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.

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

1. Raise and support the vehicle.
2. Remove the fluid pan.





3. Disconnect the electrical connector.








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





5. Remove the valve body.
^ Position a container to collect spillage.
^ Remove the 10 Torx screws.
6. Using the special tool, remove the 4 seals.





7. Remove the seal block.

Installation





1. 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.

Install the 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. Calibrate a new main control valve body using T4.