B3420 05

B3420 05

Rear Axle Sensor Circuit, Open/Short to B+







Fault symptom
- Messages shown in SID.

On-board diagnosis

Type of diagnosis:
- Continuous

Enable criteria:
- Ignition ON.
- Xenon lights on.

Fault criteria:
- Control module input short-circuit to B+/open-circuit for more than 0.16 s.

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.