Module Communications Network Ford Econoline I

DESCRIPTION & OPERATION

Vehicle has 2 module communications networks. The module communications network provides the ability for module-to-module communication by sharing inputs and outputs instead of each component having an input and output wired directly to each module. A BUS which consists of a pair of twisted wires is used to transfer information between each module. The BUS network is also referred to as Standard Corporate Protocol (SCP) network. The BUS consists of a (+) circuit No. 914 and a (-) circuit No. 915. The BUS is routed throughout the vehicle to the Powertrain Control Module (PCM) and on natural gas vehicles, the Natural Gas Vehicle Module (NGVM).

The air bag diagnostic monitor and the 4-Wheel Anti-Lock Brake System (4WABS) module do not use the BUS to communicate with other modules. The air bag diagnostic monitor and 4WABS module are connected to the International Standards Organization (ISO) 9141 diagnostic communications network through a single wire (circuit No. 70). Both networks are connected to the Data Link Connector (DLC). This article is used to diagnose BUS and ISO communications network circuit faults. For module locations, see COMPONENT LOCATIONS table.

COMPONENT LOCATIONS

COMPONENT LOCATIONS

REPAIRING BUS WIRING

Note. Following procedure must be used to ensure proper repair is performed on BUS wiring. BUS wiring is sensitive to moisture and oxidation and must be properly sealed to ensure proper operation of the module communications network. Regular heat shrink tubing is NOT sufficient, heat shrink tubing containing hot melt wax is required.

1. When performing a repair on the BUS wiring, ensure the wires on the BUS are twisted at a rate of 33-40 winds per 3.3 ft. (1 m). The twists should start approximately 4.9" (124 mm) from any connector. Use only 20 AWG standard wire gauge for repairs.
2. If performing a splice in the wiring, strip.75" (19.0 mm) of insulation from one wire and 1.50" (38.1 mm) of insulation from the other wire. Perform STEP 1. (Scheme 1) Place hot melt wax type heat shrink tubing over one wire.
3. Twist stripped portion of the wires together. Solder connection using resin core RMA solder. DO NOT use acid core solder. Bend wires to allow installation of heat shrink tubing. Perform STEP 2. (Scheme 1)
4. Position heat shrink tubing over splice area. Using heat gun, evenly heat the heat shrink tubing until wax flows from both ends of heat shrink tubing.

Scheme 1

INSPECTION & VERIFICATION

1. Verify customer's original problem by operating system in question. Inspect vehicle for any obvious electrical component wiring or connector damage. Inspect connectors for loose, damaged or corroded terminals. Check related fuses for system in question.
2. Inspect 16-pin Data Link Connector (DLC) pins for damage. (Scheme 2) The DLC is located below driver's side of instrument panel, to the right of steering column. If pins are okay, go to next step. If pins are damaged, repair as necessary and proceed to next step.
3. If problem is still present after performing inspection, connect New Generation Star (NGS) tester to DLC. Select vehicle to be tested from NGS tester menu. If NGS tester does not communicate with vehicle, ensure program card is properly installed. Check NGS tester cable connections and ensure ignition is on. If NGS tester still does not communicate with vehicle, go to «TEST H: NO MODULE/NETWORK COMMUNICATION»(/ford/econoline/i-1985-2013/remont/communication-devices/#module-communications-network__test-h-no-modulenetwork-communication) under TESTING. If NGS tester communicates with vehicle, perform data link diagnostic procedure. See «DATA LINK DIAGNOSTIC TEST»(/ford/econoline/i-1985-2013/remont/communication-devices/#module-communications-network__data-link-diagnostic-test).

