Operation CHARM: Car repair manuals for everyone.

Faulty Signal. Permanent Fault






Faulty signal. Permanent fault

Replacing the component
The fault has probably occurred as a result of an internal short-circuit in the climate control module. This type of fault means that the climate control system unit must be replaced. The twilight sensor cannot be replaced independently.

Other information:
- To access or replace the climate control module, Dashboard Environment Panel (including Climate Control Module (CCM)), Replacing





Select "Continue" when the fault has been remedied.

Continue - Verification

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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 lighting signal by varying light intensity on nightfall sensor. Cover sensor, for example with hand, to get a maximum signal. Shine a torch on the sensor to obtain minimum signal.
Value should vary between approximately 0 and 15.





Is the value OK?

Yes - Verification completed

No - 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 - Exit Fault-Tracing

No - Attempt New Test

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Attempt New Test - Replacing the component

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