Checking components and wiring
Check the wiring between sun roof switch and roof lamp module (RCM). Check for an open-circuit. Check for a short-circuit to ground.
Check the cable between the sun roof module (SRM) terminal #7 and the roof lamp module (RCM) terminal #1B. Check for an open-circuit. Check for a short-circuit to ground.
Check the cable between the sun roof module (SRM) terminal #9 and the roof lamp module (RCM) terminal #9A. Check for an open-circuit. Check for a short-circuit to ground.
Remedy as necessary.
If no fault was found, try replacing the sun roof switch.
Other information
- To connect the breakout box, see Connecting the breakout box
- For further information about signals and other values, see Signal specification
- To access or replace the sun roof module (SRM), For -2002, see Interior lighting and upper electronic module (UEM), replacing For 2003-, see Interior lighting, replacing .
- To access or replace the sun roof switch, see Switch, sun roof, replacing
- See Checking wiring and terminals .