts, disconnect wiper motor connector. Check connector condition and clean or repair connector as necessary. Probe Dark Blue wire of wiper motor connector. If voltage is less than 10 volts, repair open Dark Blue wire between fuse No. 5 and wiper motor connector. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
8. If voltage is more than 10 volts, place DRB-II in ohmmeter mode. Probe Black wire of multifunction switch connector. If resistance is more than 5 ohms, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, probe Dark Green wire at wiper motor connector.
9. If resistance is more than 5 ohms, repair open Dark Green wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, replace wiper motor. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 41B - Checking Controller & Wiper Switch

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Using DRB-II, stop wiper motor actuation test. Gain access to multifunction switch connector. Ensure wiper switch is still in delay position. Put DRB-II in voltmeter mode. Backprobe terminal No. 1 (Dark Green/Yellow wire) of multifunction switch connector. While rotating wiper switch from low to high, read voltage.
2. If voltage changes from one to 12 volts, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage does not change from one to 12 volts, turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
3. Put DRB-II in ohmmeter mode. Probe terminal No. 1 (Dark Green/Yellow wire) of multifunction switch connector. Rotate wiper switch from low to high. If DRB-II displays a change from 40/k ohms to 350/k ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If DRB-II does not display a change from 40/k ohms to 350/k ohms, disconnect multifunction switch connector. Check connector, and clean or repair connector as necessary. Probe terminal No. 17 (Dark Green/Yellow wire) of body controller Blue connector. If resistance is more than 5 ohms, repair open Dark Green/Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, replace multifunction switch module. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 41C - Checking Power & Ground Supply

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Disconnect multifunction switch connector. Check connector condition and clean or repair connector as necessary. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
2. Disconnect wiper motor connector. Check connector condition and clean or repair connector as necessary. Probe Dark Blue wire (in fuse block) to fuse No. 5. If resistance is less than 5 ohms, repair short to ground in Dark Blue wire. Replace fuse No. 5. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, reconnect multifunction switch connector.
3. Probe Dark Blue wire (in fuse block) to fuse No. 5. If resistance is less than 5 ohms, replace multifunction switch. Replace fuse No. 5. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, reconnect body controller Blue connector. Probe Dark Blue wire (in fuse block) to fuse No. 5.
4. If resistance is less than 5 ohms, replace body controller. Replace fuse No. 5. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, reconnect wiper motor connector. Probe Dark Blue wire (in fuse block) to fuse No. 5. If resistance is less than 5 ohms, replace wiper motor and fuse No. 5. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, replace fuse No. 5. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 42A - Checking Power & Ground Supply

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn wiper switch off. If wipers park properly, perform «TEST 43A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-43a-checking-washer-pump) . If wipers do not park properly, place DRB-II in voltmeter mode. Disconnect wiper motor connector. Check connector, and clean or repair connector as necessary.
2. Turn wiper switch ON. Probe Dark Green wire at wiper motor connector. Voltage should change from zero to 12 volts. If DRB-II does not display 0-12 volts during sweep, replace wiper motor. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays 0-12 volts during sweep, turn ignition switch to OFF position.
3. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Disconnect wiper motor connector. Check connector, and clean or repair connector as necessary.
4. Using an external ohmmeter, check resistance between terminal No. 12 (Dark Green/White wire) of body controller Blue connector and Dark Green wire of wiper motor connector. If resistance is more than 5 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If resistance is less than 5 ohms, place DRB-II in ohmmeter mode. Probe terminal No. 10 (Dark Green/White wire) of body controller Blue connector. If resistance is more than 5 ohms, repair open Dark Green/White or Dark Green wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
6. If resistance is less than 5 ohms, probe terminal No. 17 (Black wire) of multifunction switch connector. If resistance is more than 5 ohms, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, replace multifunction switch module. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 43A - Checking Washer Pump Operation

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Access multifunction switch connector. Place DRB-II in voltmeter mode. Backprobe terminal No. 3 (Brown wire) of multifunction switch connector. Push washer button on stalk switch. While holding washer button in, observe voltage. If voltage is more than 10 volts, go to step 3).
2. If voltage is less than 10 volts, probe terminal No. 4 (Dark Blue wire) of multifunction switch connector. If voltage is more than 10 volts, replace multifunction switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is less than 10 volts, remove and inspect fuse No. 5 from fuse block. If fuse is blown, replace fuse No. 5. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If fuse is okay, go to next step.
3. If voltage was more than 10 volts in step 1) or fuse is okay in step 2), disconnect washer pump connector. Check connector, and clean or repair connector as necessary. Probe Brown wire of washer pump connector. While pushing washer button in, observe DRB-II display, If voltage is less than 10 volts, repair open Brown wire between washer motor connector and multifunction switch connector. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If voltage is more than 10 volts, disconnect multifunction switch connector. Check connector, and clean or repair connector as necessary. Using an external ohmmeter, probe Dark Blue wire between fuse No. 5 in fuse block and multifunction switch connector.
5. If resistance is more than 5 ohms, repair open Dark Blue wire between fuse block and multifunction switch connector. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, replace washer pump. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 44A - Diagnosing Key-In Light Circuit

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Check courtesy lights. If courtesy lights are inoperative, perform «TEST 10A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-10a-diagnosing-left-pod). If courtesy lights are functioning properly, ensure all doors are closed. Turn ignition switch to OFF position. Wait one minute. Ensure dimmer control lever is in center position.
2. If key light is on constantly, perform «TEST 44B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-44b-checking-for-key-in). If key light is not on constantly, turn ignition switch to ON position. Using DRB-II, actuate key in light test. If key light flashes off then on, perform «TEST 44C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-44c-diagnosing-door-jamb). If key light does not flash off then on, using DRB-II, stop key light test.
3. Disconnect key ignition switch connector. (Scheme 106) Check connector, and clean or repair connector as necessary. Place DRB-II in voltmeter mode. Probe Pink/Light Blue wire of key-in light connector. If voltage is less than 10 volts, repair open Pink/Light Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).
4. If voltage is more than 10 volts, remove key light bulb. Inspect bulb and socket. If bulb and socket are not okay, repair replace as necessary. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If bulb and socket are okay, reconnect key-in light connector.
5. Access body controller. Body controller is located under left side of instrument panel. Ensure DRB-II is in voltmeter mode. Probe terminal No. 22 (Yellow/Red wire) of body controller Blue connector. If voltage is less than 10 volts, repair open Yellow/Red wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs). If voltage is more than 10 volts, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs).

TEST 44B - Checking For Key-In Light Short

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Disconnect body controller. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. If key light goes out, perform TEST 44C . If key light does not go out, repair short to ground in Yellow/Red wire. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS .

TEST 44C - Diagnosing Door Jamb Circuit For Ignition Key Light

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. Ensure all doors are closed.

1. Using DRB-II, read left front door jamb switch status. If DRB-II displays CIRCUIT OPEN, go to step 4). If DRB-II does not display CIRCUIT OPEN, disconnect left front door jamb switch. Check connector condition and clean or repair connector as necessary. If DRB-II displays CIRCUIT OPEN, replace left front door jamb switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If DRB-II does not display CIRCUIT OPEN, turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
3. Probe terminal No. 13 (Black/Light Blue) of body controller Blue connector. If resistance is less than 10 ohms, repair short to ground in Black/Light Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 10 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If DRB-II displays CIRCUIT OPEN in step 1), disconnect left front door jamb switch. Check connector, and clean or repair connector as necessary. Connect a jumper wire between Black and Black/light Blue wires of left front door jamb switch connector. If DRB-II displays CIRCUIT CLOSED, replace left front door switch.
5. If DRB-II does not display CIRCUIT CLOSED, disconnect jumper wire. Connect a jumper wire between Black/Light Blue wire of left front door switch connector and ground. If DRB-II displays CIRCUIT CLOSED, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, disconnect jumper wire.
6. Access body controller. Body controller is located under left side of instrument panel. Connect a jumper wire between terminal No. 13 (Black/Light Blue wire) at wiring harness side of body controller Blue connector and ground.
7. If DRB-II displays CIRCUIT CLOSED, repair open Black/Light Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 45A - Diagnosing Liftgate Release

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. Ensure liftgate mechanical linkage is operating properly before proceeding with test.

