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Diagnosis - CD4E Automatic Transmission: Diagnosis Ford Escape I

Automatic Trans 3 illustrations ~7595 words

Diagnostic Formats

Diagnostic Trouble Codes (DTCs) are retrieved using QUICK TEST. Three types of DTCs (KOEO, KOER and continuous memory) are stored. See RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST) under SELF-DIAGNOSTIC SYSTEM. During QUICK TEST, PCM performs 3 self-tests to retrieve DTCs. See RETRIEVING DTCS . DTCs may be cleared from PCM memory after they have been recorded or repaired. See CLEARING DIAGNOSTIC TROUBLE CODES under SELF-DIAGNOSTIC SYSTEM.

Key On, Engine Off (KOEO) Self-Test

KOEO self-test is a functional test of PCM performed with ignition switch turned to ON position, engine off. This test checks if PCM inputs and outputs are functioning electronically without any faults. KOEO self-test displays on-demand hard DTCs. These DTCs usually are electrical open and/or short circuits and must be serviced first, before any other type of DTCs. A fault must be present at time of testing for KOEO self-test to detect a fault.

Key On, Engine Running (KOER) Self-Test

Note. PCM will not perform KOER self-test if any KOEO DTCs are present and not repaired.

KOER on-demand self-test is a functional test of PCM performed with ignition key on, engine running. A check of certain inputs and outputs is made during operating conditions and normal operating temperature. The Brake Pedal Position (BPP) switch, Transmission Control Switch (TCS) and Power Steering Pressure (PSP) switch tests are part of KOER on-demand self-test and must be performed during this operation (if applicable). See BPP, PSP & TCS TEST PROCEDURES . A fault must be present at time of testing for KOER on-demand self-test to detect a fault.

BPP, PSP & TCS Test Procedures

This test ensures EEC-V system is able to detect a change of state in BPP, PSP and TCS switches. During KOER on-demand self-test, the brake pedal must be applied and then released, TCS must be cycled, and steering wheel must be turned at least 1/4 of a revolution.

Continuous Memory Self-Test

Note. Continuous memory self-test may also be known as memory test.

Continuous memory self-test is a functional test of PCM performed under any condition (engine running or engine off) with ignition switch turned to ON position. Unlike KOEO and KOER self-tests which can only be activated on demand, continuous memory is always active in monitoring the system. When a fault is detected, DTC will be stored in memory. This makes it possible to diagnose intermittent faults. Memory DTCs should be serviced last, after all other type of DTCs.

There are 2 types of Continuous Memory DTCs. Emission related DTCs will illuminate the Malfunction Indicator Light (MIL) on instrument cluster. Non-emission DTCs will never illuminate MIL. On emission-related MIL DTCs, PCM will store DTC in continuous memory at first detection of problem. The MIL will not be illuminated, but DTC is considered by PCM to be a pending DTC. If same problem is detected in next drive cycle, MIL will illuminate. MIL will go out if fault is not present after 3 consecutive drive cycles, or PCM has been reset. An emission-related pending DTC or non-emission DTC will be erased after 40-80 warm-up cycles or PCM reset.

The vehicle may need to be driven or the OBDII Drive Cycle completed to allow the PCM to detect a fault. See TRANSAXLE DRIVE CYCLE TEST under SELF-DIAGNOSTIC SYSTEM. When a fault is stored in memory, a DTC will be output on the data link at the end of the test when requested by a scan tool.

TROUBLE SHOOTING

Note. Any diagnosis should begin with confirming the customer's complaint. If possible, road test vehicle first, and note transmission performance for future reference during diagnosis.

Note. Prior to symptom diagnosis, record any stored DTCs. See RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST) under SELF-DIAGNOSTIC SYSTEM. If DTCs are present, diagnose and repair as instructed. If no DTCs are present, see SYMPTOM DIAGNOSIS (ELECTRONIC) or SYMPTOM DIAGNOSIS (MECHANICAL) .

PRELIMINARY INSPECTION

Visually inspect all electrical wiring, looking for chafed, stretched, cut or pinched wiring. Check for non-factory installed equipment wired into transaxle or PCM harness. Ensure electrical connectors fit tightly and are not corroded. Ensure vacuum hoses are properly routed, and are not pinched or cut. Inspect air induction system for possible vacuum leaks. Check PCM, sensors and actuators for physical damage. Check engine coolant level. Check transmission fluid level and condition.

Before vehicle is driven, ensure fluid is above DO NOT DRIVE hole on dipstick. (Scheme 10) Drive vehicle about 20 miles, until transaxle is at normal operating temperature. Transaxle must be at normal operating temperature to ensure correct fluid level check.

Fluid level should be checked with vehicle on level surface. Start engine and shift transaxle into each gear position, ensuring each gear engages. Check fluid level in Park position with engine at idle. Fluid level should be within cross-hatched area of dipstick. Ensure the following

  1. Use only Mercon-V transmission fluid.
  2. If transaxle fluid is excessively hot, allow vehicle to cool for 30 minutes prior to checking fluid level. Excessive heat build-up due to high speed operation, trailer towing, or operation in hot weather will affect fluid level.
  3. DO NOT overfill transaxle. Fluid will foam and may cause transaxle malfunction. Excessive fluid must be removed.
  4. Add fluid in 1/2 pint (.25 L) increments.

Scheme 10

Scheme 10
Scheme 10

SYMPTOM DIAGNOSIS (ELECTRONIC)

Note. For additional symptom diagnostic information related to mechanical components, see SYMPTOM DIAGNOSIS (MECHANICAL) . Road test vehicle to verify symptom(s). See ROAD TEST under PERFORMANCE TESTS.

ROAD TEST

  1. Ensure engine and transaxle are at normal operating temperature. Road test vehicle in "D" (overdrive on) position. Apply minimum throttle and observe speeds at which upshift occurs and torque converter engages. See appropriate VEHICLE SHIFT SPEEDS table.
  2. Stop vehicle. Accelerate vehicle to 12-15 MPH. Release throttle and allow vehicle to coast. Monitor downshift speeds. Downshift is gradual and may not be felt.
  3. Accelerate vehicle until transaxle shifts into 4th gear. Depress TCS. Transaxle should downshift into 3rd gear. Release throttle. Engine braking should occur. TCC should disengage and then reapply.
  4. Press accelerator pedal to floor (WOT). Transaxle should downshift from 3rd-to-2nd, or 3rd-to-1st gear depending on vehicle speed. Torque converter clutch should unlock.
  5. Accelerate vehicle to about 50 MPH in "D" position. Manually shift transaxle into 2nd gear. Transaxle should shift into 2nd gear. Manually shift transaxle into 1st gear. When speed drops below 28-32 MPH, transaxle will downshift into 1st gear.
  6. If transaxle fails to upshift/downshift or torque converter clutch does not lock/unlock, see TROUBLE SHOOTING.
Operating ConditionShift Speed MPH
Minimum Throttle (1)
1-29-20
2-317-27
3-433-45
Partial Throttle (2)
1-217-27
2-332-45
3-451-61
WOT
1-233-43
2-364-74
3-499-110
Coast (3)
4-324-37
3-210-20
2-16-16
Manual 2-120-30
(1) Minimum throttle opening (13 percent). (2) Partial throttle opening (30 percent). (3) Closed throttle, coasting condition. Downshift is gradual and may not be felt.
(1)Minimum throttle opening (13 percent).
(2)Partial throttle opening (30 percent).
(3)Closed throttle, coasting condition. Downshift is gradual and may not be felt.

