Signal Too Low

Signal too low

Checking the connectors and components








- Check the lamp
- Check the connector for the upper electronic module (UEM) and cargo compartment lighting/third row reading lamps. Check for contact resistance and oxidation.
Remedy as necessary
- Reinstall the connectors, components etc.

Other information:
- For further information about signals and other values, see Signal description, upper electronic module (UEM) Signal Description, Upper Electronic Module (UEM)
- Checking wiring and terminals Checking Wiring And Terminals.

Does the lamp function?

Yes - Verification

No - Checking for short-circuits to ground

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Checking for short-circuits to ground
Check the cable between control module terminal #9 and the cargo compartment lighting/third row reading lamps. Check for a short-circuit to ground.
Replace the cable if a fault is found.

Other information:
- For further information about signals and other values, see Signal description, upper electronic module (UEM) Signal Description, Upper Electronic Module (UEM)
- To connect the breakout box, see Connecting the breakout box Connecting The Breakout Box, Driver Door Module (DDM) / Passenger Door Module (PDM)
- Checking wiring and terminals Checking Wiring And Terminals.









Continue - Verification

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Verification





Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off.
- Reinstall the connectors, components etc.
- Ignition on.
Check that the relevant lamp button and lamp are functioning.

Does the lamp function?

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 - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Checking the connectors and components

FAULT-TRACING FAILED - No Fault Found

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