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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 (Multi Av System (NAVI Without BOSE)) >> Multi Av (NAVI Without BOSE) >> DTC/Circuit Diagnosis >> U12BA MULTIFUNCTION Switch Conn >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK MULTIFUNCTION SWITCH POWER AND GROUND 

    Check the multifunction switch power and ground circuits. Refer to Diagnosis Procedure .

    Is the inspection result normal?

    YES

    GO TO 2 .

    NO

    Repair or replace harness or connectors.

  2. CHECK MULTIFUNCTION SWITCH AV COMMUNICATION CIRCUITS 
    1. Turn ignition switch OFF.
    2. Disconnect AV control unit connector M161, data link connector, combination meter connector M23 and multifunction switch connector.
    3. Check continuity between AV control unit connector M161 and multifunction switch connector M259.

      AV control unit

      Multifunction switch

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M161

      23

      M259

      4

      Yes

      24

      3

    4. Check continuity between AV control unit connector M161 and ground.

      AV control unit

      Ground

      Continuity

      Connector

      Terminal

      M161

      23

      -

      No

      24

    Is the inspection result normal?

    YES

    Replace multifunction switch. Refer to Removal and Installation .

    NO

    Repair or replace harness or connectors.