Body Control Module: Service and Repair

Replacing central electronic module (CEM)

Remove central electronic module (CEM)

Preparations
- Make a note of the radio code.
- Turn ignition key to position 0 and disconnect battery ground lead.

Note! Before renewing the central electronic module, read out allsettings via VIDA carcommunikation.

Remove lower panel, drivers side




- Remove the panel under the dashboard on the drivers side.
- Disconnect the courtesy lightening wiring.

Note! Procedures and components are mirrored for right-hand drive (RHD) cars.

Remove central electronic module (CEM)




- Remove four connectors from the central electronic module (CEM) (LHD cars: locking connector is on the upper side).
- Remove two screws and remove the central electronic module (CEM).

Note! Always check the CEM and connectors before bending or pins and sockets may be damaged.This may have caused the fault.

Install central electronic module (CEM)
- Position the module and tighten two screws.
- Refit the connectors (4x) in the central electronic module (CEM).

Install lower panel, drivers side
- Connect the wiring for the courtesy lighting.
- Reinstall the panel under the dashboard.
- Turn ignition to position II.
- Reconnect the battery ground lead.
- If applicable: re enter the radiocode.
- Set the correct time at the clock.

Note! Reset the settings from the central electronic module (CEM) functions via VIDA carcommunication.