VEHICLE SHIFT SPEEDS (COUGAR)

Operating ConditionShift Speed MPH
Minimum Throttle (1)
1-213-16
2-323-27
3-442-46
WOT
1-245
2-382
3-4N/A
Coast (2)
4-336
3-218
2-17
(1) Minimum throttle opening (13 percent). (2) Closed throttle, coasting condition. Downshift is gradual and may not be felt.
(1)Minimum throttle opening (13 percent).
(2)Closed throttle, coasting condition. Downshift is gradual and may not be felt.

VEHICLE SHIFT SPEEDS (ESCAPE & TRIBUTE)

Test Procedure

Connect pressure gauge to line pressure test port. see scheme 13 Start engine. Apply service and parking brakes. Check pressure in all gears. See LINE PRESSURE SPECIFICATIONS table. If line pressure is not within specification, go to TEST E: ELECTRONIC PRESSURE CONTROL SOLENOID under DIAGNOSTIC TESTS. If no electronic faults are present, perform air pressure checks and service valve body or pump as required. See AIR PRESSURE TESTS.

SELF-DIAGNOSTIC SYSTEM

Note. The first step in diagnosing any driveability problem is verifying the customer's complaint with a test drive under the conditions the problem reportedly occurred. Before entering self-diagnostics, perform a careful and complete visual inspection. Most transaxle control problems result from mechanical breakdowns or poor electrical connections.

Note. In addition to transaxle-related DTCs, engine-related DTCs may be output during RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST) procedure. These DTCs pertain to engine performance and must be repaired first, as engine performance will greatly affect transaxle operation. For information and testing procedures of engine-related DTCs and components, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

DIAGNOSTIC PROCEDURE

Note. Perform preliminary inspection before starting diagnostic procedure. See PRELIMINARY INSPECTION under TROUBLE SHOOTING.

  1. Perform QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) . Record and repair all KOEO and KOER DTCs. See «DIAGNOSTIC TROUBLE CODE DEFINITIONS»(ref-139754-S41804575602002050800000) . Repair engine-related DTCs before transaxle-related DTCs. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. Once DTCs are repaired, go to next step. If no KOEO or KOER DTCs were set, diagnose concern by symptom. See «SYMPTOM DIAGNOSIS (ELECTRONIC)»(ref-139754-S41741284162002050800000) under TROUBLE SHOOTING. Go to step 5 .
  2. Check for continuous memory DTCs. If any DTCs are set, clear all DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) . Perform «TRANSAXLE DRIVE CYCLE TEST»(ref-139754-S36486977362002050800000) . Go to next step. If continuous memory DTCs are not present, go to step 4 .
  3. Re-check for continuous memory DTCs. Perform diagnostic test corresponding to DTC. See «DIAGNOSTIC TROUBLE CODE DEFINITIONS»(ref-139754-S41804575602002050800000) . Once repair is completed, go to next step.
  4. Perform «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) . Clear continuous memory DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) . Perform test drive to confirm transaxle is operating correctly. If no problems are present, repair is complete. If problem is still present, diagnose concern by symptom. See «SYMPTOM DIAGNOSIS (ELECTRONIC)»(ref-139754-S41741284162002050800000) under TROUBLE SHOOTING. Go to next step.
  5. Follow diagnostic tests instructed by electronic symptom procedure. Perform static and drive tests using transmission tester. Follow tester manufacturer's instructions. Go to next step. If no electronic related symptoms are present, diagnose concern by mechanical symptom. See «SYMPTOM DIAGNOSIS (MECHANICAL)»(ref-139754-S14548213962002050800000) under TROUBLE SHOOTING. Go to step 7 .
  6. If transaxle problem was corrected during static and drive tests using transmission tester, PCM, vehicle harness and/or external inputs (sensors, switches) could be cause of problem. Diagnose possible intermittent problem using appropriate scan tool and transmission tester. See TEST Z: INTERMITTENT under SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. If transaxle problem was not corrected during static and drive tests using transmission tester, diagnose concern by symptom. See appropriate SYMPTOM DIAGNOSIS under «TROUBLE SHOOTING»(ref-139754-S28521171952002050800000) . Go to next step.
  7. Verify that no problems or symptoms are present. Perform QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) . Clear memory DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) . If no DTCs are present and transaxle is operating properly, repair is complete. If transaxle is not operating properly, go to step 1 .

RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)

Note. If self-test will not activate or TOOL COMMUNICATION ERROR is received, see SCAN TOOL UNABLE TO COMMUNICATE .

These DTCs indicate faults are present at time of testing. A hard fault may cause CHECK ENGINE or MIL to illuminate and remain illuminated until fault is repaired. If KOEO DTCs are retrieved during a KOEO SELF-TEST, identify DTCs and perform appropriate diagnostic test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .

SYSTEM PASS indicates no DTCs were recorded in that portion of test. If SYSTEM PASS is not retrieved in KOEO SELF-TEST, DTCs retrieved during KOER SELF-TEST may not be valid.

Ensure engine is at normal operating temperature. If engine does not start (or stalls after starting), continue KOEO SELF-TEST. Turn ignition switch to OFF position. Ensure test equipment is properly attached. Program NGS tester following manufacturer's instructions. Follow operating instructions from NGS tester menu.

These DTCs indicate faults are present at time of testing. A hard fault may cause CHECK ENGINE or MIL to illuminate and remain illuminated until fault is repaired. If KOER DTCs are retrieved during a KOER SELF-TEST, identify DTCs and perform appropriate diagnostic test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .

Ensure engine is at normal operating temperature. Turn ignition switch to OFF position. Ensure test equipment is properly attached. Program NGS tester following manufacturer's instructions. Follow operating instructions from NGS tester menu. Perform BPP switch, PSP switch and TCS (if applicable) cycling when instructed.

CAUTIONContinuous memory DTCs should be recorded when retrieved. These DTCs may be used to identify intermittent faults that exist after all KOEO and KOER DTCs have been repaired. Some continuous memory DTCs may not be valid after KOEO and KOER DTCs are serviced.

These DTCs result from information stored by PCM during continuous self-test monitoring. Use these DTCs for diagnosis only when KOEO SELF-TEST and KOER SELF-TEST result in SYSTEM PASS and all steps in QUICK TEST are successfully completed. These DTCs indicate faults previously recorded. Fault may or may not be currently present. See DIAGNOSTIC TROUBLE CODE DEFINITIONS . After noting and/or repairing concern, clear DTCs from memory. See CLEARING DIAGNOSTIC TROUBLE CODES . Intermittent faults may be caused by a sensor, connector or wiring-related concern.

Turn ignition switch to OFF position. Ensure test equipment is properly attached. Program NGS tester following manufacturer's instructions. Follow operating instructions from NGS tester menu.

DIAGNOSTIC TROUBLE CODE DEFINITIONS

Note. Only transaxle-related DTCs are listed. For engine-related DTC definitions, see TROUBLE CODE DEFINITIONS article in GENERAL INFORMATION. For engine-related DTC diagnosis, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. These DTCs pertain to engine performance and must be repaired first, as engine performance and related component signals will affect transaxle operation and diagnosis.