Scheme 2

DATA LINK DIAGNOSTIC TEST

1. Connect New Generation Star (NGS) tester to Data Link Connector (DLC), if not already connected. Select vehicle to be tested from NGS tester menu.
2. Turn ignition on. Rotate dial on NGS tester to menu item DIAGNOSTIC DATA LINK and press trigger. A test will be performed on the BUS (circuits No. 914 and 915) for the module communications network and the ISO 9141 communication network (circuit No. 70). This is the Light Blue/White wire that is between terminal No. 7 on DLC, air bag diagnostic monitor and 4WABS module.
3. If NGS tester displays CKT 914 (+) = SYSTEM PASSED and CKT 915 (-) = SYSTEM PASSED, module communications network is okay. If NGS tester displays CKT 70 = SYSTEM PASSED, ISO 9141 communication network is operating properly. Return to article that directed you here and continue diagnosis.
4. If NGS tester does not display CKT 914 (+) = SYSTEM PASSED, CKT 915 (-) = SYSTEM PASSED and CKT 70 = SYSTEM PASSED, perform the following as applicable: If no response from NGS tester, go to «TEST H: NO MODULE/NETWORK COMMUNICATION»(/ford/econoline/i-1985-2013/remont/communication-devices/#module-communications-network__test-h-no-modulenetwork-communication) under TESTING. If NGS tester displays CKT 70, CKT 914 and/or CKT 915 = SOME ECUS NO RESP/NOT EQUIP, go to «SYMPTOM INDEX»(/ford/econoline/i-1985-2013/remont/communication-devices/#module-communications-network) table to continue diagnosis. If NGS tester displays CKT 70 = ALL ECUS NO RESP/NOT EQUIP, go to «TEST F: NO MODULE/NETWORK COMMUNICATION - ISO 9141 NETWORK»(/ford/econoline/i-1985-2013/remont/communication-devices/#module-communications-network__test-f-no-modulenetwork-communications) under TESTING. If NGS tester displays CKT 914 = ALL ECUS NO RESP/NOT EQUIP, go to «TEST G: NO MODULE/NETWORK COMMUNICATION - SCP NETWORK»(/ford/econoline/i-1985-2013/remont/communication-devices/#module-communications-network__test-g-no-modulenetwork-communications) under TESTING. If NGS tester displays CKT 915 = ALL ECUS NO RESP/NOT EQUIP, go to «TEST G: NO MODULE/NETWORK COMMUNICATION - SCP NETWORK»(/ford/econoline/i-1985-2013/remont/communication-devices/#module-communications-network__test-g-no-modulenetwork-communications) under TESTING. If module in question is NO RESPONSE/NOT EQUIPPED, go to «SYMPTOM INDEX»(/ford/econoline/i-1985-2013/remont/communication-devices/#module-communications-network) table to continue diagnosis. If module in question is NO RESPONSE ON CKT 914 (BUS +), go to «SYMPTOM INDEX»(/ford/econoline/i-1985-2013/remont/communication-devices/#module-communications-network) table under SYSTEM TESTING to continue diagnosis. If module in question is NO RESPONSE ON CKT 915 (BUS -), go to «SYMPTOM INDEX»(/ford/econoline/i-1985-2013/remont/communication-devices/#module-communications-network) table under SYSTEM TESTING to continue diagnosis.

RETRIEVING & CLEARING DIAGNOSTIC TROUBLE CODES

Connect New Generation Star (NGS) tester to Data Link Connector (DLC). Following manufacturers instructions to retrieve and clear codes for desired module. See appropriate table under DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS for a listing of Diagnostic Trouble Codes (DTCs) and appropriate test procedure.

ACCESSING PARAMETER IDENTIFICATION (PID)

Turn ignition switch to LOCK position. Connect New Generation Star (NGS) tester to Data Link Connector (DLC). Following manufacturers instructions enter PID/DATA MONITOR AND RECORD for desired module. Operate appropriate system and ensure PID expected values are obtained. See appropriate table under PARAMETER IDENTIFICATION (PID) DEFINITIONS .

SYSTEM TESTING

Note. Always check module power and ground circuits prior to replacing a control module. See appropriate wiring diagram in DATA LINK CONNECTORS, GROUND DISTRIBUTION or POWER DISTRIBUTION article in WIRING DIAGRAMS.

SYMPTOM INDEX

TEST A: 4-WHEEL ANTI-LOCK BRAKE SYSTEM (4WABS) MODULE DOES NOT RESPOND TO NGS TESTER

1. Turn ignition off. Disconnect 4WABS module 24-pin connector, located on left front frame rail. Inspect connector for loose, damaged or corroded terminals. Repair connector as necessary and retest system for normal operation. If connector is okay, go to next step.
2. Measure resistance of Light Blue/White wire between terminal No. 5 at 4WABS module connector and terminal No. 7 at DLC. (Scheme 2)and (Scheme 3). If resistance is 5 ohms or more, go to next step. If resistance is less than 5 ohms, replace 4WABS module and retest system for normal operation.
3. Disconnect Natural 76-pin connector C234 located on driver's side of engine compartment on firewall. Inspect connector for loose, damaged or corroded terminals. Repair connector as necessary and retest system for normal operation. If connector is okay, go to next step.
4. Measure resistance of Light Blue/White wire between terminal No. 43 at female half of connector C234 and terminal No. 7 at DLC. (Scheme 2)and (Scheme 4). If resistance is less than 5 ohms, repair open Light Blue/White wire between 4WABS module connector and connector C234. If resistance is 5 ohms or more, repair Light Blue/White wire between DLC and connector C234. Retest system for normal operation.

