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Home >> Infiniti >> 2011 >> M37 Base >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Driver Assistance System - ADAS Control Unit - M37/M56 >> [ADAS Control Unit] >> DTC/Circuit Diagnosis >> Power Supply And Ground Circuit >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK FUSES

    Check if any of the following fuses are blown:

    FUSE LIST

    Signal name Fuse No.
    Ignition power supply 46

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Replace the blown fuse after repairing the affected circuit if a fuse is blown.

  2. CHECK ADAS CONTROL UNIT POWER SUPPLY CIRCUIT

    Check voltage between ADAS control unit harness connector and ground.

    VOLTAGE REFERENCE CHART

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

    Is the inspection result normal? 

    YES: GO TO 3.

    NO: Repair the ADAS control unit power supply circuit.

  3. CHECK ADAS CONTROL UNIT GROUND CIRCUIT
    1. Turn the ignition switch OFF.
    2. Disconnect the ADAS control unit connector.
    3. Check for continuity between ADAS control unit harness connector and ground.
      CONTINUITY REFERENCE CHART

      ADAS control unit Ground Continuity
      Connector Terminal
      B50 6 Existed

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Repair the ADAS control unit ground circuit.

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