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Home >> Infiniti >> 2016 >> QX50 RWD >> Repair and Diagnosis >> Accessories & Equipment >> Warning Systems >> Driver Assistance System - Blind Spot Warning (BSW) (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> Power Supply And Ground Circuit >> BSW Control Module >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK FUSES

    Check if any of the following fuses are blown:

    Signal name Fuse No.
    Ignition power supply 45

    Is the inspection result normal?

    YES 

    GO TO STEP 2. 

    NO 

    Replace the blown fuse after repairing the affected circuit if a fuse is blown.

  2. CHECK BSW CONTROL MODULE POWER SUPPLY CIRCUIT

    Check voltage between BSW control module harness connector and ground.

    Terminal Condition Voltage
    (Approx.)
    (+) (-)
    BSW control module Ground Ignition switch
    Connector Terminal
    B50 16 OFF 0 V
    ON Battery voltage

    Is the inspection result normal?

    YES 

    GO TO STEP 3. 

    NO 

    Repair the BSW control module power supply circuit.

  3. CHECK BSW CONTROL MODULE GROUND CIRCUIT

    1. Turn the ignition switch OFF.
    2. Disconnect the BSW control module connector.
    3. Check for continuity between BSW control module harness connector and ground.
      BSW control module Ground Continuity
      Connector Terminal
      B50 6 Existed

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Repair the BSW control module ground circuit.

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