Wiring Harness: Service and Repair

Wiring Harness Replacement

^ Tools Required
- J 44257 Main Wiring Harness Connector Remover
- J 44247 Internal Wiring Harness Installer

Removal Procedure





1. Remove the oil pan and transmission internal oil filter.

Caution: Refer to Battery Disconnect Caution in Service Precautions.

2. Disconnect the external wiring harness from the main transmission connector. Use J 44257, if connector is not easily accessible.





3. Place a 30 mm or 1 3/16 inch 12-point deep socket or box-end wrench (2) over the main transmission connector (1).

Important: The main transmission connector is actually one end of the internal wiring harness that protrudes through the transmission case.

4. Push inward on the socket or wrench to release the retaining feet that attach the connector (1) to the transmission case.
5. Remove the wrench. Push inward on the electrical connector to separate from the transmission case.





6. Disconnect the internal wiring harness connectors (1) from the solenoids, the internal mode switch (IMS), and from the transmission fluid pressure (TFP) switch.

7. Remove the solenoid retainers (2) for SS3 and SS2.

Important: The solenoid retainers for shift solenoid 3 (SS3) and shift solenoid 2 (SS2) also retain tabs on the wiring harness U-channel. The solenoids will remain in position even after the solenoid retainers are removed.

8. Remove the internal wiring harness from the transmission.

Installation Procedure





1. Align the tabs on the new wiring harness U-channel with the solenoid retainer slots for SS3 (3) and SS2 (2) on the control valve assembly. Install the solenoid retainers (12) for the SS3 (3) and SS2 (2) solenoids.

2. Attach the internal wiring harness connectors to the solenoids, the IMS, and the TFP switch.
^ Connector (8) goes to SS 1 (5)
^ Connector (9) goes to the TFP switch (7)
^ Connector (11) goes to the MAIN MOD solenoid (19)
^ Connector (10) goes to solenoid (2)
^ Connector (13) goes to the IMS
^ Connector (14) goes to the TCC PCS (1)
^ Connector (15) goes to SS2 (2)
^ Connector (16) goes to SS 3 (3)
^ Connector (17) goes to PCS 1 (4)
^ Connector (18) goes to PCS 2 (6)

Important: The internal wiring harness connectors should be in the correct position for installation because of their pre-assembled position in the U-channel.






3. Push the main transmission connector (2) outward through hole (1) in the transmission case until the retaining feet on the connector are near the locked position.





4. Use J 44247 to seat the retaining feet on transmission connector (1).
5. Install the oil pan and transmission internal oil filter.
6. Connect the external wiring harness to the main transmission connector.