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:

    Power window motor
    DRIVER SIDE DRIVER SIDE : Description Door glass moves UP/DOWN by receiving the signal from main power window and door lock/unlock switch. DRIVER SIDE : Component Function Check 1. CHECK FRONT POWER WINDOW MOTOR LH Check that front power window motor LH operates with main power window and d ...

    Oil pressure switch signal circuit
    Description Detects the engine oil pressure and transmits the oil pressure switch signal to the IPDM E/R. Component Function Check 1.COMBINATION METER INPUT SIGNAL  Select "METER/M&A" on CONSULT.  Monitor "OIL W/L" of "DATA MONITOR" while operating ignition switc ...

    Key slot illumination
    Description Blinks when Intelligent Key insertion is required. Component Function Check 1.CHECK FUNCTION With CONSULT Check key slot illumination ("KEY SLOT ILLUMI") Active Test mode. Diagnosis Procedure Regarding Wiring Diagram information, refer to SEC-147, "Wiring Diagram" or SEC-128, ...

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    Nissan Maxima Service and Repair Manual

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