Nissan Juke Service and Repair Manual : Microphone signal circuit

Description

Power is supplied from audio unit to microphone. The microphone transmits the sound voice to the audio unit.

Diagnosis Procedure

1.CHECK CONTINUITY BETWEEN AUDIO UNIT AND MICROPHONE CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect audio unit connector and microphone connector.

3. Check continuity between audio unit harness connector and microphone harness connector.

4. Check continuity between audio unit harness connector and ground.


4. Check continuity between audio unit harness connector and ground.

Is inspection result OK?


Is inspection result OK? YES >> GO TO 2.

NO >> Repair harness or connector.

2.CHECK VOLTAGE MICROPHONE VCC

1. Connect audio unit connector.

2. Turn ignition switch ON.

3. Check voltage between audio unit harness connector and ground.

Is inspection result OK?


Is inspection result OK? YES >> GO TO 3.

NO >> Replace audio unit. Refer to AV-38, "Removal and Installation".

3.CHECK MICROPHONE SIGNAL

1. Turn ignition switch OFF.

2. Connect microphone connector.

3. Turn ignition switch ON.

4. Check signal between audio unit harness connector.

Is inspection result OK?


Is inspection result OK? YES >> Replace audio unit. Refer to AV-38, "Removal and Installation".

NO >> Replace microphone. Refer to AV-43, "Removal and Installation".

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