Scheme 3

Scheme 4

TEST B: AIR BAG DIAGNOSTIC MONITOR DOES NOT RESPOND TO NGS

1. Turn ignition off. Deactivate air bag system. See AIR BAG RESTRAINT SYSTEMS - ECONOLINE article. Disconnect air bag diagnostic monitor Gray 28-pin connector located behind right kick panel. Inspect connector for loose, damaged or corroded terminals. Repair connector as necessary and retest system for normal operation. If connector is okay, go to next step.
2. Measure resistance of Light Blue/White wire between terminal No. 19 at air bag diagnostic monitor connector and terminal No. 7 at DLC. (Scheme 2)and (Scheme 5). If resistance is 5 ohms or more, go to next step. If resistance is less than 5 ohms, replace air bag diagnostic monitor and retest system for normal operation.
3. Disconnect Black 14-pin connector C201 located behind right kick panel. Inspect connector for loose, damaged or corroded terminals. Repair connector as necessary and retest system for normal operation. If connector is okay, go to next step.
4. Measure resistance of Light Blue/White wire between terminal No. 2 at connector C201 and terminal No. 7 at DLC. (Scheme 2)and (Scheme 6). If resistance is less than 5 ohms, repair open Light Blue/White wire between female half of connector C201 and air bag diagnostic monitor connector. Retest system for normal operation. If resistance is 5 ohms or more, repair open Light Blue/White wire between male half of connector C201 and DLC. Retest system for normal operation.

Scheme 5

Scheme 6

TEST C: POWERTRAIN CONTROL MODULE (PCM) DOES NOT RESPOND TO NGS

Note. If test results indicate PCM is faulty, always check for any engine performance related Diagnostic Trouble Codes (DTCs) prior to replacing PCM. If any DTCs are present, service DTCs as necessary and retest. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

1. Turn ignition off. Disconnect PCM connector located in left rear of engine compartment, near brake master cylinder. Inspect connector for loose, damaged or corroded terminals. Repair connector as necessary and retest system for normal operation. If connector is okay, go to next step.
2. Using an ohmmeter, measure resistance of Tan/Orange wire between terminal No. 16 at PCM connector and terminal No. 2 at Data Link Connector (DLC). (Scheme 2)and (Scheme 7). Also, measure resistance of Pink/Light Blue wire between terminal No. 15 at PCM connector and terminal No. 10 at DLC. If both resistance readings are less than 5 ohms, replace PCM and retest system for normal operation. If any resistance reading is 5 ohms or more, go to next step.
3. Disconnect Natural 76-pin connector C234 located on driver's side of engine compartment on firewall. Inspect connector for loose, damaged or corroded terminals. Repair connector as necessary and retest system for normal operation. If connector is okay, go to next step.
4. Measure resistance of Tan/Orange wire between terminal No. 61 at female half of connector C234 and terminal No. 2 at DLC. (Scheme 2)and (Scheme 4). Also, measure resistance of Pink/Light Blue wire between terminal No. 59 at female half of connector C234 and terminal No. 10 at DLC. If both resistance readings are less than 5 ohms, repair open Tan/Orange wire and/or Pink/Light Blue wire between PCM connector and male half of connector C234. Retest system for normal operation. If any resistance reading is 5 ohms or more, repair open Tan/Orange wire and/or Pink/Light Blue wire between female half of connector C234 and DLC. Retest system for normal operation.

Scheme 7

TEST D: AUXILIARY POWERTRAIN CONTROL MODULE (APCM) DOES NOT RESPOND TO NGS

1. Turn ignition off. Disconnect APCM connector located below left side of instrument panel. Inspect connector for loose, damaged or corroded terminals. Repair connector as necessary and retest system for normal operation. If connector is okay, go to next step.
2. Using an ohmmeter, measure resistance of Tan/Orange wire between terminal No. 1 at APCM connector and terminal No. 2 at Data Link Connector (DLC). (Scheme 2)and (Scheme 8). Also, measure resistance of Pink/Light Blue wire between terminal No. 3 at APCM connector and terminal No. 10 at DLC. If both resistance readings are less than 5 ohms, replace APCM and retest system for normal operation. If any resistance reading is 5 ohms or more, repair open Tan/Orange wire and/or Pink/Light Blue wire between APCM connector and DLC. Retest system for normal operation.