1. Press liftgate release button. If liftgate opens, perform «TEST 45B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-45b-diagnosing-liftgate-release) . If liftgate does not open, remove and inspect fuse No. 3 from fuse block. If fuse is blown, repair short to ground in Pink wire between fuse No. 3 and body controller connector. Replace fuse No. 3. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If fuse is okay, reinstall fuse No. 3. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Put DRB-II in voltmeter mode. Probe terminal No. 8 (Pink wire) of body controller Blue connector.
3. If voltage is more than 10 volts, perform «TEST 45C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-45c-diagnosing-liftgate-release) . If voltage is less than 10 volts, remove fuse No. 3. Using an external ohmmeter, check resistance of Pink wire between terminal No. 8 of body controller Blue connector and connector to fuse No. 3. in fuse block. If resistance is more than 5 ohms, repair open Pink wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, short to ground in Pink wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 45B - Diagnosing Liftgate Release

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to ON position with engine off. Set parking brake. Place transmission gear selector in REVERSE or DRIVE position. Press liftgate switch. If liftgate solenoid did not actuate, liftgate system is functioning properly.
2. If liftgate solenoid actuated, disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Press liftgate switch. If liftgate solenoid actuated, repair short to ground in Brown/Light Blue wire between body controller Blue connector and liftgate switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
3. If liftgate solenoid did not actuate, shift lever may be misaligned. If vehicle is equipped with a A604/30TH transmission, check shift lever alignment and adjust as necessary. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If vehicle is not equipped with a A604/30TH transmission, verify shift indicator alignment using DRB-II. Align shifter as necessary. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 45C - Diagnosing Liftgate Release

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Reconnect body controller connector. Connect a jumper wire between terminal No. 9 (Brown/Light Blue wire) at wiring harness side of body controller Blue connector and ground. Press liftgate switch. If liftgate solenoid actuated, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If liftgate solenoid did not actuate, disconnect liftgate switch connector. Check connector, and clean or repair connector as necessary. Using an external ohmmeter, check resistance of Brown/Light Blue wire between terminals No. 1 of liftgate switch connector and No. 9 of body controller Blue connector.
3. If resistance is more than 5 ohms, repair open Brown/Light Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, put DRB-II in voltmeter mode. Probe terminal No. 6 (Black/Red wire) of liftgate switch connector. If voltage is less than 10 volts, repair Black/Red wire as necessary.
4. If voltage is more than 10 volts, reconnect liftgate switch connector. While pressing liftgate switch, probe terminal No. 5 (Light Green/Black wire) of liftgate switch connector. If voltage is less than 10 volts, replace liftgate switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If voltage is more than 10 volts, connect a jumper wire between terminals No. 5 (Light Green/Black wire) and No. 6 (Black/Red wire) of liftgate switch connector. Disconnect liftgate release solenoid connector. Connector is located at bottom of liftgate behind trim panel. Check connector, and clean or repair connector as necessary.
6. Connect a jumper wire between liftgate solenoid body and ground. If liftgate solenoid actuate, repair liftgate release solenoid connector and ground. If liftgate solenoid actuated, clean or repair release solenoid ground as necessary. If liftgate solenoid did not actuate, replace liftgate solenoid.

TEST 46A - Oil Pressure Sensor Circuit

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Check engine oil level, and top it off as necessary. If oil level is okay, using DRB-II stop electronic instrument cluster sequential segment test. Remove oil pressure sending unit, and connect an oil pressure gauge in its place. Start engine.
2. Allow engine to reach normal operating temperature and check oil pressure reading. If oil pressure is less than 5 psi (.4 kg/cm 2 ) at idle, check engine condition. See appropriate article in ENGINES Section. If oil pressure is more than 5 psi (.4 kg/cm 2 ) at idle, turn ignition switch to OFF position.
3. Remove oil pressure test gauge. Reinstall oil pressure sending unit. Check oil pressure sending unit connector condition and clean or repair connector as necessary. Reconnect oil pressure sending unit connector. Start engine. If instrument cluster is not equipped with an oil gauge, perform «TEST 46B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-46b-oil-pressure-sensor) .
4. If instrument panel is equipped with an oil pressure gauge, observe gauge. If oil gauge indicates zero oil pressure, perform «TEST 46C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-46c-oil-pressure-sensor) . If oil gauge indicates more than zero oil pressure, check if oil pressure gauge indicates maximum oil pressure. If oil pressure gauge indicates maximum oil pressure, go to step 7).
5. If oil pressure gauge indicates less than maximum oil pressure, turn ignition switch to OFF position. Disconnect electronic instrument cluster connector. Check connector, and clean or repair connector as necessary. Disconnect oil pressure sending unit.
6. Using an external ohmmeter, check resistance at Gray wire between terminal No. 8 of electronic instrument cluster connector and terminal No. 2 of oil pressure sending unit connector. If resistance is less than 5 ohms, replace oil pressure sending unit. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, repair open Gray wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
7. If oil pressure gauge indicates maximum oil pressure in step 4), turn ignition switch to OFF position. Disconnect oil pressure sending unit connector. Turn ignition switch to ON position. Using DRB-II, read oil pressure sending unit voltage. If DRB-II displays more than 8 volts, replace oil pressure sending unit. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
8. If DRB-II displays less than 8 volts, turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Put DRB-II in voltmeter mode.
9. Turn ignition switch to ON position. Probe terminal No. 6 (Dark Blue/White wire) of body controller Blue connector. If voltage is less than 10 volts, repair open Dark Blue/White wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is more than 10 volts, turn ignition switch to OFF position.
10. Put DRB-II in ohmmeter mode. Probe terminal No. 1 (Gray/Yellow wire) of pressure sending unit connector. If resistance is more than 5 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, repair short to ground in Gray/Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 46B - Oil Pressure Sensor Circuit

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. This test is for vehicles equipped with a base instrument cluster (without oil gauge).

Ensure engine is still running. Disconnect oil pressure sending unit connector. Check connector, and clean or repair connector as necessary. Check instrument cluster oil warning light. If oil warning light is off, replace oil pressure sending unit. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS . If oil warning light is on, repair short to ground in Gray wire. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS .

TEST 46C - Oil Pressure Sensor Circuit

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. This test is for vehicles equipped with an electronic instrument cluster.

1. Observe electronic instrument cluster. If oil warning indicator (oil can symbol) is flashing, go to step 5). If oil warning indicator is not flashing, turn engine off. Turn ignition switch to ON position. Disconnect oil pressure sending unit connector. Connect a jumper wire between terminal No. 1 (Gray/Yellow wire) of oil pressure sending unit connector and ground.
2. Using DRB-II, read oil pressure sending unit voltage. If DRB-II displays less than one volt, replace oil pressure sending unit. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays more than one volt, turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel.
3. Check connector, and clean or repair connector as necessary. Reconnect body controller Blue connector. Connect a jumper wire between terminal No. 11 (Gray/Yellow wire) at wiring harness side of body controller Blue connector and ground. Turn ignition switch to ON position.
4. If DRB-II displays less than one volt, repair open Gray/Yellow wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays more than one volt, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If oil warning indicator (oil can symbol) is flashing in step 1), turn engine off. Turn ignition switch to ON position. Disconnect oil pressure sending unit connector. Observe electronic instrument cluster. If oil warning indicator (oil can symbol) is not flashing, replace oil pressure sending unit. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
6. If oil warning indicator is flashing, turn ignition switch to OFF position. Disconnect electronic instrument cluster connector. Check connector, and clean or repair connector as necessary. Put DRB-II in ohmmeter mode.
7. Probe terminal No. 2 (Gray wire) of oil pressure sending unit connector. If resistance is more than 5 ohms, replace electronic instrument cluster. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, repair short to ground in Gray wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 47A - Diagnosing Seat Belt Warning Light Circuit