DTC (1)Diagnostic TestDescriptionConditionTransmission Symptom
P0102 & P0103(2)MAF Sensor MalfunctionMAF System Has A Malfunction Which May Cause A Transaxle ConcernIncorrect Shift Schedule, High/Low EPC Pressure. Incorrect TCC Engagement Scheduling. Symptoms Similar To A TP Failure
P0116(2)ECT Out Of On-Board Diagnostic RangeECT Temperature Higher Or Lower Than Expected During KOEO & KOERRe-Run On-Board Diagnostics At Normal Operating Temperature
P0117(2)ECT Indicates 254°F (125°C) - Short To GroundECT Temperature Higher Or Lower Than Expected During KOEO & KOERTCC Will Always Be Off Resulting In Poor Fuel Economy
P0118(2)ECT Indicates -40°F (-40°C) - Open CircuitECT Temperature Higher Or Lower Than Expected During KOEO & KOERTCC Will Always Be Off Resulting In Poor Fuel Economy
P0122-P0123(2)TP Sensor MalfunctionPCM Has Detected An Error. This Error May Cause A Transaxle ConcernHarsh Shifts, Abnormal Shift Patterns, TCC Does Not Engage, TCC Cycling
P0300-P0308, P0320 & P0340(2)Electronic Ignition (EI) System MalfunctionEI System Has A Malfunction Which May Cause A Transaxle ConcernEngine Malfunction, No TCC Engagement
P0705DDigital TR Sensor Circuit Short To Ground Or OpenDigital TR Sensor Circuits, Indicating An Invalid Pattern In TR_D. Condition Caused By A Short To Ground Or An Open In TR4, TR3A, TR2 and/or TR1 circuits, DTC P0705 Cannot Be Set By An Incorrectly Adjusted Digital TR SensorIncrease in EPC Pressure (Harsh Shifts); Defaults To OD Or D For All Gear Positions; In OD Position, Transmission Is Stuck In D Or Manual 2nd
P0707DTR Out Of Range, Shorted Circuit Or SensorTR Sensor, Circuit Or Powertrain Control Module Shorted To GroundNo Fourth Gear Operation, Firm Shift Feel, No Manual First Gear. No TCC Operation
P0708DDigital TR Sensor Circuit TR3A Open CircuitDigital TR Sensor Circuit TR3A Reading 2.6- 5.0V (Open Circuit). This DTC Cannot Be Set By An Incorrectly Adjusted Digital TR SensorIncrease In EPC Pressure, Defaults To OD Or D For All Gear Ranges
P0712BTFT Indicates 302°F (150°C) - Short To GroundVoltage Drop Across TFT Sensor Exceeds Scale Set For Temperature Of 302°F °C)TCC & Stabilized Shift Schedule May Be Enabled Sooner After Cold Start. Harsh Or Soft Shifts
P0713BTFT Indicates -40°F (-40°C) - Open CircuitVoltage Drop Across TFT Sensor Exceeds Scale Set For Temperature Of -40°F (-40°C)TCC & Stabilized Shift Schedule May Be Enabled Sooner After Cold Start. Harsh Or Soft Shifts
P0715FInsufficient Input From TSS SensorPCM Detected A Loss Of TSS Signal During OperationIncorrect TCC Engagements, Increased Engine RPM On Engagements, Harsh Shifts (MIL On)
P0717FIntermittent Signal From TSS SensorPCM Detected A Loss Of TSS Signal During OperationIncorrect TCC Engagements, Increased Engine RPM On Engagements, Harsh Shifts (MIL On)
P0718FErratic Or Noisy Signal From TSS SensorPCM Has Detected An Erratic Or No TSS SignalN/A
P0720FInsufficient Input From OSS SensorPCM Detected A Loss Of OSS Signal During OperationPossible Abnormal Shift Schedule
P0721FErratic Or Noisy Signal From OSS SensorPCM Has Detected An Erratic OSS SignalAbnormal Shift Schedule
P0722FIntermittent Signal From OSS SensorPCM Has Detected An Erratic Or No OSS SignalAbnormal Shift Schedule
P0731 (3)ANo 1st GearIncorrect Gear Ratio While Commanding 1st Gear(4) Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position. Shift Errors May Also Be Due To Other Internal Transaxle Concerns (e.g., Stuck Valves, Damaged Friction Material)
P0732 (3)ANo 2nd GearIncorrect Gear Ratio While Commanding 2nd Gear(4) Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position. Shift Errors May Also Be Due To Other Internal Transaxle Concerns (e.g., Stuck Valves, Damaged Friction Material)
P0733 (3)ANo 3rd GearIncorrect Gear Ratio While Commanding 3rd Gear(4) Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position. Shift Errors May Also Be Due To Other Internal Transaxle Concerns (e.g., Stuck Valves, Damaged Friction Material)
P0734 (3)ANo 4th GearIncorrect Gear Ratio While Commanding 4th Gear(4) Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position. Shift Errors May Also Be Due To Other Internal Transaxle Concerns (e.g., Stuck Valves, Damaged Friction Material)
P0741 (3)C (5)TCC Engagement ErrorN/ANo TCC Operation Or TCC Slips
P0740 & P0743 (6)CTCC Solenoid Circuit Failure During On-Board DiagnosticTCC Solenoid Circuit Fails To Provide Voltage Drop Across Solenoid, Circuit Open Or Shorted Or PCM Drive Failure During On-Board DiagnosticIf Short Circuit, Engine Stalls At Low Idle; If Open Circuit, TCC Does Not Engage
P0750, P0753 (6)ASSA Solenoid Circuit FailureSolenoid No. 1 Circuit Failed To Provide Voltage Drop Across Solenoid. Circuit Open Or Shorted Or PCM Drive Failure During On-Board Diagnostic(4) Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position
P0751ASSA Solenoid Functional FailureMechanical Or Hydraulic Failure Of The Solenoid Detected(4) Incorrect Gear Selection Depending On Failure Mode & Manual Lever Position
P0755, P0758 (6)ASSB Solenoid Circuit FailureSolenoid No. 2 Circuit Failed To Provide Voltage Drop Across Solenoid. Circuit Open Or Shorted Or PCM Drive Failure During On-Board Diagnostic(4) Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position
P0756ASSB Solenoid Functional FailureMechanical Or Hydraulic Failure Of The Solenoid Detected(4) Incorrect Gear Selection Depending On Failure Mode & Manual Lever Position
P1100 & P1101(2)MAF Sensor MalfunctionMAF System Has A Malfunction Which May Cause A Transaxle ConcernIncorrect Shift Schedule, High/Low EPC Pressure. Incorrect TCC Engagement Scheduling. Symptoms Similar To A TP Failure
P1120, P1121 & P1125(2)TP Sensor MalfunctionPCM Has Detected An Error. This Error May Cause A Transaxle ConcernHarsh Shifts, Abnormal Shift Patterns, TCC Does Not Engage, TCC Cycling
P1124(2)TP Sensor Voltage High/Low For Self-TestTP Sensor Was Not In Correct Position For Self-TestRerun Test With TP Sensor At Appropriate Position
P1351-P1364(2)Electronic Ignition (EI) System MalfunctionEI System Has A Malfunction Which May Cause A Transaxle ConcernEngine Malfunction, No TCC Engagement
P1460(2)ACC Switch ErrorA/C or Defrost ON Condition May Result From A/C Clutch Being On During On-Board DiagnosticRe-Run Diagnostics With A/C Off; If Stuck On, EPC Pressure Will Be Low
P1636(2)Inductive Signature ClipInductive Signature Clip CommunicationN/A
P1702DDigital TR Sensor Signal IntermittentRefer To DTCs P0705 & P0708Refer To DTCs P0705 & P0708
P1703(2)BPP Switch MalfunctionBrake Not Cycled During KOER, Brake On/Off Circuit Failure(7)
P1705DDigital TR Sensor Malfunction, Or Not In "P" Or "N" Position During KOEO/KOERKOEO/KOER Not Run In PARK Or NEUTRALDTC Is Set, Re-Run On-Board Diagnostics With Manual Lever In "P" Or "N" Position
P1711BTFT Sensor Not At Operating Temperature (25-240°F) During On-Board DiagnosticsWarm Or Cool Vehicle To Normal Operating TemperatureVehicle Cold Or Overheated
P1713BPCM Detects No TFT Change At Low Range During OperationMay Flash TCILIncreased EPC Pressure, Incorrect TCC Engagement Scheduling, Harsh TCC Engagement, Harsh Shifts
P1714HSSA Solenoid FailureMechanical Failure Of The Solenoid Detected(4) Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position
P1715HSSB Solenoid FailureMechanical Failure Of The Solenoid Detected(4) Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position
P1718BPCM Detects No TFT Change At High Range During OperationMay Flash TCILIncreased EPC Pressure, Incorrect TCC Engagement Schedule, Harsh Engagements & Shifts
P1741CContinuous Slip ErrorExcessive Variations In Slip (Engine Speed Surge) Across The Torque Converter Clutch DetectedEngine Runs Rough/Vehicle Shudders, May Feel A Slight Sensation Of The Engine Running Rough At Road Loads (Approximately 35-40 MPH In 3rd Gear, 45-50 MPH In 4th Gear)
P1742CTCC Solenoid Failed ONTCC Solenoid Has Failed On By Electrical, Mechanical Or Hydraulic ConcernHarsh Shifts, May Stall Vehicle At Low Speeds, May Activate MIL
P1743CTCC Solenoid Failed ONTCC Solenoid Has Failed On By Electrical, Mechanical Or Hydraulic ConcernHarsh Shifts, May Stall Vehicle At Low Speeds, May Activate TCIL
P1744CExcessive Slip DetectedExcessive Slip Detected During Full TCC EngagementTorque Converter Disengaged, EPC Pressure At Minimum, May Activate MIL
P1746 (3)EOpen PCM Output DriverVoltage Through EPC Solenoid Is Checked & Compared To A Voltage Through Solenoid After A Time Delay, Any Errors Are RecordedOpen Circuit - Causes Maximum EPC Pressure, Harsh Engagements & Shifts
P1747, P1760 (3)EEPC Solenoid Circuit Failure, Shorted Circuit Or Output DriverVoltage Through EPC Solenoid Is Checked & Compared To A Voltage Through Solenoid After A Time Delay, Any Errors Are RecordedShort Circuit - Causes Failsafe EPC Pressure (Maximum Capacity), Harsh Engagements & Shifts
P1751HSSA Solenoid Functional FailureMechanical Or Hydraulic Failure Of The Solenoid Detected (4)Incorrect Gear Selection Depending On Failure Mode & Manual Lever Position
P1756ASSB Solenoid Functional FailureMechanical Or Hydraulic Failure Of The Solenoid Detected (4)Incorrect Gear Selection Depending On Failure Mode & Manual Lever Position
P1780(2)Transmission Control Switch Not Changing States During Self-TestTransmission Control Switch Not Cycled During Self-Test. Circuit Open Or ShortedRerun Self-Test & Cycle Switch. No Overdrive Cancel When Switch Is Cycled
P1782(2)Performance/Economy (P/E) Switch Circuit Out Of Self-Test RangeP/E Switch Not Cycled During Self-Test Or Shorted/OpenedInability To Change Switch States
P1783BTransmission Overheating Condition, Fluid Temperature Exceeded - 270°F (132°C)Increase In EPC Pressure During Overtemp OnlyIncrease In EPC Pressure
P1788G3-2T/CCS Solenoid Circuit Failure - Open3-2T/CCS Circuit Fails To Provide Voltage Drop Across Solenoid. Circuit Open Or Processor Drive Circuit Failure During Self-TestFailed Off-Engine Braking In 2nd/3rd Gears, Firm Or Flared 3-2 Downshifts. Harsh 4-3 Downshifts
(1) Only engine performance-related DTCs that may affect transmission operation are listed. For complete list of engine performance-related DTCs, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. (2) See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. (3) DTC can be set by other non-electronic-related transmission hardware condition. (4) Refer to illustrations to check solenoid on/off operation. see scheme 4 (5) Diagnose DTC by symptom. See appropriate SYMPTOM DIAGNOSIS under TROUBLE SHOOTING. (6) Output circuit check, generated ONLY by electrical conditions. (7) If stuck on or not connected, TCC will not engage at 1/3 or less throttle. If stuck off or not connected, TCC will not disengage when brake is applied.
(1)Only engine performance-related DTCs that may affect transmission operation are listed. For complete list of engine performance-related DTCs, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(2)See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(3)DTC can be set by other non-electronic-related transmission hardware condition.
(4)Refer to illustrations to check solenoid on/off operation. see scheme 4
(5)Diagnose DTC by symptom. See appropriate SYMPTOM DIAGNOSIS under TROUBLE SHOOTING.
(6)Output circuit check, generated ONLY by electrical conditions.
(7)If stuck on or not connected, TCC will not engage at 1/3 or less throttle. If stuck off or not connected, TCC will not disengage when brake is applied.

