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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 (Exterior Lighting System (Except Hybrid)) >> DTC/Circuit Diagnosis >> Power Supply And Ground Circuit >> BCM (Body Control Module) >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX60. 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 AND FUSIBLE LINK

    Check that the following fuse and fusible link are not blown.

    Terminal No. Signal name Fuse and fusible link No.
    139 Fusible link battery power O (40A)
    131 BCM battery fuse 1 (10A)

    Is the fuse or fusible link blown?

    YES 

    Replace the blown fuse or fusible link after repairing the affected circuit.

    NO 

    GO TO STEP 2 

  2. CHECK POWER SUPPLY CIRCUIT

    1. Disconnect BCM connector M81.
    2. Check voltage between BCM connector M81 terminals 131, 139 and ground.
      BCM Ground Voltage
      (Approx.)
      Connector Terminal
      M81 131 - Battery voltage
      139

    Is the inspection result normal?

    YES 

    GO TO STEP 3 

    NO 

    Repair or replace harness or connectors.

  3. CHECK GROUND CIRCUIT

    Check continuity between BCM connector M81 terminals 134, 143 and ground.

    BCM Ground Continuity
    Connector Terminal
    M81 134 - Yes
    143

    Is the inspection result normal?

    YES 

    Inspection End.

    NO 

    Repair or replace harness or connectors.

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