Scheme 8

TEST E: NATURAL GAS VEHICLE MODULE (NGVM) DOES NOT RESPOND TO NGS

1. Turn ignition off. Disconnect NGVM connector located left side of engine compartment, on inner fender. Inspect connector for loose, damaged or corroded terminals. Repair connector as necessary and retest system for normal operation. If connector is okay, go to next step.
2. Using an ohmmeter, measure resistance of Tan/Orange wire between terminal No. 19 at NGVM connector and terminal No. 2 at Data Link Connector (DLC). (Scheme 2)and (Scheme 9). Also, measure resistance of Pink/Light Blue wire between terminal No. 18 at NGVM connector and terminal No. 10 at DLC. If both resistance readings are less than 5 ohms, replace NGVM and retest system for normal operation. If any resistance reading is 5 ohms or more, go to next step.
3. Disconnect Natural 76-pin connector C234 located on driver's side of engine compartment on firewall. Inspect connector for loose, damaged or corroded terminals. Repair connector as necessary and retest system for normal operation. If connector is okay, go to next step.
4. Measure resistance of Tan/Orange wire between terminal No. 61 at female half of connector C234 and terminal No. 2 at DLC. (Scheme 2)and (Scheme 4). Also, measure resistance of Pink/Light Blue wire between terminal No. 59 at female half of connector C234 and terminal No. 10 at DLC. If both resistance readings are less than 5 ohms, repair open Tan/Orange wire and/or Pink/Light Blue wire between NGVM connector and male half of connector C234. Retest system for normal operation. If any resistance reading is 5 ohms or more, repair open Tan/Orange wire and/or Pink/Light Blue wire between female half of connector C234 and DLC. Retest system for normal operation.

Scheme 9

TEST F: NO MODULE/NETWORK COMMUNICATIONS - ISO 9141 NETWORK

Note. Depending on module configuration, with all modules connected and with ignition switch in RUN position or with engine running 2-3 volts may be present at Data Link Connector (DLC) terminal No. 7 (Light Blue/White wire). This is the International Standards Organization (ISO) 9141 diagnostic communications network circuit.

1. Turn ignition off. Inspect Data Link Connector (DLC) for physical damage, bent terminals or corrosion. Pay particular attention to terminal No. 7 (Light Blue/White wire). Repair connector as necessary and retest system for normal operation. If connector is okay, go to next step.
2. Deactivate air bag system. See AIR BAG RESTRAINT SYSTEMS - ECONOLINE article. Disconnect air bag diagnostic monitor connector located behind right kick panel. Measure resistance of Light Blue/White wire between terminal No. 19 at air bag diagnostic monitor connector and terminal No. 7 at DLC. If resistance is less than 5 ohms, go to next step (if not equipped with 4WABS module) or go to step 5 (if equipped with 4WABS module).
3. Turn ignition on. Measure voltage between terminals No. 7 (Light Blue/White wire) and No. 16 (Light Green/Red wire) at DLC. (Scheme 2) Also, measure voltage between terminals No. 7 (Light Blue/White wire) and No. 4 (Black/Light Blue wire) at DLC. If any reading indicates voltage, go to next step. If both readings indicate zero volts, replace air bag diagnostic monitor and retest system for normal operation.
4. Turn ignition off. Disconnect Black 14-pin connector C201 located behind right kick panel. Turn ignition on. Measure voltage between terminals No. 7 (Light Blue/White wire) and No. 16 (Light Green/Red wire) at DLC. (Scheme 2) Also, measure voltage between terminals No. 7 (Light Blue/White wire) and No. 4 (Black/Light Blue wire) at DLC. If any reading indicates voltage, repair Light Blue/White wire between connector C201, connector C234 (if equipped with 4WABS) and DLC. Retest system for normal operation. If both readings indicate zero volts, repair Light Blue/White wire between connector C201 and air bag diagnostic monitor. Retest system for normal operation.
5. Turn ignition on. Measure voltage between terminals No. 7 (Light Blue/White wire) and No. 16 (Light Green/Red wire) at DLC. (Scheme 2) Also, measure voltage between terminals No. 7 (Light Blue/White wire) and No. 4 (Black/Light Blue wire) at DLC. If any reading indicates voltage, go to next step. If both readings indicate zero volts, replace air bag diagnostic monitor and retest system for normal operation.
6. Turn ignition off. Disconnect 4WABS module 24-pin connector, located on left front frame rail. Turn ignition on. Measure voltage between terminals No. 7 (Light Blue/White wire) and No. 16 (Light Green/Red wire) at DLC. (Scheme 2) Also, measure voltage between terminals No. 7 (Light Blue/White wire) and No. 4 (Black/Light Blue wire) at DLC. If any reading indicates voltage, go to next step. If both readings indicate zero volts, replace 4WABS module.
7. Turn ignition off. Disconnect Natural 76-pin connector C234 located on driver's side of engine compartment on firewall. Turn ignition on. Measure voltage between terminals No. 7 (Light Blue/White wire) and No. 16 (Light Green/Red wire) at DLC. (Scheme 2) Also, measure voltage between terminals No. 7 (Light Blue/White wire) and No. 4 (Black/Light Blue wire) at DLC. If any reading indicates voltage, go to step 4. If both readings indicate zero volts, repair Light Blue/White wire between connector C234 and 4WABS module connector. Retest system for normal operation.