DIAGNOSTIC TROUBLE CODE IDENTIFICATION

CLEARING DIAGNOSTIC TROUBLE CODES

CAUTIONDO NOT disconnect vehicle battery to clear DTCs. This will erase operating information from Keep-Alive Memory (KAM). To clear KAM, disconnect negative battery terminal for at least 5 minutes.
CAUTIONWhen battery is disconnected, vehicle computer may lose memory data. Driveability concerns may exist until computer systems have completed a relearn cycle. Before disconnecting battery, see COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION.

SCAN TOOL UNABLE TO COMMUNICATE

Note. See TEST QA: UNABLE TO ACTIVATE SELF-TEST/SCP COMMUNICATION ERROR/DTC NOT LISTED in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

TRANSAXLE DRIVE CYCLE TEST

Note. The transaxle drive cycle test must be followed exactly. Malfunctions have to occur 4 times consecutively for continuous memory codes P0731, P0732, P0733 and P0734 to set, and 5 times consecutively for continuous memory codes P0742 and P1742 to set.

Note. When performing transaxle drive cycle test see scheme 4 See OUTPUT DEVICES under DESCRIPTION & OPERATION.

  1. Record and then clear DTCs retrieved during «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) procedure. Warm engine to normal operating temperature. Ensure transmission fluid level is correct. Place gearshift lever in "OD" position.
  2. Accelerate from stop to 50 MPH. Hold speed for at least 15 seconds. While maintaining speed with transaxle in 4th gear, lightly depress brake pedal and release. Maintain speed for additional 5 seconds. Bring vehicle to a stop for at least 20 seconds. Repeat steps 1) and 2) at least 5 times. Perform «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) and record continuous memory codes.

DIAGNOSTIC TESTS

Note. Diagnostic tests are diagnostic formats used to test and service EEC-V system. For DTCs related to engine performance concerns, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST) allows technician to identify problems and retrieve DTCs. Diagnostic tests check transmission circuits, sensors, solenoids and actuators.

Note. Perform all voltage tests with a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure.

Procedures in diagnostic tests are written for use with following Ford Motor Co. test equipment

  1. Worldwide Diagnostic System (WDS) Scan Tool (418-F224) or New Generation Star (NGS) tester (007-00500) or equivalent.
  2. 104-Pin Breakout Box (014-00950)
  3. Transmission Tester (007-00130)

Terminal pin references are based on this equipment and appropriate overlays. For all references to "test pins" or "jacks", refer to test equipment. When aftermarket test equipment is used, always follow test equipment manufacturer's instructions.

