Nissan Versa (N17): Microphone signal circuit

Diagnosis Procedure

Regarding Wiring Diagram information, refer to AV"Wiring Diagram".

1.CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND MICROPHONE

1. Turn ignition switch OFF.

2. Disconnect Bluetooth control unit connector B33 and microphone connector R15.

3. Check continuity between Bluetooth control unit connector B33 and microphone connector R15.

4. Check continuity between Bluetooth control unit connector B33 and ground.

Are continuity results as specified?

YES >> GO TO 2

NO >> Repair harness or connectors.

2.CHECK MICROPHONE POWER SUPPLY

1. Connect Bluetooth control unit connector B33 and microphone connector R15.

2. Turn ignition switch ON.

3. Check voltage between microphone connector R15 and ground.

Is the voltage reading as specified?

YES >> GO TO 3

NO >> Replace Bluetooth control unit. Refer to AV "Removal and Installation".

3.CHECK MICROPHONE SIGNAL

Check signal between terminals of Bluetooth control unit connector B33.

Were voltage readings as specified?

YES >> Replace Bluetooth control unit. Refer to AV "Removal and Installation".

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