TEST G: NO MODULE/NETWORK COMMUNICATIONS - SCP NETWORK

Note. Depending on module configuration, with all modules connected and with ignition switch in RUN position or with engine running 2-3 volts may be present at Data Link Connector (DLC) terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire). These are the Standard Corporate Protocol (SCP) diagnostic communications network circuits.

1. Turn ignition off. Inspect Data Link Connector (DLC) for physical damage, bent terminals or corrosion. Pay particular attention to terminals No. 2 (Tan/Orange wire) and No. 10 (Pink/Light Blue wire). (Scheme 2) Repair connector as necessary and retest system for normal operation. If connector is okay, go to next step.
2. Disconnect PCM connector located in left rear of engine compartment, near brake master cylinder. Measure resistance of Tan/Orange wire between terminal No. 16 at PCM connector and terminal No. 2 at DLC. (Scheme 2)and (Scheme 7). Also, measure resistance of Pink/Light Blue wire between terminal No. 15 at PCM connector and terminal No. 10 at DLC. If both resistance readings are less than 5 ohms, go to next step (vehicles with PCM only) or go to step 4 (vehicles with natural gas vehicle module or auxiliary powertrain control module). If any resistance reading is 5 ohms or more, proceed as follows. On vehicles with Powertrain Control Module (PCM) and/or Natural Gas Vehicle Module (NGVM), go to «TEST C: POWERTRAIN CONTROL MODULE (PCM) DOES NOT RESPOND TO NGS»(/ford/econoline/i-1985-2013/remont/communication-devices/#module-communications-network__test-c-powertrain-control-module-pcm). On vehicles with Auxiliary Powertrain Control Module (APCM), repair open Tan/Orange wire and/or Pink/Light Blue wire between female half of connector C234 and DLC. Retest system for normal operation.
3. Turn ignition on. Measure voltage between terminal No. 2 (Tan/Orange wire) and terminals No. 4 (Black/Light Blue wire) and No. 16 (Light Green/Red wire) at DLC. (Scheme 2) Also, measure voltage between terminal No. 10 (Pink/Light Blue wire) and terminals No. 4 (Black/Light Blue wire) and No. 16 (Light Green/Red wire) at DLC. If any reading indicates voltage, go to step 7. If all readings indicate zero volts, replace PCM and retest system for normal operation.
4. Turn ignition on. Measure voltage between terminal No. 2 (Tan/Orange wire) and terminals No. 4 (Black/Light Blue wire) and No. 16 (Light Green/Red wire) at DLC. (Scheme 2) Also, measure voltage between terminal No. 10 (Pink/Light Blue wire) and terminals No. 4 (Black/Light Blue wire) and No. 16 (Light Green/Red wire) at DLC. If any reading indicates voltage, go to next step (vehicles with auxiliary powertrain control module) or go to step 6 (vehicles with natural gas vehicle module). If all readings indicate zero volts, replace PCM and retest system for normal operation.
5. Turn ignition off. Disconnect Auxiliary Powertrain Control Module (APCM) connector located below left side of instrument panel. Turn ignition on. Measure voltage between terminal No. 2 (Tan/Orange wire) and terminals No. 4 (Black/Light Blue wire) and No. 16 (Light Green/Red wire) at DLC. (Scheme 2) Also, measure voltage between terminal No. 10 (Pink/Light Blue wire) and terminals No. 4 (Black/Light Blue wire) and No. 16 (Light Green/Red wire) at DLC. If any reading indicates voltage, go to step 7. If all readings indicate zero volts, replace APCM and retest system for normal operation.
6. Turn ignition off. Disconnect Natural Gas Vehicle Module (NGVM) connector located on left side of engine compartment, on inner fender. Turn ignition on. Measure voltage between terminal No. 2 (Tan/Orange wire) and terminals No. 4 (Black/Light Blue wire) and No. 16 (Light Green/Red wire) at DLC. (Scheme 2) Also, measure voltage between terminal No. 10 (Pink/Light Blue wire) and terminals No. 4 (Black/Light Blue wire) and No. 16 (Light Green/Red wire) at DLC. If any reading indicates voltage, go to next step. If all readings indicate zero volts, replace NGVM and retest system for normal operation.
7. Turn ignition off. Disconnect Natural 76-pin connector C234 located on driver's side of engine compartment on firewall. Turn ignition on. Measure voltage between terminal No. 2 (Tan/Orange wire) and terminals No. 4 (Black/Light Blue wire) and No. 16 (Light Green/Red wire) at DLC. (Scheme 2) Also, measure voltage between terminal No. 10 (Pink/Light Blue wire) and terminals No. 4 (Black/Light Blue wire) and No. 16 (Light Green/Red wire) at DLC. If any reading indicates voltage, repair Tan/Orange wire and/or Pink/Light Blue wire between connector C234, DLC and APCM (if equipped). Retest system for normal operation. If all readings indicate zero volts, repair Tan/Orange wire and/or Pink/Light Blue wire between connector C234, PCM connector and NGVM (if equipped). Retest system for normal operation.