HOW TO USE DIAGNOSTIC TESTS

  1. Do not perform any diagnostic test unless instructed by QUICK TEST or appropriate symptom description under «TROUBLE SHOOTING»(ref-139754-S28521171952002050800000) . Follow each test step in order until fault is found. DO NOT replace any part unless directed to do so. When more than one code is retrieved, start with first DTC displayed.
  2. Diagnostic tests ensure electrical circuits are okay before sensors or other components are replaced. Always test circuits for continuity between sensor and PCM. Test all circuits for short to power, opens or short to ground. Voltage Reference (VREF) and Voltage Power (VPWR) circuits should be tested with ignition switch in ON position or as specified in DIAGNOSTIC TESTS.
  3. If breakout box is not available for measuring voltage or resistance at PCM, always backprobe PCM harness connectors. DO NOT connect test light unless specified in testing procedure. All measurements are made by probing rear of connector (wiring harness side). When checking for shorts or continuity, isolate both ends of circuit. Ensure ignition switch is in OFF position (unless instructed otherwise).
  4. Disconnect solenoids and switches from harness before measuring continuity and resistance or applying voltage. After each repair, check all component connections and repeat «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.
  5. An open circuit is defined as a resistance reading of greater than 5 ohms. This specification tolerance may be too high for some items in EEC-V system. If resistance approaches 5 ohms, always clean suspect connector and coat with protective dielectric silicone grease. A short is defined as a resistance reading of less than 10 k/ohms to ground, unless stated otherwise in DIAGNOSTIC TESTS.
  6. If instructed to replace Powertrain Control Module (PCM) after performing a diagnostic test, new PCM must be programmed. See «PROGRAMMING»(ref-139754-S35506249052002050800000) .

Diagnostic Aids

Fuel-contaminated engine oil may set some DTCs and affect engine performance. If oil is suspect, remove PCV valve from valve cover and repeat QUICK TEST. See RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST) under SELF-DIAGNOSTIC SYSTEM. If problem is corrected, change engine oil.

TEST A: SHIFT SOLENOIDS

Note. After each service or repair procedure has been completed, reconnect all components. Clear DTCs and repeat QUICK TEST. See RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST) under SELF-DIAGNOSTIC SYSTEM. Ensure all EEC-V systems are working properly and DTCs are no longer present.

  1. Ensure transaxle harness connector is in acceptable condition. Repair as necessary. Ensure transaxle harness connector is fully seated. Connect NGS tester or equivalent to DLC. Perform «KEY ON ENGINE OFF (KOEO) SELF-TEST»(ref-139754-S34664706792002050800000) until continuous memory codes have been displayed. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. Enter output test mode. See «ADDITIONAL SYSTEM FUNCTIONS»(ref-139754-S22891888092002050800000) under SELF-DIAGNOSTIC SYSTEM. Select ALL ON mode. Push START to turn outputs on. Push STOP to turn outputs off. If vehicle enters output test mode, go to next step. If vehicle will not enter output test mode, see «SCAN TOOL UNABLE TO COMMUNICATE»(ref-139754-S06692093982002050800000) under SELF-DIAGNOSTIC SYSTEM.
  2. Disconnect transaxle harness connector. Inspect condition of connector and repair as needed. Turn ignition on. Using DVOM, connect positive lead to transaxle harness connector terminal No. 5. see scheme 18 Connect negative lead to suspect solenoid circuit. See «SHIFT SOLENOID CIRCUIT CONTINUITY TEST»(ref-139754-S26002151242002050800000) table. While monitoring DVOM, press START and STOP to cycle solenoid output on and off. If voltage changes at least.5 volt, go to step 5. If voltage does not change as specified, go to next step.
  3. Ensure ignition switch is turned to OFF position. Disconnect PCM 104-pin connector, and inspect it for damaged terminals, corrosion and loose wires. Repair as necessary. Install breakout box, leaving PCM disconnected. Measure and record resistance between specified transaxle harness connector terminal and breakout box test pin. See «SHIFT SOLENOID CIRCUIT CONTINUITY TEST»(ref-139754-S26002151242002050800000) table. If any resistance reading is 5 ohms or more, repair open circuit. Connect all components. Disconnect breakout box. If each resistance reading is less than 5 ohms, go to next step.
  4. Measure and record resistance between specified breakout box test pins. See «SHIFT SOLENOID SHORT CIRCUIT TEST»(ref-139754-S07031802422002050800000) table. If resistance readings are more than 10 k/ohms, go to next step. If any resistance reading is 10 k/ohms or less, repair short circuit. Connect all components. Disconnect breakout box. SHIFT SOLENOID CIRCUIT CONTINUITY TEST Solenoid & Transaxle Harness Connector Terminal No. (1) Breakout Box Pin No. (SS1) 4 6 (SS2) 6 11 (VPWR) 1 71 & 97 (1) see scheme 18 SHIFT SOLENOID SHORT CIRCUIT TEST (1) Breakout Box Solenoid Signal Output Pins No. Breakout Box Test Pins No. 6 & 11 71 & 97 6 & 11 24, 25, 51, 77, 91 & 103 6 & 11 Ground (1) Measure between breakout box test pins.
  5. Connect transmission tester. Perform solenoid voltage test. See transmission tester instructions. If solenoid activates (Green LED on), go to next step. If LED turns Red (shorted to VPWR) or if solenoid does not activate LED (shorted to ground or open circuit), go to step 7.
  6. Connect PCM 104-pin connector. Perform test drive using transmission tester. If transaxle does not upshift when operated by transmission tester, go to next step. If transaxle upshifts when operated with transmission tester, replace PCM. See «POWERTRAIN CONTROL MODULE»(ref-139754-S16632634802002050800000) under REMOVAL & INSTALLATION. Connect all components. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Disconnect breakout box and repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. If symptom is still present, see appropriate SYMPTOM DIAGNOSIS under «TROUBLE SHOOTING»(ref-139754-S28521171952002050800000).
  7. Set transmission tester BENCH/DRIVE switch to BENCH position. Set gear select switch to OHMS CHECK position. Measure and record resistance between VPWR jack and SS1 and SS2 jack on transmission tester. If resistance readings are 12-22 ohms, go to next step. If any resistance reading is not 12-22 ohms, replace faulty transmission control solenoid body assembly. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.
  8. Check continuity between BAT (-) jack and SS1 and SS2 jack on transmission tester. If continuity exists, replace faulty transmission control solenoid body assembly. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. If continuity does not exist, see appropriate SYMPTOM DIAGNOSIS under «TROUBLE SHOOTING»(ref-139754-S28521171952002050800000).

TEST B: TRANSMISSION FLUID TEMPERATURE SENSOR

Note. After each service or repair procedure has been completed, reconnect all components. Clear DTCs and repeat QUICK TEST. See RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST) under SELF-DIAGNOSTIC SYSTEM. Ensure all EEC-V systems are working properly and DTCs are no longer present.

