Faulty Signal

Faulty signal

Checking the status




- Ignition on.
- Switch between high and low beam.
If the left-hand Xenon lamp does not switch between high and low beam, the fault is permanent.
If the left-hand Xenon lamp switches between high and low beam, the fault was present previously but is no longer active, intermittent fault.

Continue - Checking components and wiring

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Checking components and wiring
Check the power supply and grounding point for the actuating motor in the left headlamp.
For information about terminal numbers and cable routing, see signal description and corresponding wiring diagram.
If no fault is found, replace the left headlamp.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting The Breakout Box, Central Electronic Module (CEM)
- Signal specification Signal Description, Central Electronic Module (CEM)
- Headlamp/bulb, replacing Headlamp/Bulb, Replacing
- 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.
Switch between high and low beam.

Is the function OK?

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 components and wiring

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