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Home >> Infiniti >> 2017 >> QX70 RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 218 (Driver Assistance System (DTC/Circuit Diagnosis) (Hybrid)) >> Circuit Diagnosis >> Power Supply And Ground Circuit >> Driver Assistance Buzzer Control Module >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.

  1. CHECK FUSES

    Check if any of the following fuses are blown:

    Signal name Fuse No.
    Ignition power supply 22

    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 DRIVER ASSISTANCE BUZZER CONTROL MODULE POWER SUPPLY CIRCUIT

    Check voltage between driver assistance buzzer control module harness connector and ground.

    Terminal Condition Voltage
    (Approx.)
    (+) (-)
    Driver assistance buzzer control module Ground Ignition switch
    Connector Terminal
    M56 1 ON Battery voltage

    Is the inspection result normal?

    YES 

    GO TO STEP 3. 

    NO 

    Repair the driver assistance buzzer control module power supply circuit.

  3. CHECK DRIVER ASSISTANCE BUZZER CONTROL MODULE GROUND CIRCUIT

    1. Turn the ignition switch OFF.
    2. Disconnect the driver assistance buzzer control module.
    3. Check for continuity between driver assistance buzzer control module harness connector and ground.
      Driver assistance buzzer control module Ground Continuity
      Connector Terminal
      M56 5 Existed
      13

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Repair the driver assistance buzzer control module.

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