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to ON position. If seat belt warning light is on constantly, perform TEST 47B. If seat belt warning light is not on constantly, ensure left front seat belt is not fastened. Using DRB-II, read left seat belt switch status. If DRB-II does not display CIRCUIT CLOSED, perform «TEST 47C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-47c-checking-for-open) .
2. If DRB-II displays CIRCUIT CLOSED, fasten left front seat belt. If DRB-II does not display CIRCUIT OPEN, perform «TEST 47D»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-47d-checking-for-short) . If DRB-II displays CIRCUIT OPEN, actuate seat belt warning light test using DRB-II. If seat belt warning light flashes, retest system. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If seat belt warning light does not flash, turn ignition switch to OFF position.
3. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Turn ignition switch to ON position. Put DRB-II in voltmeter mode.
4. Probe terminal No. 23 (Dark Blue/Red wire) of body controller Blue connector. If voltage is less than 10 volts, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is more than 10 volts, remove and inspect fuse No. 15 from fuse block. If fuse is blown, go to step 8). If fuse is okay, turn ignition switch to ON position.
5. Probe Dark Blue wire (in fuse block) to fuse No. 15. If voltage is less than 10 volts, repair open Dark Blue wire between fuse No. 15 and ignition switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is more than 10 volts, remove driver warning light assembly from instrument cluster.
6. Remove and inspect seat belt warning light bulb. If bulb is open, repair open Dark Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If bulb is okay, using an external ohmmeter, check resistance of Dark Blue/Red wire between body controller Blue connector and seat belt warning light bulb.
7. If resistance is more than 5 ohms, repair open in Dark Blue/Red wire between body controller connector and seat belt warning light. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, repair open in Dark Blue/White wire between fuse No. 15 and seat belt warning light. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
8. If fuse is blown in step 4), put DRB-II in ohmmeter mode. Probe Dark Blue/White wire (in fuse block) to fuse No. 15. If resistance is less than 5 ohms, repair short to ground in Dark Blue/White wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, probe Dark Blue wire (in fuse block) to fuse No. 15.
9. If resistance is less than 5 ohms, repair short to ground in Dark Blue wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, remove driver warning light assembly from instrument cluster. Remove seat belt warning light bulb.
10. Probe terminal No. 23 (Dark Blue/Red wire) of body controller Blue connector. If resistance is less than 5 ohms, repair short to ground in Dark Blue/Red wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, replace fuse No. 15. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 47B - Checking For Short In Seat Belt Warning Light Circuit

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
2. Turn ignition switch to ON position. If seat belt warning light is off, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If seat belt warning light is on, repair short to ground in Dark Blue/Red wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 47C - Checking For Open In Seat Belt Switch Circuit

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Disconnect left front seat belt switch connector. Connector is located under left front seat. Connect a jumper wire between Light Green/Red and Black wires of seat belt switch connector. If DRB-II displays CIRCUIT CLOSED, replace left front seat belt switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, disconnect jumper wire.
2. Connect a jumper wire between Light Green/Red wire of seat belt switch connector and ground. If DRB-II displays CIRCUIT CLOSED, repair open Light Green/Red wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 47D - Checking For Short In Seat Belt Switch Circuit

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Disconnect left front seat belt switch connector. Connector is located under left front seat. If DRB-II does not display CIRCUIT CLOSED, replace left front seat belt switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays CIRCUIT CLOSED, turn ignition switch to OFF position.
2. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Put DRB-II in ohmmeter mode. Probe terminal No. 14 (Light Green/Red wire) of body controller Blue connector.
3. If resistance is more than 5 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, repair short to ground in Light Green/Red wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 48A - Repairing Faulty Washer Fluid Level Switch

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Check washer fluid level. If washer fluid is not full, add fluid as necessary. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If washer fluid is full, using DRB-II, read washer fluid switch status. If DRB-II displays CIRCUIT OPEN, go to step 4). If DRB-II does not display CIRCUIT OPEN, disconnect washer fluid level switch connector.
2. If DRB-II displays CIRCUIT OPEN, replace washer fluid level switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT OPEN, turn ignition switch to OFF position. Disconnect body controller Natural connector. Body controller is located under left side of instrument panel.
3. Check connector, and clean or repair connector as necessary. Place DRB-II in ohmmeter mode. Probe terminal No. 19 (Black/Tan wire) of body controller Natural connector. If resistance is less than 5 ohms, repair short to ground in Black/Tan wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If DRB-II displays OPEN CIRCUIT in step 1), disconnect washer fluid level switch connector. Connect a jumper wire between Black/Tan and Black wires of washer fluid level switch connector. If DRB-II displays CIRCUIT CLOSED, replace washer fluid level switch. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, disconnect jumper wire.
5. Connect a jumper wire between Black/Tan wire of washer fluid level switch connector and ground. If DRB-II displays CIRCUIT CLOSED, repair open Black wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, access body controller.
6. Body controller is located under left side of instrument panel. Connect a jumper wire between terminal No. 19 (Black/Tan wire) at body controller Natural connector and ground. If DRB-II displays CIRCUIT CLOSED, repair open Black/Tan wire. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display CIRCUIT CLOSED, replace body controller. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

VERIFICATION TEST - VERIFICATION OF REPAIRS - VERIFICATION OF REPAIRS

Inspect vehicle to ensure all engine components are connected. Reassemble and reconnect components as necessary. Ensure all repairs have been made. Actuate system that was not operational. If system operates properly, repair is complete. If system does not operate properly, perform TEST 1A: IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS .

TEST 1A - BLANK DRB-II MESSAGE SCREEN

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Disconnect DRB-II. Using an external voltmeter, check voltage at terminal No. 5 (Red wire) at Chrysler Collision Detection (CCD) bus diagnostic connector. Connector is located underneath dash at left side of steering column. If voltage is more than 10 volts, perform «TEST 1B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-1b-blank-drb-ii-message) . If voltage is less than 10 volts, go to next step.
2. Remove fuse No. 23 from fuse block. Inspect fuse. If fuse is blown, go to next step. If fuse is not blown, using an external voltmeter, check voltage available to fuse that was removed. If voltage is more than 10 volts, repair open wire between fuse block and CCD bus diagnostic connector. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is less than 10 volts, repair open wire to fuse block. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
3. Using an external ohmmeter, check resistance between fuse output terminal (at fuse block) and ground. If resistance is less than 5 ohms, repair short to ground in wiring. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, replace blown fuse. Perform «VERIFICATION TEST - VERIFICATION OF REPAIRS»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 1B - BLANK DRB-II MESSAGE SCREEN

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Using external ohmmeter, check resistance between terminal No. 3 (Black/Light Green wire) at CCD bus diagnostic connector and ground. If resistance is more than 5 ohms, repair open in wiring to terminal No. 3. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If resistance is less than 5 ohms, test DRB-II. Refer to «TEST 5A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-5a-testing-drb-ii) . If DRB-II is good, replace DRB-II adapter cable. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II is defective, replace DRB-II. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 2A - RAM TEST ERROR

If DRB-II does not display RAM FAILURE, return to test that sent you here. If DRB-II displays RAM FAILURE, reboot DRB-II by reinstalling DRB-II cartridge. If DRB-II does not display RAM FAILURE, return to test that sent you here. If DRB-II displays RAM FAILURE, replace DRB-II cartridge.

TEST 3A - ROM CHECKSUM ERROR

If DRB-II does not display ROM FAILURE, return to test that sent you here. If DRB-II displays ROM FAILURE, reboot DRB-II by reinstalling DRB-II cartridge. If DRB-II does not display ROM FAILURE, return to test that sent you here. If DRB-II displays ROM FAILURE, replace DRB-II.

