Checking components and wiring
Check that main fuse (11A/2) in the relay/fusebox in the engine compartment is intact.
Check that fuse (11C/34) in the integrated relay/fusebox in the passenger compartment is intact.
Check the cable between sun roof module (SRM) terminal #1 and the battery. Check for a short-circuit to ground. Check for an open-circuit.
Check the cable between sun roof control module terminal #10 and ground: Check the left A-post. Check for a short-circuit to ground. Check for an open-circuit.
The upper electronic module (UEM) and sun roof module (SRM)
Check the cable between upper electronic module (UEM) terminal #8 and sun roof module (SRM) terminal #6. Check for a short-circuit to ground.
Sun roof control module and roof lamp module
Check the cable between the sun roof module (SRM) terminal #2 and the roof lamp module terminal #4B. Check for a short-circuit to supply voltage.
Check the cable between the sun roof module (SRM) terminal #8 and the roof lamp module terminal #3B. Check for a short-circuit to supply voltage.
Check the cable between sun roof module (SRM) terminal #8 and roof lamp module terminal #3B. Check for an open-circuit.
Check the cable between sun roof module (SRM) terminal #2 and roof lamp module terminal #4B. Check for an open-circuit.
Check the cable between sun roof module (SRM) terminal #3 and roof lamp module terminal #2B. Check for an open-circuit.
Check the cable between sun roof module (SRM) terminal #7 and roof lamp module terminal #1B. Check for an open-circuit.
Check the cable between the sun roof module (SRM) terminal #9 and the roof lamp module terminal #9A. Check for an open-circuit. Check for a short-circuit to ground.
Sun roof switch and roof lamp module
Check the wiring between sun roof switch and roof lamp module (RCM). Check for an open-circuit. Check for a short-circuit to supply voltage.
Remedy as necessary.
Other information
- For further information about signals and other values, see Signal specification
- To connect the breakout box, see Connecting the breakout box
- To replace the switch for the sun roof, see Switch, sun roof, replacing and Switch sun roof, replacing .
- To access the roof lamp module connector, see Interior lighting and upper electronic module (UEM), replacing and Interior lighting, replacing .
- To access the sun roof control module, see Control module, sun roof, replacing and Control module, sun roof, replacing
- With the ignition off, the voltage between control module terminal #1 and ground should be battery voltage
- See Checking wiring and terminals .
- Continue
Refer to Checking components