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CU GSM / B2500 08

Read the instructions below then start the fault diagnostic procedure.

Symptom: Microphone has poor pick-up efficiency.

  B2500 08


Microphone Range Error

Fault symptom

Microphone has poor pick-up efficiency.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.

Fault criteria:

Faulty signal from the microphone.

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.