Signal Too Low. Permanent Fault

Signal too low. Permanent fault

Checking back-up (reversing) lamp switch




- Ignition off.

Hint: Check the back-up (reversing) light switch resistance between connector 54/1 terminal #24 and ground with gears 1 to 5 engaged. Resistance should be high.

The back-up gear switch should be open in all gear positions except back-up gear.
Remedy as necessary.

Other information:
- To access the back-up (reversing) lamp switch, see Back-up lamp switch, replacing Service and Repair.









Was a fault detected?

Yes - Verification

No - Checking the cable

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Checking the cable
Check the cable between the central electronic module (CEM) terminal #1A and the back-up (reversing) lamp switch terminal #2 (3/10). Check for a short-circuit to ground.
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 access the back-up (reversing) lamp switch, see Back-up lamp switch, replacing Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals.













Was a fault detected?

Yes - Verification

No - Replacing the component

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Replacing the component
Try replacing the back-up (reversing) lamp switch.

Other information:
- To access the back-up (reversing) lamp switch, see Back-up lamp switch, 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 connectors, install components etc.
- Ignition on.
Reversing light should not come on when gears 1 to 5 are selected.

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 back-up (reversing) lamp switch

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