TEST 4A - KEYPAD TEST FAILURE MESSAGE

Note. DO NOT touch DRB-II keypad during following test.

If DRB-II does not display KEYPAD TEST FAILURE, return to test that sent you here. If DRB-II displays KEYPAD TEST FAILURE, reboot DRB-II by reinstalling DRB-II cartridge. If DRB-II does not display KEYPAD TEST FAILURE, return to test that sent you here. If DRB-II displays KEYPAD TEST FAILURE, replace DRB-II.

TEST 5A - TESTING DRB-II

Although only manufacturer is equipped to physically test DRB-II, you should be able to determine state of your DRB-II by using following substitution techniques and process of elimination.

1. Turn ignition switch to OFF position. Disconnect DRB-II adapter cable and DRB-II cartridge. Locate a second vehicle with identical equipment to original vehicle. Connect DRB-II assembly to second vehicle, and turn ignition switch to ON position. Use DRB-II as it was used on first vehicle. If DRB-II results are not as before, problem is not DRB-II. Return to test that sent you here.
2. If same problem still exists as before substituting vehicles, DRB-II has a defective adapter cable or DRB-II cartridge. If a second DRB-II cartridge for the same vehicle is available, try substituting DRB-II cartridge. If DRB-II now functions correctly, original DRB-II cartridge is defective. Use good DRB-II cartridge, and return to test that sent you here.
3. If DRB-II still does not function correctly, substitute a second DRB-II adapter cable. If a second DRB-II adapter cable of same type is not available, use a SCI or CCD adapter cable. If DRB-II now functions correctly, DRB-II has a defective adapter cable. Use good adapter cable, and return to test that sent you here.
4. If DRB-II still does not work, substitute a second DRB-II. If a second DRB-II is not available, send DRB-II in for repair. If DRB-II now functions correctly, original DRB-II is defective. Use good DRB-II, and return to test that sent you here.

TEST 7A - BUS FAILURE MESSAGES

Select error message and corresponding test from BUS FAILURE MESSAGES table. Proceed to indicated test. Each specific error message is diagnosed by following a specific testing sequence. Performing all tests is not necessary to diagnose an individual error message.

BUS FAILURE MESSAGES

TEST 8A - SHORT TO BATTERY ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Using DRB-II, indicate whether a module is present or not. Disconnect Electronic Automatic Transaxle (EATX) controller connector. Connector is located on firewall on right side of engine compartment. Check connector, and clean or repair connector as necessary. If DRB-II does not display SHORT TO BATTERY, replace EATX controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays SHORT TO BATTERY, disconnect Single Board Engine Controller (SBEC) connector. Connector is located in engine compartment. Check connector, and clean or repair connector as necessary.
2. If DRB-II does not display SHORT TO BATTERY, replace SBEC. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays SHORT TO BATTERY, connect a jumper wire between body controller case and ground. Body controller is located under left side of instrument panel. If DRB-II does not display SHORT TO BATTERY, repair open Black/Light Green wire between terminal No. 19 of body controller Blue connector and ground.
3. If DRB-II displays SHORT TO BATTERY, disconnect body controller Blue connector. Body controller is located under left side of instrument panel. DRB-II. If DRB-II does not display SHORT TO BATTERY, replace body controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays SHORT TO BATTERY, disconnect instrument cluster 14-pin connector.
4. If DRB-II does not display SHORT TO BATTERY, perform «TEST 8B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-8b-short-to-battery) . If DRB-II displays SHORT TO BATTERY, disconnect compass/mini-trip module connector. Connector is located in overhead console. Check connector, and clean or repair connector as necessary. If DRB-II does not display SHORT TO BATTERY, perform «TEST 8C»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-8c-short-to-battery) .
5. If DRB-II displays SHORT TO BATTERY, disconnect DRB-II. Using an external voltmeter, measure voltage between terminal No. 1 (Violet/Brown wire) of CCD bus connector and ground. If voltage is more than 10 volts, repair short to voltage in Violet/Brown wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is less than 10 volts, repair short to voltage in White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 8B - SHORT TO BATTERY ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Turn ignition switch to OFF position. Put DRB-II in ohmmeter mode. Probe terminal No. 7 (Black/Light Green wire) of instrument cluster connector. If resistance is less than 5 ohms, replace electronic instrument cluster. Perform VERIFICATION TEST . If resistance is more than 5 ohms, repair open Black/Green wire. Perform VERIFICATION TEST .

TEST 8C - SHORT TO BATTERY ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Turn ignition switch to OFF position. Probe terminal No. 5 (Black/Light Green wire) of compass/mini-trip module connector. If resistance is less than 5 ohms, replace compass/mini-trip module. Perform VERIFICATION TEST . If resistance is more than 5 ohms, repair open Black/Green wire. Perform VERIFICATION TEST .

TEST 9A - SHORT TO 5 VOLTS ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Using DRB-II, indicate whether a module is present or not. Disconnect Electronic Automatic Transaxle (EATX) controller connector. Connector is located on firewall on right side of engine compartment. Check connector, and clean or repair connector as necessary. If DRB-II does not display SHORT TO 5 VOLTS, replace EATX controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays SHORT TO 5 VOLTS, disconnect Single Board Engine Controller (SBEC) connector.
2. Check connector, and clean or repair connector as necessary. Using an external ohmmeter, check resistance between terminals No. 6 (Violet/White wire) and No. 26 (Violet/Brown wire) at SBEC connector. If resistance is less than 1000 ohms, repair short in Violet/Brown and Violet/White wires. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
3. If resistance is more than 1000 ohms, check resistance between terminals No. 46 (White/Black wire) and No. 6 (Violet/White wire) of SBEC connector. If resistance is less than 1000 ohms, repair short in White/Black and Violet/Black wires. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If resistance is more than 1000 ohms, turn ignition switch to ON position with engine off. If DRB-II does not display SHORT TO 5 VOLTS, replace SBEC. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays SHORT TO 5 VOLTS, disconnect compass/mini-trip module connector (if equipped). Connector is located in overhead console.
5. If DRB-II does not display SHORT TO 5 VOLTS, replace compass/mini-trip module. If DRB-II displays SHORT TO 5 VOLTS, disconnect body controller Blue connector. Body controller is located under left side of instrument panel.
6. If DRB-II does not display SHORT TO 5 VOLTS, replace body controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays SHORT TO 5 VOLTS, replace instrument cluster. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 10A - SHORT TO GROUND ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Using DRB-II, indicate whether a module is present. Disconnect Electronic Automatic Transaxle (EATX) controller connector. Connector is located on firewall on right side of engine compartment. Check connector, and clean or repair connector as necessary.
2. If DRB-II does not display SHORT TO GROUND, replace EATX controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays SHORT TO GROUND, disconnect Single Board Engine Controller (SBEC) connector. Check connector, and clean or repair connector as necessary.
3. If DRB-II does not display SHORT TO GROUND, replace SBEC. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays SHORT TO GROUND, disconnect body controller Blue connector. Body controller is located under left side of instrument panel. If DRB-II does not display SHORT TO GROUND, replace body controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If DRB-II displays SHORT TO GROUND, disconnect compass/mini-trip module connector (if equipped). Connector is located in overhead console. Check connector condition and clean or repair connector as necessary. If DRB-II does not display SHORT TO GROUND, replace compass/mini-trip module. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If DRB-II displays SHORT TO GROUND, disconnect DRB-II. Using an external ohmmeter, check resistance between terminal No. 1 (Violet/Brown wire) of CCD bus diagnostic connector and ground. If resistance is less than 5 ohms, repair short to ground in Violet/Brown wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, repair short to ground in White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 11A - BUS (+) & (-) SHORTED TOGETHER ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. A common cause of this message is a low battery condition

