AFL / B3420 02
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Message appears in display.
Headlamp beam adjustment not working.
Rear Axle Sensor Circuit, Short to Ground
Fault symptom
Message appears in display.
Headlamp beam adjustment not working.
On-board diagnosis
Type of diagnosis:
Enable criteria:
Fault criteria:
| Control module input short-circuit to ground for more than 0.16 s. |
System reaction to a fault:
| Headlamp beam adjustment is switched off. |
| Headlamp reflectors adjusted to a lower position. |
OK report:
| Fault criteria NOT fulfilled. |
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
Before fault diagnosis begins, read the document "Safety and handling directions, xenon lights" under Technical description.
