Test A: Shift Solenoids & Torque Converter Clutch Solenoid

NOTE: Ensure transaxle harness connector is fully seated and in good condition before proceeding.

NOTE: See OUTPUT STATE CONTROL MODES under DIAGNOSIS & TESTING for additional information.

Electronic Diagnostics Set Up

Turn ignition switch to LOCK position. Connect NGS tester to DLC. Turn ignition switch to RUN position. Using NGS tester, select the following commands:
- DIAGNOSTIC DATA LINK
- PCM
- ACTIVE COMMAND CODES
- OUTPUT STATE CONTROL
- TRANS-BENCH MODE
If vehicle enters TRANS-BENCH MODE, remain in TRANS-BENCH MODE and go to next step. If vehicle does not enter TRANS-BENCH MODE, repeat procedures to enter TRANS-BENCH MODE. If procedures fail again, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE for diagnosis of PCM.

Wiggle Test

Perform procedures as follows:
- Select PIDs to be monitored (SSA, SSB, SSC, SSD and SSE).
- Press SEND.
- Wiggle all wiring and connectors to transaxle. Monitor solenoid state(s) for changes.
- Select OFF to turn solenoid(s) off.
- Press SEND.
If suspect solenoid(s) fault state changes, repair suspect solenoid circuit(s) and retest system operation. If suspect solenoid(s) fault state does not change, go to next step.

Check Solenoid Function

Using NGS tester, turn each solenoid on and off. If solenoid(s) turns on and off and solenoid activation can be heard, go to next step. If solenoid(s) does not turn on and off and solenoid activation cannot be heard, go to step 5 .

OSC TRANS-DRIVE Test (Gear Or TCC)

Perform OSC TRANS-DRIVE MODE. Select GEAR for shift solenoids or follow procedures for GEAR in DRIVE MODE under OUTPUT STATE CONTROL MODES in DIAGNOSIS & TESTING. Select TCC for torque converter clutch. Follow procedures for TCC in DRIVE MODE under OUTPUT STATE CONTROL MODES . If transaxle upshifts/downshifts or torque converter engages/disengages when commanded, clear all DTCs and road test vehicle to verify concern is still present. If concern is still present, see SYMPTOM DIAGNOSIS under TROUBLE SHOOTING to diagnose shift or torque converter concern. If transaxle does not upshift/downshift or torque converter does not engage/disengage when commanded, go to next step.

Check For Battery Voltage

Disconnect transaxle 9-pin harness connector. Visually inspect all wires and connectors for damage. Using a voltmeter, measure voltage between ground and transaxle 9-pin harness connector (harness side) terminals No. 1, 3, 6, 8 and 9. See Figure . If any voltage is present, go to step 7 . If no voltage is present, go to next step.

Check For Shorts To Ground

Turn ignition switch to LOCK position. Using an ohmmeter, measure resistance between ground and transaxle 9-pin harness connector (harness side) terminals No. 1, 3, 6, 8 and 9. If resistances are greater than 10 k/ohms, go to step 8 . If any resistance is 10 k/ohms or less, repair short to ground in appropriate wire(s) and retest system operation.

Check For Short To Battery Voltage

Disconnect PCM 104-pin harness connector. Using a voltmeter, measure voltage between ground and transaxle 9-pin harness connector (harness side) terminals No. 1, 3, 6, 8 and 9. If any voltage is present, repair short to power in appropriate wire(s) and retest system operation. If no voltage is present, replace PCM and retest system operation.

Check For Opens

Disconnect PCM 104-pin harness connector. Install EEC-V breakout box. Using an ohmmeter, measure resistance between specified terminals. See SHIFT SOLENOID CIRCUIT CONTINUITY TEST table. If all resistances measured are less than 5 ohms, go to next step. If any resistance is greater than 5 ohms, repair open in appropriate wire(s) and retest system operation.

SHIFT SOLENOID CIRCUIT CONTINUITY TEST

Transaxle 9-Pin Harness Connector Terminal No.	Breakout Box Pin No.
(SSA) 6	73
(SSB) 8	1
(SSC) 3	82
(SSD) 9	99
(SSE) 1	102

Electrical Signal Check

Connect PCM 104-pin harness connector. Turn ignition switch to RUN position. Using a voltmeter, measure voltage between ground and transaxle 9-pin harness connector (harness side) terminal(s) No. 1, 3, 6, 8 and 9 for suspect solenoid(s). Using NGS tester, select TRANS-BENCH MODE. Select parameter SSA, SSB, SSC, SSD and/or SSE. Measure voltage of suspect solenoid(s) again while cycling appropriate solenoid(s) on and off with NGS tester. To cycle suspect solenoid(s), select ON, then press SEND. Select OFF, then press SEND. If voltage reading(s) changed, go to next step. If voltage reading(s) did not change, replace PCM and retest system operation.

Check Solenoid Resistance

Turn ignition off. Using an ohmmeter, measure resistance of suspect solenoid(s). See VALVE BODY SOLENOIDS under COMPONENT TESTS. If resistance(s) is as specified and SSA and/or SSB are suspect, go to step 12 . If resistance(s) is as specified and SSC, SSD and/or SSE are suspect, go to next step. If resistance(s) is not as specified, replace appropriate solenoid(s) and retest system operation.

Check SSC, SSD & SSE For Short To Ground

Using an ohmmeter, measure resistance between solenoid body of suspect solenoid(s) and solenoid terminal(s) No. 1 (SSE), 3 (SSC) and/or 9 (SSD). If resistance(s) is less than 5 ohms, replace appropriate solenoid(s) and retest system operation. If resistance(s) is greater than 5 ohms, go to next step.

Check Internal Transaxle Harness Continuity

Disconnect internal harness from shift solenoid assemblies. Measure and record resistance between transaxle harness connector terminal and shift solenoid connector terminal. See INTERNAL HARNESS OPEN CIRCUIT TEST table. See Figure . If resistance(s) is less than 5 ohms, replace PCM and retest system operation. If resistance(s) is greater than 5 ohms, replace internal wiring harness and retest system operation.

INTERNAL HARNESS OPEN CIRCUIT TEST

Transaxle Internal Harness Connector Component (Terminal No.)	Shift Solenoid Connector Wire Color
SSA (6)	Green/Yellow
SSB (8)	Green/Blue
SSC (3)	Green/Black
SSD (9)	Green/Orange
SSE (1)	Green/White
SSC Ground (11)	White
SSD Ground (12)	Blue
SSE Ground (10)	Green