  1. Check transaxle harness connector. Inspect connector for damaged terminals, corrosion and loose wires. Ensure transaxle connector is fully seated. Repair as necessary. Go to next step.
  2. Ensure scan tool is connected to DLC. Turn ignition on. Select DIAGNOSTIC DATA LINK, PCM, then PID/DATA MONITOR & RECORD. If vehicle enters PID/DATA MONITOR & RECORD, go to next step. If vehicle does not enter PID/DATA MONITOR & RECORD, attempt to enter PID/DATA MONITOR again. If vehicle will not operate as specified, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
  3. Monitor TFT PID. Warm up transmission fluid if cold, or allow transmission fluid to cool if warm. If TFT PIDs increase as transmission warms or decrease as transmission cools, clear DTCs. Road test vehicle. See «TRANSAXLE DRIVE CYCLE TEST»(ref-139754-S36486977362002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000). If TFT DTC or fault is still present, see appropriate SYMPTOM DIAGNOSIS in «TROUBLE SHOOTING»(ref-139754-S28521171952002050800000). If scan tool displays TFT PID that is not consistent, check for intermittent condition at harness, sensor or connector. If TFT PIDs do not increase as transmission warms or decrease as transmission cools, go to next step.
  4. Ensure ignition switch is turned to OFF position. Disconnect transaxle harness connector. Using DVOM, connect positive lead to transaxle harness connector terminal No. 3 and negative lead to terminal No. 2. see scheme 18 Turn ignition switch to ON position. If voltage is 4.75-5.25 volts, go to step 8. If voltage is not within specification, go to next step.
  5. Turn ignition switch to OFF position. Disconnect PCM 104-pin connector, and inspect it for damaged terminals, corrosion and loose wires. Repair as necessary. Install breakout box, leaving PCM disconnected. Measure and record resistance between breakout box test pin No. 37 and transaxle harness connector terminal No. 3. see scheme 18 Measure and record resistance between test pin No. 91 and transaxle harness connector terminal No. 2. If each resistance is less than 5 ohms, go to next step. If any resistance is more than 5 ohms, repair open circuit. Connect all components. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.
  6. Ensure ignition switch is turned to OFF position. Measure and record resistance between breakout box test pin No. 37 and test pins No. 71 and 97. Measure and record resistance between test pin No. 37 and test pins No. 77, 91, 103 and ground. If any resistance is more than 10 k/ohms, go to next step. If any resistance is 10 k/ohms or less, repair suspect short circuit. Disconnect breakout box and clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Road test vehicle. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.
  7. Install transmission tester. Set tester BENCH/DRIVE switch to BENCH position. Set solenoid select switch to OHMS CHECK. Connect ohmmeter leads to appropriate TFT jacks. Measure and record resistance. Resistance should be within specification. See «TFT SENSOR TEMPERATURE/RESISTANCE»(ref-139754-S26768940972002050800000) table. If resistance readings are within specification for specific temperature, either warm up transaxle or allow transaxle to cool to measure resistance at different temperatures. If resistance readings remain within specification, go to next step. If resistance readings are not within specification, replace faulty transmission control solenoid body assembly. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. TFT SENSOR TEMPERATURE/RESISTANCE Temperature °F (°C) k/ohms -40 To -4 (-40 To -20) 242-1134 -3 To 31 (-19 To -1) 84-242 32-68 (0-20) 41-84 69-104 (21-40) 14-41 105-158 (41-70) 5.9-14 159-194 (71-90) 3.1-5.9 195-230 (91-110) 1.7-3.1 231-266 (111-130) 1.0-1.7 267-302 (131-150).6-1.0
  8. Check continuity between BAT (-) tester jack and TFT sensor jacks. If continuity exists, replace faulty transmission control solenoid body assembly. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. If continuity does not exist, replace PCM. See «POWERTRAIN CONTROL MODULE»(ref-139754-S16632634802002050800000) under REMOVAL & INSTALLATION. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Road test vehicle. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.

TEST D: TRANSMISSION RANGE SENSOR

Note. After each service or repair procedure has been completed, reconnect all components. Clear DTCs and repeat QUICK TEST. See RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST) under SELF-DIAGNOSTIC SYSTEM. Ensure all EEC-V systems are working properly and DTCs are no longer present.

Scheme 11

Scheme 11: TEST D: TRANSMISSION RANGE SENSOR
Scheme 11: TEST D: TRANSMISSION RANGE SENSOR

Scheme 12

Scheme 12
Scheme 12
  1. Turn ignition switch to OFF position. Place gearshift lever in "N" position. Disconnect gearshift lever cable. Ensure TR sensor is correctly adjusted. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. If sensor is correctly adjusted, go to next step. If sensor requires adjustment, adjust TR sensor and clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.
  2. Place gearshift lever in "D" position. Reconnect gearshift lever cable. Adjust as required. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Go to next step.
  3. Ensure ignition switch is turned to OFF position. Place gearshift lever in "P" position. Disconnect TR sensor harness connector. Inspect component and harness connector terminals. Repair as needed. Using DVOM, connect positive lead to terminal No. 5 on TR sensor harness connector. Connect negative lead to terminal No. 10. see scheme 19 If voltage is 4.75-5.25 volts, go to next step. If voltage is not 4.75-5.25 volts, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE to diagnose no reference voltage.
  4. Turn ignition off. Disconnect PCM 104-pin connector, and inspect it for damaged terminals, corrosion and loose wires. Repair as necessary. Install breakout box, leaving PCM disconnected. Measure and record resistance between breakout box test pin terminal No. 91 and TR sensor harness connector terminal No. 5. Measure and record resistance between breakout box test pin terminal No. 64 and TR sensor harness connector terminal No. 10. see scheme 19 If each resistance reading is less than 5 ohms, go to next step. If any resistance reading is more than 5 ohms, repair open circuit. See «WIRING DIAGRAMS»(ref-139754-S32144327892002050800000). Remove breakout box and connect all components. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.
  5. Measure resistance between breakout box test pin No. 64 and test pins No. 24, 51, 71, 77, 91, 97 and 103. Measure resistance between breakout box test pin No. 64 and chassis ground. If each resistance reading is more than 10 k/ohms, go to next step. If any resistance reading is less than 10 k/ohms, repair short circuit. Remove breakout box and connect all components. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.
  6. Install TR sensor overlay on transmission tester. (Scheme 11) Connect tester to TR sensor. Check continuity and resistance in all positions. (Scheme 12) If TR sensor does not operate within specification, replace TR sensor. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Connect all components. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. If sensor operates within specification, go to next step.
  7. Monitor transmission tester indicator lights while moving gearshift lever through all positions. If indicator light display matches gearshift lever position, replace PCM. See «POWERTRAIN CONTROL MODULE»(ref-139754-S16632634802002050800000) under REMOVAL & INSTALLATION. Disconnect breakout box and clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. Go to next step. If indicator light display does not match gearshift lever position, replace TR sensor. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Connect all components. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.
  8. Monitor transmission tester indicator light while moving gearshift lever to "R" position. Verify if back-up lights are illuminated. If indicator light display matches gearshift lever position and back-up lights operate correctly, system is currently operating correctly. If indicator light display does not match gearshift lever position and/or back-up lights are not illuminated, replace TR sensor. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Connect all components. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.

TEST E: ELECTRONIC PRESSURE CONTROL SOLENOID

Note. After each service or repair procedure has been completed, reconnect all components. Clear DTCs and repeat QUICK TEST. See RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST) under SELF-DIAGNOSTIC SYSTEM. Ensure all EEC-V systems are working properly and DTCs are no longer present.

