Signal Too Low

Signal too low

Checking for permanent or intermittent faults




- Ignition on
- Operate the sun roof to full tilt.
Check that the automatic operation of the sun roof works.

Was the function OK?

Yes - Verification

No - Checking the wiring

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Checking the wiring
Check the connector to the sun roof motor. Check for contact resistance and oxidation. Check for loose connections.

Other information
- To access the sun roof motor connector, see Electric motor, sun roof, replacing Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals.






Continue - Replacing the component

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Replacing the component








- Replace the sun roof motor. See Electric motor, sun roof, replacing Service and Repair
- Ignition off
- Reinstall the components, reconnect the connectors etc.
- Ignition on.
Check that automatic closing of the sun roof works by pressing forward the switch 2 steps.

Does the automatic closing of the sun roof work?

Yes - Verification

No - Replacing the component

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Replacing the component
Replace the sun roof control module according to Sun roof module (SRM), replacing Service and Repair.


Continue - Verification

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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 automatic sunroof closing works.

Does it 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 - Checking the wiring

FAULT-TRACING FAILED - No Fault Found

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