Control Module: Service and Repair

1. Notes and cautions

CAUTION:
- When transferring the Transmission Control Module (TCM) between different cars be sure to make a note of any Diagnostic Trouble Codes (DTCs) before removing the TCM from the car.
- Turn off the ignition before removing the TCM from the car.

NOTE:
- Always check the TCM and control module box connector have the required pins and sockets and that these have not been pressed out of their locking positions.
- Damaged or loose pins or sockets can cause a malfunction.





2. Removing the TCM
- Ignition OFF
- Open control module box
- Remove the TCM (slot 3 nearest the right fender).





3. Inserting control module TCM
- Check that none of the pins or sockets on the connector are damaged.
- Install new TCM.
- Ignition ON.
- Read off any DTCs set and then clear them.





4. Adaptation of the throttle position TP signal
- The TP signal must be adapted whenever a new control module is installed.
- Proceed as follows:
Block all four wheels
Start engine.

NOTE: Apply parking brake and press down hard on the brake pedal with left foot during the entire procedure.

Set gearshift selector to position D
Fully depress the Accelerator Pedal (AP) so the kickdown switch closes.
Keep the AP fully depressed for 5 seconds
Release the AP and set the gearshift selector to position P.
The TP signal is now adapted to the new TCM.