1. Using DRB-II, indicate whether a module is present. Disconnect Electronic Automatic Transaxle (EATX) controller connector. Connector is located on firewall on right side of engine compartment. Check connector, and clean or repair connector as necessary. If DRB-II does not display BUS (+) and BUS (-) SHORTED TOGETHER, replace EATX controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays BUS (+) and BUS (-) SHORTED TOGETHER, disconnect Single Board Engine Controller (SBEC) connector.
2. If DRB-II does not display BUS (+) and BUS (-) SHORTED TOGETHER, replace SBEC. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays BUS (+) and BUS (-) SHORTED TOGETHER, disconnect body controller Blue connector. Body controller is located under left side of instrument panel. If DRB-II does not display BUS (+) and BUS (-) SHORTED TOGETHER, replace body controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
3. If DRB-II displays BUS (+) and BUS (-) SHORTED TOGETHER, disconnect compass/mini-trip module connector (if equipped). Connector is located in overhead console. If DRB-II does not display BUS (+) and BUS (-) SHORTED TOGETHER, replace compass/mini-trip module. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If DRB-II displays BUS (+) and BUS (-) SHORTED TOGETHER, disconnect instrument cluster. Check connector condition and clean or repair connector as necessary. If DRB-II does not display BUS (+) and BUS (-) SHORTED TOGETHER, replace instrument cluster. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II displays BUS (+) and BUS (-) SHORTED TOGETHER, disconnect DRB-II.
5. Using external ohmmeter, check resistance between terminals No. 1 (Violet/Brown wire) and No. 6 (White/Black wire) of CCD bus diagnostic connector. If resistance is less than 20 ohms, repair short between Violet/Black and White/Black wires. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 20 ohms, test DRB-II. Refer to «TEST 5A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-5a-testing-drb-ii) .

TEST 12A - NO TERMINATION ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
2. Using an external ohmmeter, check resistance between terminals No. 7 and 20 at body controller. If resistance is not 100-140 ohms, replace body controller and go to next step. If resistance is 100-140 ohms, go to next step.
3. Check resistance at Violet/Brown wire between terminal No. 7 of body controller Blue connector and terminal No. 1 at CCD bus diagnostic connector. If resistance is more than 5 ohms, repair open Violet/Brown wire and go to next step. If resistance is less than 5 ohms, go to next step.
4. Check resistance of White/Black wire between terminal No. 20 of body controller Blue connector and terminal No. 6 at CCD bus diagnostic connector. If resistance is more than 5 ohms, repair open White/Black wire to Violet/Brown wire and go to next step. If resistance is less than 5 ohms, go to next step.
5. Disconnect Single Board Engine Controller (SBEC) connector. Check connector, and clean or repair connector as necessary. Using an external ohmmeter, check resistance between terminals No. 26 and 46 at SBEC. If resistance is not 100-140 ohms, replace SBEC and go to next step. If resistance is 100-140 ohms, go to next step.
6. Check resistance at Violet/Brown wire between terminal No. 1 at CCD bus diagnostic connector and terminal No. 26 at SBEC connector. If resistance is more than 5 ohms, repair open Violet/Brown wire and go to next step. If resistance is less than 5 ohms, go to next step.
7. Check resistance at White/Black wire between terminal No. 6 at CCD bus diagnostic connector and terminal No. 20 at body controller Blue connector. If resistance is more than 5 ohms, repair open White/Black wire and go to next step. If resistance is less than 5 ohms, go to next step.
8. Test DRB-II. Refer to «TEST 5A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-5a-testing-drb-ii) . Replace DRB-II and/or adapter cable as necessary. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II is good, perform «TEST 20A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-20a-no-response-messages) .

TEST 13A - BUS BIAS LEVEL TOO LOW ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Note. A common cause of this failure is ignition switch in OFF position.

1. If ignition switch was in OFF position when performing TEST 7A, turn ignition switch to ON position with engine off. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If ignition switch was not in OFF position when performing TEST 7A, check if battery is fully charged. If battery is not fully charged, charge battery. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If battery is fully charged, disconnect DRB-II. Using an external volt-meter, check voltage at terminal No. 1 (Violet/Brown wire) at CCD bus diagnostic connector. If voltage is not 2.1-2.7 volts, go to step 4).
3. If voltage is 2.1-2.7 volts, check voltage at terminal No. 6 (White/Black wire) at CCD bus diagnostic connector. If voltage is not 2.1-2.7 volts, perform TEST 13B. If voltage is 2.1-2.7 volts, test DRB-II. Refer to «TEST 5A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-5a-testing-drb-ii) . Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If voltage at Violet/Brown wire is not 2.1-2.7 volts in step 2), turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Using an external ohmmeter, check resistance between terminals No. 7 and 20 at body controller.
5. If resistance is not 100-140 ohms, replace body controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is 100-140 ohms, check resistance at Violet/Brown wire between terminal No. 1 at CCD bus diagnostic connector and terminal No. 7 at body controller Blue connector. If resistance is more than 5 ohms, repair open Violet/Brown. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less that 5 ohms, go to next step.
6. Disconnect Single Board Engine Controller (SBEC) connector. Check connector, and clean or repair connector as necessary. Check resistance between terminals No. 26 and 46 of SBEC. If resistance is not 100-140 ohms, replace SBEC. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
7. If resistance is 100-140 ohms, check resistance at Violet/Brown wire between terminal No. 1 at CCD bus diagnostic connector and terminal No. 26 at SBEC connector. If resistance is more than 5 ohms, perform «TEST 20A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-20a-no-response-messages) . If resistance is less than 5 ohms, repair open Violet/Brown wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 13B - BUS BIAS LEVEL TOO LOW ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Using an external ohmmeter, check resistance between terminals No. 7 and 20 of body controller. If resistance is not 100-140 ohms, replace body controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If resistance is 100-140 ohms, check resistance at White/Black wire between terminal No. 6 at CCD bus diagnostic connector and terminal No. 20 at body controller Blue connector. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, go to next step.
3. Disconnect Single Board Engine Controller (SBEC) connector. Check connector, and clean or repair connector as necessary. Using an external ohmmeter, check resistance between terminals No. 26 and 46 at SBEC. If resistance is not 100-140 ohms, replace SBEC. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If resistance is 100-140 ohms, check resistance at White/Black wire between terminal No. 6 at CCD bus diagnostic connector and terminal No. 46 at SBEC connector. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, perform «TEST 20A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-20a-no-response-messages) .

TEST 14A - BUS BIAS LEVEL TOO HIGH ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to ON position with engine off. Disconnect DRB-II. Using an external voltmeter, check voltage at terminal No. 1 (Violet/Brown wire) of CCD bus diagnostic connector. If voltage is not 2.1-2.7 volts, go to step 3).
2. If voltage is 2.1-2.7 volts, check voltage at terminal No. 6 (White/Black wire) at CCD bus diagnostic connector. If voltage is not 2.1-2.7 volts, perform «TEST 14B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-14b-bus-bias-level) . If voltage is 2.1-2.7 volts, test DRB-II. Perform «TEST 5A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-5a-testing-drb-ii) . Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
3. If voltage at Violet/Brown wire is not 2.1-2.7 volts in step 1), turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
4. Using an external ohmmeter, check resistance between terminals No. 7 and 20 at body controller. If resistance is not 100-140 ohms, replace body controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is 100-140 ohms, go to next step.
5. Check resistance at Violet/Brown wire between terminal No. 1 at CCD bus diagnostic connector and terminal No. 7 at body controller connector. If resistance is more than 5 ohms, repair open Violet/Brown wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, go to next step.
6. Disconnect Single Board Engine Controller (SBEC) connector. Check connector, and clean or repair connector as necessary. Check resistance between terminals No. 26 and 46 of SBEC. If resistance is not 100-140 ohms, replace SBEC. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
7. If resistance is 100-140 ohms, check resistance at Violet/Brown wire between terminal No. 1 at CCD bus diagnostic connector and terminal No. 26 at SBEC connector. If resistance is more than 5 ohms, perform «TEST 20A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-20a-no-response-messages) . If resistance is less than 5 ohms, repair open Violet/Brown wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 14B - BUS BIAS LEVEL TOO HIGH ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Using an external ohmmeter, check resistance between terminals No. 7 and 20 at body controller.
2. If resistance is not 100-140 ohms, replace body controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is 100-140 ohms, check resistance at White/Black wire between terminal No. 6 at CCD bus diagnostic connector and terminal No. 20 at body controller Blue connector. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, go to next step.
3. Disconnect Single Board Engine Controller (SBEC) connector. Check connector condition and clean or repair connector as necessary. Using an external ohmmeter, check resistance between terminals No. 26 and 46 at SBEC. If resistance is not 100-140 ohms, replace SBEC. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If resistance is 100-140 ohms, check resistance at White/Black wire between terminal No. 6 at CCD bus diagnostic connector and terminal No. 46 at SBEC connector. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, perform «TEST 20A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-20a-no-response-messages) .

