Control Module: Service and Repair

Transmission Control Module (TCM)

Service Repair No - 44.15.46

Special Service Tools





Removal

NOTE:
The transmission control module (TCM) is part of the main control valve body and cannot be serviced separately.

1. Disconnect the battery ground cable.

WARNING: Do not work on or under a vehicle supported only by a jack. Always support the vehicle on safety stands.

2. Raise and support the vehicle.
3. Remove the fluid pan.
4. Disconnect the electrical connector.





5. Remove and discard the electrical connector sleeve.
^ Release the retainer.





6. Remove the main control valve body.
^ Position a container to collect spillage.
^ Remove the 10 Torx screws.





7. Using the special tool, remove the 4 seals.
8. Remove the seal block.





Installation

CAUTION: Make sure that when fully fitted, all seals protrude by the same amount.

CAUTION: Engage the selector lever with the groove in the piston rod.

1. Install the main control valve body.
^ Clean the component mating faces.
^ Install new seals.
^ Install a new seal block.
^ Tighten the Torx screws to 8 Nm (6 ft. lbs.).





2. Install a new electrical connector sleeve.
^ Secure with retainer.

3. Connect the electrical connector.
4. Install the fluid pan.
5. Connect the battery ground cable.
6. Calibrate a new main control valve body using T4.