Checking Button LEDs

Checking button LEDs

Checking components and wiring
Check the cable between the control module terminal #8 and roof lamp module terminal #2A. Check for an open-circuit. Check for a short-circuit to ground.
Check the cable between the roof lamp module terminal #10A and the ground terminal 31/83 (A-post, left). Check for an open-circuit.
Remedy as necessary.
Replace the printed circuit board if no fault was found

Other information
- To connect the breakout box, see Connecting the breakout box Connecting the Breakout Box
- For further information about signals and other values, see Signal specification Signal Specification, Upper Electronic Module (UEM)
- To access or replace the printed circuit board, see Replacing interior lighting Service and Repair
- To access the sun roof control module, see Sun roof module (SRM), replacing Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals.









Continue - FAULT FOUND

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