TEST 15A - NO BUS BIAS ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. If DRB-II is not connected to correct diagnostic connector, connect DRB-II to CCD bus diagnostic connector. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II is connected to CCD bus diagnostic connector, turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
2. Using external ohmmeter, check resistance between terminals No. 7 and 20 at body controller. If resistance is not 100-140 ohms, replace body controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is 100-140 ohms, go to next step.
3. Check resistance at Violet/Brown wire between terminal No. 1 at CCD bus diagnostic connector and terminal No. 7 at body controller Blue connector. If resistance is more than 5 ohms, repair open Violet/Brown wire and go to next step. If resistance is less than 5 ohms, go to next step.
4. Check resistance of White/Black wire between terminal No. 6 at CCD bus diagnostic connector and terminal No. 20 at body controller Blue connector. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, go to next step.
5. Disconnect Single Board Engine Controller (SBEC) connector. Check connector, and repair or replace connector as necessary. Using an external ohmmeter, check resistance between terminals No. 26 and 46 at SBEC.
6. If resistance is not 100-140 ohms, replace SBEC. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is 100-140 ohms, check resistance at Violet/Brown wire between terminal No. 1 at CCD bus diagnostic connector and terminal No. 26 at SBEC connector. If resistance is more than 5 ohms, repair open Violet/Brown wire and go to next step. If resistance is less than 5 ohms, go to next step.
7. Check resistance at White/Black wire between terminal No. 6 at CCD bus diagnostic connector and terminal No. 46 at SBEC connector. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, test DRB-II. Refer to «TEST 5A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-5a-testing-drb-ii) .
8. Replace DRB-II and/or adapter cable as necessary. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II and adapter cable are good, perform «TEST 20A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-20a-no-response-messages) .

TEST 16A - BUS (+) OPEN ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. If DRB-II is not connected to correct diagnostic connector, connect DRB-II to CCD bus diagnostic connector. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II is connected to CCD bus diagnostic connector, turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
2. Using external ohmmeter, check resistance between terminals No. 7 and 20 at body controller. If resistance is not 100-140 ohms, replace body controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is 100-140 ohms, check resistance at Violet/Brown wire between terminal No. 1 at CCD bus diagnostic connector and terminal No. 7 at body controller Blue connector. If resistance is more than 5 ohms, repair open Violet/Brown wire and go to next step. If resistance is less than 5 ohms, go to next step.
3. Using an external ohmmeter, check resistance of Violet/Black wire between terminals No. 7 of body controller Blue connector and No. 1 of CCD bus diagnostic connector. If resistance is more than 5 ohms, repair open Violet/Black wire and go to next step. If resistance is less than 5 ohms, go to next step.
4. Check resistance of White/Black wire between terminals No. 6 at CCD bus diagnostic connector and No. 20 at body controller Blue connector. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, go to next step.
5. Disconnect Single Board Engine Controller (SBEC) connector. Check connector, and clean or repair connector as necessary. Using an external ohmmeter, check resistance between terminals No. 26 and 46 at SBEC.
6. If resistance is not 100-140 ohms, replace SBEC. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is 100-140 ohms, check resistance at Violet/Brown wire between terminal No. 1 at CCD bus diagnostic connector and terminal No. 26 at SBEC connector. If resistance is more than 5 ohms, repair open Violet/Brown wire and go to next step. If resistance is less than 5 ohms, go to next step.
7. Check resistance at White/Black wire between terminals No. 6 at CCD bus diagnostic connector and No. 46 at SBEC connector. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, test DRB-II. Refer to «TEST 5A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-5a-testing-drb-ii) .
8. If DRB-II and/or adapter cable is defective, replace DRB-II or adapter cable as necessary. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II and adapter cable are good, perform «TEST 20A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-20a-no-response-messages) .

TEST 17A - BUS (-) OPEN ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. If DRB-II is not connected to correct diagnostic connector, connect DRB-II to CCD bus diagnostic connector. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II is connected to CCD bus diagnostic connector, turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
2. Using external ohmmeter, check resistance between terminals No. 7 and 20 at body controller. If resistance is not 100-140 ohms, replace body controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is 100-140 ohms, check resistance at Violet/Brown wire between terminals No. 1 at CCD bus diagnostic connector and No. 7 at body controller Blue connector. If resistance is more than 5 ohms, repair open Violet/Brown wire and go to next step. If resistance is less than 5 ohms, go to next step.
3. Check resistance of White/Black wire between terminals No. 6 at CCD bus diagnostic connector and No. 20 at body controller Blue connector. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, go to next step.
4. Disconnect Single Board Engine Controller (SBEC) connector. Check connector condition and clean or repair connector as necessary. Using external ohmmeter, check resistance between terminals No. 26 and 46 at SBEC. If resistance is not 100-140 ohms, replace SBEC. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is 100-140 ohms, go to next step.
5. Check resistance at Violet/Brown wire between terminal No. 1 at CCD bus diagnostic connector and terminal No. 26 at SBEC connector. If resistance is more than 5 ohms, repair open Violet/Brown wire and go to next step. If resistance is less than 5 ohms, go to next step.
6. Check resistance at White/Black wire between terminal No. 6 at CCD bus diagnostic connector and terminal No. 46 at SBEC connector. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, test DRB-II. Refer to «TEST 5A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-5a-testing-drb-ii) .
7. Replace DRB-II and/or adapter cable as necessary. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II and adapter cable are good, perform «TEST 20A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-20a-no-response-messages) .

TEST 18A - BUS (+) & BUS (-) OPEN ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. If DRB-II is not connected to correct diagnostic connector, connect DRB-II to CCD bus diagnostic connector. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II is connected to CCD bus diagnostic connector, turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
2. Using external ohmmeter, check resistance between terminals No. 7 and 20 at body controller. If resistance is not 100-140 ohms, replace body controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is 100-140 ohms, check resistance at Violet/Brown wire between terminals No. 1 at CCD bus diagnostic connector and No. 7 at body controller Blue connector. If resistance is more than 5 ohms, repair open Violet/Brown wire and go to next step. If resistance is less than 5 ohms, go to next step.
3. Check resistance of White/Black wire between terminals No. 6 at CCD bus diagnostic connector and No. 20 at body controller Blue connector. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, go to next step.
4. Disconnect Single Board Engine Controller (SBEC) connector. Check connector, and clean or repair connector as necessary. Using an external ohmmeter, check resistance between terminals No. 26 and 46 at SBEC. If resistance is not 100-140 ohms, replace SBEC. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is 100-140 ohms, go to next step.
5. Check resistance at Violet/Brown wire between terminal No. 1 at CCD bus diagnostic connector and terminal No. 26 at SBEC connector. If resistance is more than 5 ohms, repair open Violet/Brown wire and go to next step. If resistance is less than 5 ohms, go to next step.
6. Check resistance at White/Black wire between terminal No. 6 at CCD bus diagnostic connector and terminal No. 46 at SBEC connector. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, test DRB-II. Refer to «TEST 5A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-5a-testing-drb-ii) .
7. Replace DRB-II and/or adapter cable as necessary. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II and adapter cable are good, perform «TEST 20A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-20a-no-response-messages) .

