Control Module: Service and Repair

Transmission control module (TCM), replacing

Points to observe when replacing the control module

Caution! Software can only be ordered when the control module is installed in the vehicle. VIDA reads off the new control module identity which is required to order the correct software.

Caution! Wait two minutes after the ignition has been switched off. The main relay must be voltage-free before the control module can be removed from the car. If the engine cooling fan runs on after the ignition has been switched off, wait until it stops. Then wait another two minutes.

Caution! Always check that the control module and control module box connector pins and sleeves are not bent or damaged. This may have caused the fault.

Preparations for replacement





Remove:
- the cable from the battery negative terminal. See Battery, disconnecting Battery Disconnecting
- the cover over the control module.

Removing the control module





Note! Do not touch the control module terminal pins with your fingers. Static electricity may damage components in the control module.

Insert tool 999 5722 Wrench 999 5722 Wrench (1) in the car around the control module. Move the upper section of the tool backwards as far as it will go (2). Pull up the tool.
Carefully pull up the control module.

Installing the control module




Carefully press the control module down into the grooves on the inside of the control module box. Press down all the way.
Insert tool 999 5722 Wrench 999 5722 Wrench around the control module.
Move the upper section of the tool forwards to stop and pull it up.
Press the cover into place over the control modules.
Check that the air ducts are correctly positioned.
Connect the battery negative lead. First read Battery, disconnecting Battery Disconnecting.

Ordering software
Order applicable software. Programming and Relearning






Finishing
Check that no diagnostic trouble codes have been stored during the repair.