Pinpoint Test E: Transaxle Solenoid Power Control Circuit

6F50 / 6F55


Pinpoint Tests



PINPOINT TEST E: TRANSAXLE SOLENOID POWER CONTROL CIRCUIT

NOTE: Refer to the Transaxle Vehicle Harness Connector illustration within the Transaxle Connector Layouts Transaxle Connector Layouts procedure.

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E1 CHECK FOR VOLTAGE AT THE TRANSAXLE VEHICLE HARNESS C168


- Disconnect: Transaxle Vehicle Harness C168 .
- Use a mirror to inspect both ends of the connector for damage or pushed-out pins, corrosion, loose wires and missing or damaged seals.
- Ignition ON.
- Measure the voltage at the transaxle vehicle harness C168-15, circuit CET25 (BU/GN).




- Is the voltage greater than 10 volts?

Yes
INSTALL a new solenoid body. REFER to Solenoid Body Assembly Solenoid Body Assembly. RECONNECT all components. TEST the system for normal operation.

No
GO to E2 .

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E2 CHECK THE TRANSAXLE SOLENOID POWER CONTROL CIRCUIT FOR AN OPEN


- Ignition OFF.
- For vehicles equipped with a 3.5L engine, disconnect PCM transaxle C175T.
- For vehicles equipped with a 3.5L GTDI engine, disconnect PCM transaxle C1381T.
- For vehicles equipped with a 3.5L engine, measure the resistance between the PCM transaxle C175T-47, circuit CET25 (BU/GN) and transaxle vehicle harness C168-15, circuit CET25 (BU/GN).




- For vehicles equipped with a 3.5L GTDI engine, measure the resistance between the PCM transaxle C1381T-50, circuit CET25 (BU/GN) and transaxle vehicle harness C168-15, circuit CET25 (BU/GN).




- Is the resistance less than 5 ohms?

Yes
GO to E3.

No
REPAIR circuit CET25 (BU/GN) for an open. RECONNECT all components. TEST the system for normal operation.

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E3 CHECK THE TRANSAXLE SOLENOID POWER CONTROL CIRCUIT FOR A SHORT TO GROUND


- Measure the resistance between the transaxle vehicle harness C168-15, circuit CET25 (BU/GN) and ground.




- Is the resistance greater than 10,000 ohms?

Yes
INSTALL a new PCM. REFER to Computers and Control Systems. RECONNECT all components. TEST the system for normal operation.

No
REPAIR circuit CET49 (BN) for a short to ground. RECONNECT all components. TEST the system for normal operation.

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