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Home >> Nissan-Datsun >> 2017 >> Altima Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Body Control System) >> DTC/Circuit Diagnosis >> Combination Switch Input Circuit >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Nissan Frontier. 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 INPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN

    1. Turn ignition switch OFF.
    2. Disconnect BCM and combination switch.
    3. Check continuity between BCM harness connector and combination switch harness connector.
      Fig 1: Checking Continuity Between BCM Harness Connector And Combination Switch Harness Connector
      G05382840Courtesy of NISSAN NORTH AMERICA, INC.
      Combination Switch Signal BCM Combination Switch Continuity
      Connector Terminal Connector Terminal
      INPUT 1 M18
      (A)
      36 M28
      (B)
      1 Yes
      INPUT 2 35 2
      INPUT 3 34 3
      INPUT 4 33 4
      INPUT 5 32 5

    Does continuity exist?

    YES 

    GO TO STEP 2  .

    NO 

    Repair or replace harness.

  2. CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT

    Check for continuity between BCM harness connector and ground.

    Fig 2: Checking Continuity Between BCM Harness Connector And Ground
    G05382841Courtesy of NISSAN NORTH AMERICA, INC.
    Combination Switch Signal BCM Ground Continuity
    Connector Terminal
    INPUT 1 M18 36 No
    INPUT 2 35
    INPUT 3 34
    INPUT 4 33
    INPUT 5 32

    Does continuity exist?

    YES 

    Repair or replace harness.

    NO 

    GO TO STEP 3  .

  3. CHECK COMBINATION SWITCH

    Check combination switch. Refer to SYMPTOM TABLE .

    Is the check result normal?

    YES 

    Replace BCM. Refer to REMOVAL AND INSTALLATION .

    NO 

    Replace combination switch (applicable parts). Refer to REMOVAL AND INSTALLATION .