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:

    The door open warning continues displaying, or does not display
    Description  The door ajar warning is displayed even though all of the doors and the trunk are closed.  The door ajar warning is not displayed even though a door or the trunk is ajar. Diagnosis Procedure 1.CHECK BCM INPUT SIGNAL Connect CONSULT and check the BC ...

    Headlamp (HI) circuit
    Description The IPDM E/R (intelligent power distribution module engine room) controls the headlamp high relay based on inputs from the BCM over the CAN communication lines. When the headlamp high relay is energized, power flows through fuses 48 and 49, located in the IPDM E/R. Power then flow ...

    U1207 AV control unit
    DTC Logic Diagnosis Procedure 1.PERFORM THE SELF-DIAGNOSIS Delete the "self-diagnosis" results of "MULTI AV". Turn ignition switch OFF. Turn ignition switch ON. Perform the self-diagnosis again. Check that the DTC is detected again. U1216 AV CONTROL UNIT DTC Logic U1217 AV ...

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