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Home >> Nissan-Datsun >> 2017 >> Sentra SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 83 (Audio, Visual & Navigation System (Display Audio System)) >> DTC/Circuit Diagnosis >> Power Supply And Ground Circuit >> Av Control Unit >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

  1. CHECK FUSE

    Check that the following fuses are not blown:

    Terminal No. Signal name Fuse No.
    7 ACC power supply 18 (10A)
    19 Battery power supply 26 (15A)

    Are the fuses blown?

    YES 

    Replace the blown fuse after repairing the affected circuit.

    NO 

    GO TO STEP 2  .

  2. CHECK POWER SUPPLY CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect AV control unit connector M92.
    3. Check voltage between AV control unit connector M92 and ground.
      AV control unit Ground Condition Voltage
      (Approx.)
      Connector Terminal
      M92 7 - Ignition switch: ON Battery voltage
      19 Ignition switch: OFF

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair or replace harness or connectors.

  3. CHECK GROUND CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect AV control unit connector M92 and M93.
    3. Check continuity between AV control unit connectors and ground.
      AV control unit Ground Continuity
      Connector Terminal
      M92 20 - Yes
      M93 42

    Is the inspection result normal?

    YES 

    Inspection End.

    NO 

    Repair or replace harness or connectors.