TEST 19A - NOT RECEIVING BUS MESSAGES CORRECTLY ON BUS

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. If DRB-II is not connected to correct diagnostic connector, connect DRB-II to CCD bus diagnostic connector. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II is connected to CCD bus diagnostic connector, turn ignition switch to OFF position. Disconnect instrument cluster connector. Check connector, and clean or repair connector as necessary.
2. Using an external ohmmeter, check resistance of White/Black wire between terminals No. 6 of CCD bus diagnostic connector and No. 9 at instrument cluster connector. If resistance more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
3. If resistance is less than less 5 ohms, reconnect instrument cluster connector. Turn ignition switch to ON position. If DRB-II displays NOT RECEIVING BUS MESSAGES CORRECTLY, replace instrument cluster. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If DRB-II does not display NOT RECEIVING BUS MESSAGES CORRECTLY, perform «TEST 20A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-20a-no-response-messages) .

TEST 20A - NO RESPONSE MESSAGES

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Three ways exist to get to this test

1. DRB-II is currently connected to CCD bus diagnostic connector and you have selected ENGINE from main menu. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. A self-diagnostic test brought you here.
3. DRB-II displayed NO RESPONSE message when an attempt was made to read information from a module. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

Note. Monitoring SBEC for an ACTIVE ON BUS message is only possible at CCD bus diagnostics connector. Monitor SBEC for a NO RESPONSE message by selecting SYSTEM TEST under any module test selection menu.

If step 1) is reason you came to this test, select either an appropriate selection from DRB-II menu (BODY, ABS OR TRANSMISSION) or, if you want to perform engine tests, connect DRB-II to engine diagnostic connector located in engine compartment.

If step 2) is reason you came to this test, verify all modules on vehicle are accessible. Perform tests as necessary. See NO RESPONSE MESSAGE table.

NO RESPONSE MESSAGE

If step 3) is reason you came to this test, perform test as necessary in order that they appear. See NO RESPONSE MESSAGE table. DRB-II will also show a NO RESPONSE message if you try to access a module that is not on vehicle.

TEST 21A - TESTING ELECTRONIC INSTRUMENT CLUSTER FOR NO RESPONSE

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to OFF position. Disconnect electronic instrument cluster connector. Check connector, and clean or repair connector as necessary. Disconnect DRB-II. Using an external ohmmeter, check resistance of Violet/Brown wire between terminal No. 1 at CCD bus diagnostic connector and terminal No 10 at instrument cluster connector.
2. If resistance is more than 5 ohms, repair open Violet/Brown wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, check resistance at White/Black wire between terminal No. 6 at CCD bus diagnostic connector and terminal No. 9 at instrument cluster connector. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
3. If resistance is less than 5 ohms, reconnect DRB-II. Put DRB-II in ohmmeter mode. Probe terminal No. 7 (Black/Light Green wire) at instrument cluster connector. If resistance is more than 5 ohms, repair open Black/Light Green wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If resistance is less than 5 ohms, turn ignition switch to ON position. Put DRB-II in voltmeter mode. Probe terminal No. 11 (Dark Blue/White wire) at instrument cluster connector. If voltage is more than 10 volts, perform TEST 21B.
5. If voltage is less than 10 volts, remove and inspect fuse No. 15 from fuse block. If fuse is blown, go to next step. If fuse is okay, probe input terminal to fuse No. 15 (Dark Blue wire) in fuse block. If voltage is more than 10 volts, repair open Dark Blue/White wire between fuse block and instrument cluster connector. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is less than 10 volts, repair open Dark Blue wire to fuse block. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
6. Turn ignition switch to OFF position. Replace fuse No. 15. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector condition and clean or repair connector as necessary. Disconnect warning indicator module connector. Module is located above instrument cluster. Check connector, and clean or repair connector as necessary.
7. Turn ignition switch to ON position. Remove and inspect fuse No. 15. If fuse is blown, repair short to ground in Dark Blue/White wire. After repair is completed, perform «TEST 21B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-21b-testing-electronic-instrument) . If fuse is okay, turn ignition switch to OFF position. Reconnect warning indicator module connector. Turn ignition switch to ON position.
8. Remove and recheck fuse No. 15. If fuse is blown, replace warning indicator module. After repair is completed, perform «TEST 21B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-21b-testing-electronic-instrument) . If fuse is okay, turn ignition switch to OFF position. Reconnect instrument cluster connector. Turn ignition switch to ON position. Remove and recheck fuse No. 15. If fuse is blown, replace instrument cluster. After repair is completed, perform «TEST 21B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-21b-testing-electronic-instrument) . If fuse is okay, turn ignition switch to OFF position.
9. Reconnect body controller Blue connector. Turn ignition switch to ON position. Remove and recheck fuse No. 15. If fuse is blown, replace body controller. After repair is completed, perform «TEST 21B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-21b-testing-electronic-instrument) . If fuse is okay, perform «TEST 21B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-21b-testing-electronic-instrument) .

TEST 21B - TESTING ELECTRONIC INSTRUMENT CLUSTER FOR NO RESPONSE

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Probe terminal No. 2 (Pink wire) of instrument cluster connector. If voltage is more than 10 volts, replace instrument cluster (if not already replaced). Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is less than 10 volts, replace and inspect fuse No. 3 from fuse block. If fuse is blown, go to step 3).
2. If fuse is okay, probe output terminal (in fuse block) from fuse No. 3. If voltage is more than 10 volts, repair open Pink wire between fuse block and instrument cluster connector. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is less than 10 volts, repair open Black/Red wire to fuse block. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . NOTE: Ensure trunk, hood and all doors are closed. Tape glove box light switch closed or disconnect switch.
3. If fuse No. 3 is blown in step 1), put DRB-II in ohmmeter mode. Probe output terminal (in fuse block) from fuse No. 3. If resistance is more than 5 ohms, go to step 5). If resistance is less than 5 ohms, disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
4. Reprobe output terminal from fuse No. 13. If resistance is more than 5 ohms, replace body controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, repair short to ground in fuse No. 3 output circuit. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If resistance is more than 5 ohms at fuse No. 3 output terminal instep 3), reconnect electronic instrument cluster connector. Probe output terminal (in fuse block) from fuse No. 3. If resistance is more than 5 ohms, replace fuse No. 3. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, replace instrument cluster. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 22A - TESTING COMPASS/MINI-TRIP MODULE FOR NO RESPONSE

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to OFF position. Disconnect compass/mini-trip module connector. Connector is located behind overhead console. Check connector, and clean or repair connector as necessary. Disconnect DRB-II. Using an external ohmmeter, check resistance at Violet/Brown wire between terminals No. 1 at CCD bus diagnostic connector and No. 9 at compass/mini-trip module connector.
2. If resistance is more than 5 ohms, repair open Violet/Brown wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, check resistance at White/Black wire between terminals No. 6 at CCD bus diagnostic connector and No. 11 at compass/mini-trip module connector.
3. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, reconnect DRB-II. Put DRB-II in voltmeter mode. Turn ignition switch to ON position. Probe terminal No. 7 (Tan wire) at compass/mini-trip module connector. If voltage is more than 10 volts, replace compass/temperature module. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
4. If voltage is less than 10 volts, remove circuit breaker No. 25 from fuse block. Using an external ohmmeter, check resistance of circuit breaker. If resistance is less than 5 ohms, go to step 7). If resistance is more than 5 ohms, put DRB-II in ohmmeter mode.
5. Probe output terminal (in fuse block) from circuit breaker No. 25. If resistance is less than 5 ohms, repair short to ground in Tan wire and replace circuit breaker No. 25. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, reconnect compass/mini-trip module connector.
6. Probe output terminal (in fuse block) from circuit breaker No. 25. If resistance is less than 5 ohms, replace compass/mini-trip module and circuit breaker No. 25. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is more than 5 ohms, replace circuit breaker No. 25. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
7. If resistance is less than 5 ohms in step 4), probe input terminal (in fuse block) to circuit breaker No. 25. If voltage is less than 10 volts, repair open in wire between fuse block and compass/mini-trip module connector. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is more than 10 volts, repair open in Black/White wire to fuse block. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 23A - TESTING BODY CONTROLLER FOR NO RESPONSE

