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AHL / B1001 08

Read the instructions below then start the fault diagnostic procedure.

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

  B1001 08


Control Module, Sensors Out of Range at Calibration

Fault symptom

Message appears in display.

Headlamp beam adjustment not working.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Diagnosis is performed with the diagnostic instrument during calibration.

Fault criteria:

Front or rear load angle sensor is outside calibration range during calibration.

System reaction to a fault:

Stepping motors switched off in calibration mode.
Headlamp beam adjustment is switched off.

Diagnostic help

IMPORTANT

See "Safety and handling directions, xenon headlamps".
Refer to document, "Calibration of AHL control modules".
DTC can be generated if any of the height sensors are incorrectly fitted.

Diagnostic help

Functions in the diagnostic tool related to the fault: