AHL / B3415 01
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Message appears in display.
Headlamp beam adjustment not working.
Axle Sensor Supply, Short to B+
Fault symptom
Message appears in display.
Headlamp beam adjustment not working.
On-board diagnosis
Type of diagnosis:
Enable criteria:
Fault criteria:
| Control module output short-circuit to B+. |
System reaction to a fault:
| Headlamp beam adjustment is switched off. |
| Headlamp reflectors adjusted to a lower position. |
| Outputs to height sensors switched off. |
OK report:
| Fault criteria NOT fulfilled for 1,2 s. |
Checking the wiring harness
Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.
Diagnostic help
Diagnosis regards:
| Electrical fault in connecting leads or component. |
Functions in the diagnostic tool related to the fault:
| (See also description of readings/activations in diagnostic tool) |
