Signal Too High. Permanent Fault

Signal too high. Permanent fault

Checking the component




- Ignition off
- Remove the light switch module (LSM).
Check the Light Switch Module (LSM) and the connector (3/111).









Was a fault detected?

Yes - Verification

No - Checking the signal cable

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Checking the signal cable
Check the cable between the light switch module (LSM) terminal #3 (3/111) and central electronic module (CEM) terminal #18A. Check for a short-circuit to supply voltage.
Remedy as necessary.

Other information:
- For information about the central electronic module (CEM), see Central electronic module (CEM), replacing Central Electronic Module (CEM), Replacing
- To replace the light switch module (LSM), see Switches lights, replacing Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals.













Was a fault detected?

Yes - Verification

No - Fault-tracing information

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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 connectors, install components etc.
- Ignition on.
Turn up and down and see if the light changes.

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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FAULT-TRACING FAILED - No Fault Found

Attempt New Test - Checking the component

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