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AHL / B1000 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Message appears in display. Headlamp beam adjustment not working.

  B1000 00


Control Module. Internal Fault

Fault symptom

Message appears in display.

Headlamp beam adjustment not working.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.
Xenon lights on.

Fault criteria:

Control module on-board diagnostics has detected an internal fault.

System reaction to a fault:

Headlamp beam adjustment is switched off.

Diagnostic help

IMPORTANT

See "Safety and handling directions, xenon headlamps".

See "Before changing a control module" and "After fitting a control module" under Fault diagnosis, general.

Diagnostic help

Diagnosis regards:

To locate electrical faults in the control module internal electronics.

Functions in the diagnostic tool related to the fault:

See menu "All - Add/Remove"