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Turn ignition switch to OFF position. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary. Using an external ohmmeter, check resistance of Violet/Brown wire between terminals No. 1 at CCD bus diagnostic connector and No. 7 at body controller Blue connector.
2. If resistance is more than 5 ohms, repair open Violet/Brown wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, check resistance at White/Black wire between terminals No. 6 at CCD bus diagnostic connector and No. 20 at body controller Blue connector.
3. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, Reconnect DRB-II. Put DRB-II in ohmmeter mode. Probe terminal No. 19 (Black/Light Green wire) at body controller Blue connector.
4. If resistance is more than 5 ohms, repair open Black/Light Green wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, put DRB-II in voltmeter mode. Turn ignition switch to ON position. Probe terminal No. 6 (Dark Blue/White wire) at body controller Blue connector.
5. If voltage is more than 10 volts, perform «TEST 23B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-23b-testing-body-controller) . If voltage is less than 10 volts, remove and inspect fuse No. 15 from fuse block. If fuse is blown, go to next step. If fuse is okay, probe voltage input terminal to fuse No. 15. If voltage is more than 10 volts, repair open Dark Blue/White wire between fuse block and body controller Blue connector. After repair, perform «TEST 23B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-23b-testing-body-controller) .
6. Turn ignition switch to OFF position. Disconnect instrument cluster connector. Check connector condition and clean or repair as necessary. Disconnect warning indicator module connector. Warning module is located above instrument cluster. Turn ignition switch to ON position.
7. Remove and recheck fuse No. 15. If fuse is blown repair short to ground in Dark Blue/White wire. After repair is completed, perform «TEST 23B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-23b-testing-body-controller) . If fuse is okay, turn ignition switch to OFF position. Reconnect warning indictor module connector. Turn ignition switch to ON position. Remove and recheck fuse No. 15. If use is blown, replace body controller. After repair is completed, perform «TEST 23B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-23b-testing-body-controller) . If fuse is okay, perform «TEST 23B»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-23b-testing-body-controller) .

TEST 23B - TESTING BODY CONTROLLER FOR NO RESPONSE

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Probe terminal No. 8 (Pink wire) of body controller Blue connector. If voltage is more than 10 volts, replace body controller (if not already replaced). Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is less than 10 volts, remove and inspect fuse No. 3 from fuse block.
2. If fuse is blown, go to next step. If fuse is okay, probe output terminal (at fuse block) from fuse No. 3. If voltage is more than 10 volts, repair open Pink wire between fuse block and body controller Blue connector. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If voltage is less than 10 volts, repair open Black/Red wire to fuse block. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . NOTE: Ensure, trunk, hood and all doors are closed. Tape glove box light switch closed or disconnect switch.
3. Put DRB-II in ohmmeter mode. Probe output terminal (in fuse block) from fuse No. 3. If resistance is more than 5 ohms, go to step 5). If resistance is less than 5 ohms, disconnect instrument cluster connector. Check connector, and clean or repair connector as necessary.
4. Reprobe output terminal from fuse No. 13. If resistance is more than 5 ohms, replace instrument cluster. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, repair short to ground in fuse No. 3 output circuit. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
5. If more than 5 ohms exist at fuse No. 3 output terminal in step 3), reconnect body controller Blue connector. Probe output terminal (in fuse block) from fuse No. 3. If resistance is more than 5 ohms, replace fuse No. 3. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, replace body controller. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

TEST 24A - TESTING SINGLE BOARD ENGINE CONTROLLER (SBEC) FOR NO RESPONSE

Note. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

1. Disconnect SBEC connector. Check connector condition and clean or repair connector as necessary. Using an external ohmmeter, check resistance between terminals No. 26 and 46 at SBEC. If resistance is not 100-140 ohms, replace SBEC. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
2. If resistance is 100-140 ohms, check resistance at Violet/Brown wire between terminal No. 1 at CCD bus diagnostic connector and terminal No. 26 at SBEC connector. If resistance is more than 5 ohms, repair open Violet/Brown wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .
3. If resistance is less than 5 ohms, check resistance at White/Black wire between terminal No. 6 at CCD bus diagnostic connector and terminal No. 46 at SBEC connector. If resistance is more than 5 ohms, repair open White/Black wire. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) . If resistance is less than 5 ohms, replace SBEC. Perform «VERIFICATION TEST»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__verification-test-verification-of-repairs) .

VERIFICATION TEST - VERIFICATION OF REPAIRS

1. Reconnect all components and connectors that have been disconnected. Connect DRB-II if it is not already disconnected. Turn ignition switch to ON position with engine off. If DRB-II display is blank, perform «TEST 1A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-1a-blank-drb-ii-message) .
2. If DRB-II displays a bus failure message, perform bus failure message test. See «TEST 7A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-7a-bus-failure-messages) . If DRB-II displays NO RESPONSE for any vehicle equipped module, perform NO RESPONSE test. See «TEST 20A»(/dodge/caravan/ii-1990-1995/remont/testing-diagnostics/#engine-controls-tests-wcodes-body-control-computer__test-20a-no-response-messages) .
3. If DRB-II does not display NO RESPONSE for any vehicle equipped module, check vehicle for original customer complaint. If original complaint is present, retest system. If original complaint is not present, repair is complete.

Wiring Diagram (BCM - FWD Van). Scheme 110

Wiring Diagram (2.5L - FWD Van). Scheme 111

Wiring Diagram (3.0L - FWD Van). Scheme 112

Wiring Diagram (3.3L - FWD Van). Scheme 113

See also:
• TEST 1A: IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS
• TEST 1A: BLANK DRB-II MESSAGE SCREEN
• VERIFICATION TEST - VERIFICATION OF REPAIRS
• PRETEST INSPECTION
• SELF-DIAGNOSTIC TESTS
• 2A
• 5A
• 6A
• 10A
• 22A
• 29A
• 37A
• 37B
• 38A
• 41A
• 44A
• 45A
• 47A
• CONNECTOR IDENTIFICATION
• TEST 3A
• TEST 4A
• TEST 2B
• TEST 5B
• TEST 18A
• TEST 19A
• TEST 20A
• TEST 44C
• TEST 24A
• TEST 6C
• TEST 16A
• TEST 10B
• TEST 11A
• TEST 12A
• TEST 10C
• TEST 13A
• TEST 14A
• TEST 15A
• TEST 17A
• TEST 16B
• TEST 16C
• TEST 22B
• TEST 23A
• 28A
• 25A
• 24B
• 27A
• TEST 24C
• TEST 26A
• TEST 36A
• TEST 46A
• 21A
• 48A
• TEST 28B
• TEST 28C
• TEST 28F
• TEST 28E
• TEST 28G
• TEST 28D
• 30A
• 31A
• 32A
• TEST 30B
• TEST 35A
• TEST 32B
• TEST 32C
• 33A
• 34A
• TEST 40A
• TEST 39A
• TEST 38B
• TEST 38C
• TEST 42A
• TEST 43A
• TEST 41B
• TEST 41C
• TEST 44B
• TEST 45B
• TEST 45C
• TEST 46B
• TEST 46C
• TEST 47C
• TEST 47D
• TEST 1B
• TEST 5A
• 14A
• 13A
• 16A
• 17A
• 18A
• 11A
• 8A
• 10A
• 9A
• 15A
• 19A
• 12A
• TEST 8B
• TEST 8C
• TEST 20A
• TEST 14B
• 23A
• 22A
• 21A
• 24A
• TEST 21B
• TEST 23B
• TEST 7A