Nissan Versa

 Sedan Service Manual

Driver information & multimedia » Audio, visual & navigation system (AV)
U12B0 Power supply voltage

DTC Logic

DTC DETECTION LOGIC

Diagnosis Procedure

1.CHECK CHARGING SYSTEM

Check the vehicle charging system. Refer to CHG "Work Flow (With EXP-800 NI or GR8-1200 NI)" or CHG-16, "Work Flow (Without EXP-800 NI or GR8-1200 NI)".

Is the inspection result normal?

YES >> GO TO 2.

NO >> Repair or replace the malfunctioning components.

2.CHECK AV CONTROL UNIT POWER SUPPLY AND GROUND CIRCUITS

Perform the AV control unit power supply and ground circuit diagnosis procedure. Refer to AV "AV CONTROL UNIT : Diagnosis Procedure".

Is the inspection result normal?

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

NO >> Repair or replace harness or connectors.

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

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

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

U1000 CAN Comm circuit

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