Reverse Light Does Not Work

Checking reverse light contact

Checking wire and replacement of component
Check the wire between the central electronic module (CEM) 1A and reverse light contact 2 (3/10) for a short circuit to ground as described in Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Also check the connector for a short circuit to ground as described in Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
If no fault is found on the wire, check the function of the reversing lamp switch.

Hint: If brake light contact is closed, the voltage between 1 and 2 on the contact is 0 V.

Do the necessary corrective action.

Additional information
- To access/replace the CEM connector, see Central electronic module (CEM), replacing Central Electronic Module (CEM), Replacing
- For information on signals and additional values, see Signal specification Pinout Values and Diagnostic Parameters
- To connect a test box, see Connecting the breakout box Connecting the Breakout Box, Central Electronic Module (CEM).






Continue - Fault Found

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