B2500 02 - 01

B2500 02

Microphone Short to Ground







Fault symptom
- Microphone not functioning.

On-board diagnosis

Type of diagnosis:
- Continuous

Enable criteria:
- Ignition ON.
- Battery voltage must be between 9 - 16 V.
- No starter motor cranking.

Fault criteria:
- Control module input short circuit to ground.

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.