Signal Too High / Signal Missing

Signal too high / Signal missing

Checking the status




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If the right-hand xenon lamp switches between high and low beam, the fault was present previously but is no longer active, intermittent fault.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

-------------------------------------------------

Checking components and wiring
Check the signal cable between the central electronic module (CEM) and the actuating motor in the right Xenon lamp for open circuit and short circuit to supply voltage.
For information about terminal numbers and cable routing, see signal description and corresponding wiring diagram.
If no fault is found, replace the right headlamp.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting the Breakout Box, Central Electronic Module (CEM)
- Signal specification Pinout Values and Diagnostic Parameters
- Headlamp/bulb, replacing Headlamp/Bulb, Replacing
- Checking wiring and terminals Checking Wiring And Terminals


Continue - Verification

-------------------------------------------------

Verification




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

------------------------

VERIFIED - Fault Found

VERIFICATION FAILED - Fault-tracing information

-------------------------------------------------

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

------------------------

FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking components and wiring

-------------------------------------------------