  1. Ensure transaxle harness connector is in acceptable condition. Repair as necessary. Ensure transaxle harness connector is fully seated. Connect NGS tester or equivalent to DLC. Perform «KEY ON ENGINE OFF (KOEO) SELF-TEST»(ref-139754-S34664706792002050800000) until continuous memory code(s) have been displayed. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. Enter output test mode. See «ADDITIONAL SYSTEM FUNCTIONS»(ref-139754-S22891888092002050800000) under SELF-DIAGNOSTIC SYSTEM. Select ALL ON mode. Push START to turn outputs on. Push STOP to turn outputs off. If vehicle enters output test mode, remain in output test mode and go to next step. If vehicle will not enter output test mode, see «SCAN TOOL UNABLE TO COMMUNICATE»(ref-139754-S06692093982002050800000) under SELF-DIAGNOSTIC SYSTEM.
  2. Turn ignition switch to OFF position. Disconnect transaxle harness connector. Inspect condition of connector and repair as needed. Turn ignition switch to ON position. Using DVOM, connect positive lead to transaxle harness connector terminal No. 8 and negative lead to terminal No. 9. see scheme 18 While monitoring DVOM, press START and STOP to cycle EPC solenoid output on and off. If voltage changes at least.5 volt, go to step 5. If voltage is unaffected, go to next step.
  3. Ensure ignition switch is turned to OFF position. Disconnect PCM 104-pin connector, and inspect it for damaged terminals, corrosion and loose wires. Repair as necessary. Install breakout box, leaving PCM disconnected. Measure and record resistance between breakout box test pins No. 71 and 97, and transaxle harness connector terminal No. 9. Measure and record resistance between breakout box test pin No. 81 and transaxle harness connector terminal No. 8. If each resistance is less than 5 ohms, go to next step. If any resistance is 5 ohms or more, repair open circuit. Connect all components. Disconnect breakout box and repeat «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.
  4. Measure and record resistance between breakout box pin No. 81 and test pins No. 71 and 97. Measure and record resistance between breakout box test pin No. 81 and test pins No. 24, 51, 77, 91 and 103. If each resistance is more than 10 k/ohms, go to next step. If any resistance is 10 k/ohms or less, repair short circuit. Connect all components. Disconnect breakout box and repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.
  5. Connect PCM 104-pin connector. Disconnect transaxle harness connector. Connect transmission tester. Connect line pressure gauge. See «HYDRAULIC PRESSURE TESTS»(ref-139754-S36883270822002050900000) under PERFORMANCE TESTS. Set BENCH/DRIVE switch to DRIVE position. Set gear select switch to "1" position. Perform EPC solenoid function test. See tester instructions. Observe line pressure on gauge while depressing EPC switch with KOER. EPC solenoid should activate (Green LED) and line pressure should drop when EPC solenoid switch is depressed. If EPC solenoid operates correctly (Green LED), replace PCM. See «POWERTRAIN CONTROL MODULE»(ref-139754-S16632634802002050800000) under REMOVAL & INSTALLATION. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. If LED turns Red (shorted to VPWR) or if EPC solenoid does not activate LED (shorted to ground or open circuit), go to next step.
  6. Ensure transmission tester power is off. Connect ohmmeter to EPC solenoid jacks. If resistance is 3.75-5.92 ohms, go to next step. If resistance is not 3.75-5.92 ohms, replace faulty transmission control solenoid body assembly. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.
  7. Set BENCH/DRIVE switch to BENCH position. Check continuity between BAT (-) jack and EPC solenoid jacks of transmission tester. If continuity exists, replace faulty transmission control solenoid body assembly. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. If continuity does not exist, see appropriate SYMPTOM DIAGNOSIS under «TROUBLE SHOOTING»(ref-139754-S28521171952002050800000).

TEST F: TURBINE SHAFT SPEED SENSOR & OUTPUT SHAFT SPEED SENSOR

Note. After each service or repair procedure has been completed, reconnect all components. Clear DTCs and repeat QUICK TEST. See RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST) under SELF-DIAGNOSTIC SYSTEM. Ensure all EEC-V systems are working properly and DTCs are no longer present.

  1. Ensure transaxle harness connector is in acceptable condition. Repair as necessary. Ensure transaxle harness connector is fully seated. Connect NGS tester or equivalent to DLC. Turn ignition on. Select PID DATA MONITOR and record. If vehicle enters PID DATA MONITOR mode, remain in mode and go to next step. If vehicle will not enter PID DATA MODE, see «SCAN TOOL UNABLE TO COMMUNICATE»(ref-139754-S06692093982002050800000) under SELF-DIAGNOSTIC SYSTEM.
  2. While monitoring either TSS or OSS PID data, road test vehicle. See «TRANSAXLE DRIVE CYCLE TEST»(ref-139754-S36486977362002050800000) . Determine if TSS or OSS PID data increases and decreases with engine and vehicle speed, or if sensor signal data is erratic or inconsistent. If TSS or OSS PID data increases and decreases with engine and vehicle speed, clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Road test vehicle. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) . If TSS or OSS DTC or fault is still present, diagnose by symptom. See appropriate SYMPTOM DIAGNOSIS in «TROUBLE SHOOTING»(ref-139754-S28521171952002050800000) . Go to next step. If scan tool displays TSS or OSS PID data that is not consistent or does not increase and decrease with engine and vehicle speed, check for intermittent condition at all applicable harness, sensor and component connectors. See «WIRING DIAGRAMS»(ref-139754-S32144327892002050800000) . If TFT PIDs do not increase as transmission warms or decrease as transmission cools, go to next step.
  3. Ensure ignition switch is turned to OFF position. Disconnect PCM 104-pin connector, and inspect it for damaged terminals, corrosion and loose wires. Repair as necessary. Install breakout box, leaving PCM disconnected. Disconnect TSS or OSS sensor harness connector. Measure and record resistance between specified breakout box test pin and TSS or OSS harness connector terminal. See «PCM-TO-TSS & OSS SENSOR HARNESS OPEN CIRCUIT TEST»(ref-139754-S20996118752001121700000) . If resistance readings are less than 5 ohms, go to next step. If resistance readings are 5 ohms or more, repair open circuits. Connect all components. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. PCM-TO-TSS & OSS SENSOR HARNESS OPEN CIRCUIT TEST Breakout Box Pin No. Sensor Terminal No. (Wire Color) Cougar TSS 84 1 (White/Purple) 76 2 (Brown/White) OSS 58 1 (White/Blue) 33 2 (Brown/Blue) Escape & Tribute TSS 3 1 (Brown/Light Green) 59 2 (White/Light Blue) OSS 3 1 (Brown/Light Green) 84 2 (Dark Blue/Yellow)
  4. Ensure TSS or OSS sensor harness connectors is disconnected. Measure and record resistance between specified breakout box test pin and TSS or OSS harness breakout box test pin. See «PCM-TO-TSS & OSS SENSOR HARNESS SHORT CIRCUIT TEST»(ref-139754-S11789152632002051600000) . If resistance is more than 10 k/ohms, go to next step. If any resistance reading is 10 k/ohms or less, repair short circuit. Connect all components. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. PCM-TO-TSS & OSS SENSOR HARNESS SHORT CIRCUIT TEST Breakout Box TSS & OSS Test Pin No. Breakout Box Test Pins Cougar TSS 84 24, 51, 71, 76, 77, 97 & 103 76 71 & 97 OSS 58 24, 51, 71, 76, 77, 97 & 103 33 71 & 97 Escape & Tribute TSS 3 71 & 97 59 24, 51, 71, 76, 77, 97 & 103 OSS 3 71 & 97 84 24, 51, 71, 76, 77, 97 & 103
  5. Connect PCM 104-pin connector. Ensure TSS sensor harness connector is disconnected. Connect transmission tester to TSS or OSS sensor component connector. Connect voltmeter leads to appropriate tester TSS/OSS sensor jacks. Set voltmeter to 20-volt AC scale. Perform drive cycle test. See «TRANSMISSION DRIVE CYCLE TEST»(ref-139754-S36486977362002050800000) under DIAGNOSIS & TESTING. If voltage increases with vehicle speed, replace PCM. See «POWERTRAIN CONTROL MODULE»(ref-139754-S16632634802002050800000) under REMOVAL & INSTALLATION. Connect all components. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. If voltage does not increase with vehicle speed, go to next step.
  6. Connect ohmmeter leads to transmission tester TSS/OSS sensor jacks. Resistance should be 140-290 ohms for TSS sensor or 503-1010 ohms for OSS sensor. If resistance is as specified, go to next step. If resistance is not as specified, replace TSS or OSS sensor as needed. Repeat step 5 .
  7. Check for continuity between transmission tester TSS/OSS sensor jacks and tester BAT (-) jack. If continuity does not exist, go to next step for TSS or step 10 for OSS. If continuity exists, replace TSS or OSS sensor. Repeat step 5 .
  8. Remove TSS sensor from transaxle. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Determine if TSS sensor is magnetically attracted to a ferrous metal surface. If TSS sensor sticks to ferrous metal surface, go to next step. If TSS sensor does not stick to ferrous metal surface, replace TSS sensor. Connect all components. Repeat step 5 .
  9. With TSS sensor removed, inspect condition of exciter wheel. Rotate engine with remote starter switch and ensure all 4 teeth of exciter wheel are not damaged. Replace exciter wheel if any teeth are damaged. See appropriate OVERHAUL article. Repeat step 5 . If exciter wheel is not damaged, replace TSS sensor. Repeat step 5 .
  10. Remove OSS sensor from transaxle. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Determine if OSS sensor is magnetically attracted to a ferrous metal surface. If TSS sensor sticks to ferrous metal surface, OSS sensor is okay. See appropriate SYMPTOM DIAGNOSIS in «TROUBLE SHOOTING»(ref-139754-S28521171952002050800000) . If OSS sensor does not stick to ferrous metal surface, replace OSS sensor. Repeat step 5 .

