Wiring Harness: Service and Repair
Wiring Harness Replacement (Allison)^ Tools Required
- J 44257 Wiring Harness Connector Remover
- J 44247 Internal Wiring Harness Installer
Removal Procedure
1. Remove the oil pan and suction 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.
Important: The main transmission connector is actually one end of the internal wiring harness that protrudes through the main housing.
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).
4. Push inward on the socket or wrench to release the retaining "feet" that attach the connector (1) to the main housing.
5. Remove the wrench. Push inward on the electrical connector to separate it from the main housing.
6. Disconnect the internal wiring harness connectors (1) from solenoids A through F and from the pressure switch assembly.
Important: The solenoid retainers for E and D solenoid also retain tabs on the wiring harness U-channel. The solenoids will remain in position even after the solenoid retainers are removed.
7. Remove the solenoid retainers (2) for solenoids E and D.
8. Remove the internal wiring harness from the transmission.
Installation Procedure
1. Align the tabs (8) on the new wiring harness U-channel with the solenoid retainer slots for solenoids E (3) and D (2) on the control valve assembly. Install the solenoid retainers (14) for the E (3) and D (4) solenoids.
Important: The internal wiring harness connectors (7) and (9)-(13) should be in the correct position for installation because of their preassembled position in the U-channel.
2. Attach the internal wiring harness connectors to solenoids A through F and to the pressure switch assembly.
^ Connector (13) goes to solenoid (6).
^ Connector (12) goes to solenoid (4).
^ Connector (7) goes to solenoid (5).
^ Connector (10) goes to solenoid (2).
^ Connector (11) goes to solenoid (3).
^ Connector (9) goes to solenoid (1).
3. Push the main transmission connector (2) outward through hole (1) in the main housing 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 suction filter.
6. Connect the external wiring harness to the main transmission connector.