Nissan Versa Sedan Service ManualDriver information & multimedia » Audio, visual & navigation system (AV)
Microphone signal circuit
Microphone signal circuit
Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV "Wiring Diagram".
1.CHECK MICROPHONE SIGNAL CIRCUIT CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M71 and microphone connector R15.
3. Check continuity between AV control unit connector M71 and microphone
connector R15.
4. Check continuity between AV control unit connector M71 and ground.
Is inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace harness or connectors.
2.CHECK MICROPHONE VCC VOLTAGE
1. Connect AV control unit connector M71.
2. Turn ignition switch ON.
3. Check voltage between terminals of AV control unit connector M71.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace AV control unit. Refer to AV "Removal and Installation".
3.CHECK MICROPHONE SIGNAL
1. Connect microphone connector.
2. Check signal between terminals of AV control unit connector M71.
Is the inspection result normal?
YES >> Replace AV control unit. Refer to AV "Removal and Installation".
NO >> Replace microphone. Refer to AV "Removal and Installation".
Precautions
Audio system
Diagnosis and repair workflow
Power supply and ground circuit
Front door speaker
Rear door speaker
Normal operating condition
Audio unit
Front door speaker
Rear door speaker
Roof antenna
Precautions
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Diagnosis system (audio unit)
Diagnosis system (bluetooth control unit)
Diagnosis and repair workflow
Power supply and ground circuit
Front door speaker
Rear door speaker
Bluetooth voice signal circuit
Bluetooth control signal circuit
Microphone signal circuit
Steering switch
Audio system
Normal operating condition
Audio unit
Front door speaker
Rear door speaker
Roof antenna
Steering audio control switch
Bluetooth antenna
Bluetooth control unit
Microphone
Precautions
System
Diagnosis system (audio unit)
Diagnosis system (bluetooth control unit)
Diagnosis and repair workflow
Power supply and ground circuit
Front door speaker
Rear door speaker
Bluetooth voice signal circuit
Bluetooth control signal circuit
Microphone signal circuit
Steering switch
USB Connector
Audio system
Normal operating condition
Audio unit
Front door speaker
Rear door speaker
USB Connector
Bluetooth control unit
Steering audio control switch
Bluetooth antenna
Microphone
Roof antenna
Precautions
System
Diagnosis system (AV Control unit)
Diagnosis and repair workflow
Inspection and adjustment
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U1244 GPS Antenna
U1258 Satellite radio antenna
U1263 USB
U1264 Antenna AMP
U12AA Configuration error
U12B0 Power supply voltage
U12B1 Power supply voltage
Power supply and ground circuit
Front door speaker
Rear door speaker
Rear view camera image signal circuit
Microphone signal circuit
Steering switch
USB Connector
Auxiliary input jack
Multi AV system
Normal operating condition
AV Control unit
USB Connector
Front door speaker
Rear door speaker
Satellite radio antenna
Steering audio control switch
GPS Antenna
Nissan Versa Sedan Service Manual
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