AHL / B1325 03
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Message appears in display.
Headlamp beam adjustment not working.
Control Module, Supply Voltage Low
Fault symptom
Message appears in display.
Headlamp beam adjustment not working.
On-board diagnosis
Type of diagnosis:
Enable criteria:
Fault criteria:
| Input voltage below 9 V for more than 0.12 s. |
System reaction to a fault:
| Headlamp beam adjustment is switched off. |
OK report:
| Input voltage exceeds 9.5 V for more than 0.12 s. |
Checking the wiring harness
Jiggle the wiring harness at several points to detect intermittent breaks or short circuits. Check also the connector for oxidation or loose pins.
Diagnostic help
IMPORTANT
See "Safety and handling directions, xenon headlamps".