TEST G: 3-2 TIMING/COAST CLUTCH SOLENOID

Note. After each service or repair procedure has been completed, reconnect all components. Clear DTCs and repeat QUICK TEST. See RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST) under SELF-DIAGNOSTIC SYSTEM. Ensure all EEC-V systems are working properly and DTCs are no longer present.

  1. Ensure transaxle harness connector is in acceptable condition. Repair as necessary. Ensure transaxle harness connector is fully seated. Connect NGS tester or equivalent to DLC. Perform «KEY ON ENGINE OFF (KOEO) SELF-TEST»(ref-139754-S34664706792002050800000) until continuous memory codes have been displayed. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. Enter output test mode. See «ADDITIONAL SYSTEM FUNCTIONS»(ref-139754-S22891888092002050800000) under SELF-DIAGNOSTIC SYSTEM. Select ALL ON mode. Push START to turn outputs on. Push STOP to turn outputs off. If vehicle enters output test mode, go to next step. If vehicle will not enter output test mode, see «SCAN TOOL UNABLE TO COMMUNICATE»(ref-139754-S06692093982002050800000) under SELF-DIAGNOSTIC SYSTEM.
  2. Disconnect transaxle harness connector. Inspect condition of connector and repair as needed. Turn ignition on. Using DVOM, connect positive lead to transaxle harness connector terminal No. 5. see scheme 18 Connect negative lead to transaxle harness connector terminal No. 10. While monitoring DVOM, press START and STOP to cycle solenoid output on and off. If voltage changes at least.5 volt, go to step 5. If voltage does not change as specified, go to next step.
  3. Ensure ignition switch is turned to OFF position. Disconnect PCM 104-pin connector, and inspect it for damaged terminals, corrosion and loose wires. Repair as necessary. Install breakout box, leaving PCM disconnected. Measure and record resistance between terminal No. 5 on transaxle harness connector and breakout box test pins No. 71 and 97. Measure and record resistance between terminal No. 10 on transaxle harness connector and breakout box test pin No. 102 (on Cougar) or test pin No. 20 (on Escape and Tribute). If any resistance reading is 5 ohms or more, repair open circuit. Connect all components. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. Disconnect breakout box. If each resistance reading is less than 5 ohms, go to next step.
  4. Measure and record resistance between breakout box test pins No. 102 on Cougar or test pin No. 20 on Escape and Tribute, and pins No. 24, 52, 71, 77, 97 and 103. If all resistance readings are more than 10 k/ohms, go to next step. If any resistance reading is 10 k/ohms or less, repair short circuit. Connect all components. Disconnect breakout box. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.
  5. Connect transmission tester to transaxle. Perform solenoid voltage test. See transmission tester instructions. If solenoid activates (Green LED on), go to next step. If LED turns Red (shorted to VPWR) or if solenoid does not activate LED (shorted to ground or open circuit), go to step 7.
  6. Connect PCM 104-pin connector. Perform test drive using transmission tester. Set BENCH/DRIVE switch to DRIVE mode. Rotate gear selector switch to 1st gear position. Perform 3-2T/CCS testing following tester instructions. If transaxle engine braking does not occur when switch is released, go to next step. If transaxle engine braking occurs when switch is released, replace PCM. See «POWERTRAIN CONTROL MODULE»(ref-139754-S16632634802002050800000) under REMOVAL & INSTALLATION. Connect all components. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Disconnect breakout box and repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.
  7. Set transmission tester BENCH/DRIVE switch to BENCH position. Set gear select switch to OHMS CHECK position. Measure and record resistance between VPWR jack and 3-2T/CCS jack on transmission tester. If resistance readings are 3.75-5.92 ohms, go to next step. If any resistance reading is not 3.75-5.92 ohms, replace faulty transmission control solenoid body assembly. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM.
  8. Check continuity between BAT (-) jack and 3-2T/CCS jack on transmission tester. If continuity exists, replace faulty transmission control solenoid body assembly. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. If continuity does not exist, see appropriate SYMPTOM DIAGNOSIS under «TROUBLE SHOOTING»(ref-139754-S28521171952002050800000).

TEST H: SOLENOID MECHANICAL FAILURE

Note. After each service or repair procedure has been completed, reconnect all components. Clear DTCs and repeat QUICK TEST. See RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST) under SELF-DIAGNOSTIC SYSTEM. Ensure all EEC-V systems are working properly and DTCs are no longer present.

  1. Ensure transaxle harness connector is fully seated. Ensure gearshift lever is in "P" position. Connect NGS tester or equivalent to DLC. Perform «KEY ON ENGINE OFF (KOEO) SELF-TEST»(ref-139754-S34664706792002050800000) until continuous memory codes have been displayed. Confirm DTCs P1714 and/or P1715 are still present. If any DTCs for shift solenoids or TFT sensor are present, repair those DTCs first. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Perform «TRANSAXLE DRIVE CYCLE TEST»(ref-139754-S36486977362002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. If no other DTCs are present, replace faulty transmission control solenoid body assembly. See appropriate AUTOMATIC article in TRANSMISSION SERVICING. Go to next step.
  2. Perform «TRANSAXLE DRIVE CYCLE TEST»(ref-139754-S36486977362002050800000) under SELF-DIAGNOSTIC SYSTEM. If transaxle upshifts and downshifts correctly, go to next step. If transaxle does not upshift or downshift correctly, see appropriate SYMPTOM DIAGNOSIS under «TROUBLE SHOOTING»(ref-139754-S28521171952002050800000) .
  3. Ensure gearshift lever is in "P" position. Connect NGS tester or equivalent to DLC. Perform «KEY ON ENGINE OFF (KOEO) SELF-TEST»(ref-139754-S34664706792002050800000) until continuous memory codes have been displayed. If DTCs P1714 and/or P1715 are still present, replace PCM. See «POWERTRAIN CONTROL MODULE»(ref-139754-S16632634802002050800000) under REMOVAL & INSTALLATION. Clear DTCs. See «CLEARING DIAGNOSTIC TROUBLE CODES»(ref-139754-S02188507652002050800000) under SELF-DIAGNOSTIC SYSTEM. Repeat QUICK TEST. See «RETRIEVING DIAGNOSTIC TROUBLE CODES (QUICK TEST)»(ref-139754-S01576406042002050800000) under SELF-DIAGNOSTIC SYSTEM. Perform «TRANSAXLE DRIVE CYCLE TEST»(ref-139754-S36486977362002050800000) under SELF-DIAGNOSTIC SYSTEM. If DTCs P1714 and/or P1715 are not present, test is complete. If concern still exists, see appropriate SYMPTOM DIAGNOSIS under «TROUBLE SHOOTING»(ref-139754-S28521171952002050800000) .

More articles — Diagnosis - CD4E Automatic Transmission