Nissan Maxima Service and Repair Manual: U1310 AV control unit

Description

Part name  Description 
AV CONTROL UNIT 
  • It is the master unit of the MULTI AV system and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit.
  • AV control unit includes audio function and vehicle information function.
  • It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function.
  • It inputs the automatic brightness ON/OFF signals that are required for the display dimming control.
  • It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake). 

DTC Logic

Nissan Maxima. DTC Logic

    U1300 AV comm circuit
    Description U1300 is indicated when a communication signal malfunction occurs. U1300 is indicated along with DTCs that identify components connected to the AV control unit through communication l ...

    Power supply and ground circuit
    AV CONTROL UNIT AV CONTROL UNIT : Diagnosis Procedure 1.CHECK FUSES Check that the following fuses of the AV control unit are not blown. 2.POWER SUPPLY CIRCUIT CHECK Disconnect AV contro ...

    Other materials:

    Exhaust gas (carbon monoxide)
    WARNING Do not breathe exhaust gases; they contain colorless and odorless carbon monoxide. Carbon monoxide is dangerous. It can cause unconsciousness or death. If you suspect that exhaust fumes are entering the vehicle, drive with all windows fully open, and have the vehicle in ...

    Door switch
    Description Detects door open/close condition. Component Function Check 1. CHECK FUNCTION With CONSULT Check door switches DOOR SW-DR, DOOR SW-AS, DOOR SW-RL, DOOR SW-RR in Data Monitor mode with CONSULT. Diagnosis Procedure 1. CHECK DOOR SWITCH INPUT SIGNAL Turn ignition sw ...

    Rear window defogger and door mirror defogger do not operate
    Diagnosis Procedure 1. CHECK REAR WINDOW DEFOGGER SWITCH Check rear window defogger switch. 2. CHECK REAR WINDOW DEFOGGER RELAY Check rear window defogger relay 3. CHECK FUSES Check if any of the following fuses in fuse block (J/B) are blown. 4. CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIR ...

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