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 ...

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    ECM branch line circuit
    Diagnosis Procedure 1.CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). - Models without automatic drive positione ...

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    Nissan Maxima Service and Repair Manual

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