TEST H: NO MODULE/NETWORK COMMUNICATION

1. Inspect NGS tester connector for loose, damaged or corroded terminals. Repair connector as necessary and retest system for normal operation. If connector is okay, go to next step.
2. Turn ignition off. Inspect Data Link Connector (DLC) for physical damage, bent terminals or corrosion. Repair as necessary and retest system for normal operation. If connector is okay, go to next step.
3. Turn ignition off. Remove and inspect fuse No. 23 (20-amp) from instrument panel fuse block. If fuse is okay, go to next step. If fuse is blown, replace fuse and retest system for normal operation. Recheck fuse. If fuse is okay, go to next step. If fuse is blown, repair short to ground in circuit No. 1047 (Light Green/Red wire) between instrument panel fuse block and DLC. Retest system for normal operation.
4. Measure voltage between ground and terminal No. 16 (Light Green/Red wire) at DLC. (Scheme 2) If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair circuit No. 1047 (Light Green/Red wire) between instrument panel fuse block and DLC. Retest system for normal operation.
5. Measure resistance between ground and terminals No. 4 (Black/Light Blue wire) and No. 5 (Black/White wire) at DLC. If both resistance readings are less than 5 ohms, repair or replace NGS tester. Retest system for normal operation. If any resistance reading is 5 ohms or more, repair open in Black/Light Blue wire or Black/White wire between ground and DLC. Retest system for normal operation.

DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS

AIR BAG DIAGNOSTIC MONITOR DTC INDEX (1)

AUDIO CONTROL MODULE (ACM) DTC INDEX

NATURAL GAS VEHICLE MODULE DTC INDEX

4 WHEEL ANTI-LOCK BRAKE SYSTEM (4WABS) MODULE DTC INDEX

PARAMETER IDENTIFICATION (PID) DEFINITIONS

AIR BAG DIAGNOSTIC MONITOR PID INDEX (1)

ANTI-LOCK BRAKE SYSTEM MODULE PID INDEX

NATURAL GAS VEHICLE MODULE PID INDEX

WIRING DIAGRAMS

Note. See appropriate wiring diagrams in DATA LINK CONNECTORS, GROUND DISTRIBUTION or POWER DISTRIBUTION article in WIRING DIAGRAMS.

See also:
• COMPONENT LOCATIONS
• TEST H: NO MODULE/NETWORK COMMUNICATION
• DATA LINK DIAGNOSTIC TEST
• TEST F: NO MODULE/NETWORK COMMUNICATION - ISO 9141 NETWORK
• TEST G: NO MODULE/NETWORK COMMUNICATION - SCP NETWORK
• DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS
• PARAMETER IDENTIFICATION (PID) DEFINITIONS
• A
• B
• C
• D
• E