Faulty Signal
Faulty signal
Replacing the component
Replace the sun roof switch. See Switch sun roof, replacing Service and Repair.
Check that the function is now OK.
Is the function OK?
Yes - Verification
No - Checking the cable
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Checking the cable
Check the wiring between the sun roof switch and the roof lamp module. Check for a short-circuit to supply voltage.
If a fault is found replace the wiring.
Other information:
- For further information about signals and other values, see Signal specification Signal Specification, Upper Electronic Module (UEM)
- Checking wiring and terminals Checking Wiring And Terminals.
Has a fault been detected?
Yes - Verification
No - Replacing the control module
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Verification
Verification
Verification
Hint: After the repair it is necessary to check that the fault has been rectified.
- Ignition off.
- Connect the connectors, install the components, etc.
- Ignition on.
Check that the sunroof control works.
Does the sunroof control work?
Yes - VERIFIED
No - VERIFICATION FAILED
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VERIFIED - Fault Found
VERIFICATION FAILED - Fault-tracing information
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Fault-tracing information
Information
Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.
Do you want to exit fault-tracing?
Yes - FAULT-TRACING FAILED
No - Attempt New Test
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Attempt New Test - Replacing the component
FAULT-TRACING FAILED - No Fault Found
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Replacing the control module
If no fault has been found, replace the sun roof module (SRM).
Other information
- To replace the sun roof module (SRM), see Sun roof module (SRM), replacing Service and Repair.
Continue - Verification
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