Operation CHARM: Car repair manuals for everyone.

Signal Too Low






Signal too low

Checking the status
Check if the fault is permanent or intermittent by switching between high and low beam.
If the right xenon lamp does not switch between the high and low beam it means that the fault is permanent.
If the right xenon lamp switches between high and low beam it indicates that the fault was present previously but is no longer active, intermittent fault.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 cable between the central electronic module terminal #D11 and the left lamp housing terminal #5A (10/2). Check for a short-circuit to ground.
Replace the right lamp housing if no fault is found.

Other information:
- To connect the breakout box, see Connecting the breakout box Connecting the Breakout Box, Central Electronic Module (CEM)
- To access or replace the lamp housing, see Headlamp/bulb, replacing Headlamp/Bulb, Replacing
- For information about signals, see Signal specification Signal Specification
- 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 on the lighting and shift between high and low beam.

Do the xenon lamps switch between high and low beam?

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 - Checking components and wiring

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