B2575

B2575

Malfunctioning circuit for Xenon lamp or Xenon lamp broken


WARNING
^ HIGH TENSION
The AHL control module and xenon headlamp ignition transformer generate voltages in excess of 23 000 V. This voltage is potentially lethal to individuals with a weak heart or pacemaker. Treat this system with great respect and turn off the ignition before working on the system's components.
^ Read through Safety and handling instructions, headlamps with xenon bulbs before starting.


Fault symptoms
Xenon lamp malfunction.
Warning lamp on in MIU.

Enable criteria
Xenon lamp on.

Fault criteria
Break or lamp current exceeds 3.5 A.

System reaction to a fault
Control unit for the faulty headlamp cuts the output to the headlights.

Checking the wiring harness
Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short-circuits in the leads. Observe the multimeter, test lamp or diagnostic tool during the test.