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Home >> Infiniti >> 2014 >> QX60 Base, FWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Driver Assistance System (DCA) (Except Hybrid) >> Symptom Diagnosis >> DCA System Not Activated (Switch Is On) >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK CAUSE OF AUTOMATIC CANCELLATION 

    Check if there is any cancellation cause in the "CAUSE OF AUTO-CANCEL" on "WORK SUPPORT" of "ICC/ADAS" with CONSULT.

    Is it displayed? 

    Not displayed: GO TO  2.

    "OPE SW VOLT CIRC": Refer to "DTC LOGIC ".

    "VHCL SPD UNMATCH": Refer to "DTC LOGIC ".

    "IGN LOW VOLT": Refer to "DTC LOGIC ".

    "CAN COMM ERROR": Refer to "ADAS CONTROL UNIT: DTC Logic ".

    "ICC SENSOR CAN COMM ERR": Refer to "DTC LOGIC ".

    "ABS/TCS/VDC CIRC": Refer to "DTC LOGIC ".

    "APA HI TEMP": Refer to "DTC LOGIC ".

    "ECD CIRCUIT": Refer to "DTC LOGIC ".

  2. PERFORM ALL OF THE SELF-DIAGNOSIS 
    1. Perform "All DTC Reading".
    2. Check if any DTC is detected in self-diagnosis results of "ICC/ADAS". Refer to "DTC Index ".

    Is any DTC detected? 

    YES: GO TO  3.

    NO: GO TO  4.

  3. REPAIR OR REPLACE MALFUNCTIONING PARTS 

    Repair or replace malfunctioning parts identified by the self-diagnosis result.

    : GO TO  6.

  4. CHECK EACH SWITCH AND VEHICLE SPEED SIGNAL 
    1. Start the engine.
    2. Check that the following items operate normally in "DATA MONITOR" of "ICC/ADAS".
    • "VHCL SPEED SE"
    • "BRAKE SW"
    • "DYNA SW"

    Is there a malfunctioning item? 

    All items are normal: GO TO  5.

    "VHCL SPEED SE": Refer to "DTC LOGIC ".

    "BRAKE SW": Refer to "DTC LOGIC ".

    "DYNA SW": Refer to "DTC LOGIC ".

  5. REPLACE ADAS CONTROL UNIT 

    Replace the ADAS control unit. Refer to "REMOVAL AND INSTALLATION ".

    : GO TO  6.

  6. CHECK DCA SYSTEM 
    1. Erase "self-diagnosis result", and then perform "All DTC Reading" again after performing the action test. (Refer to "DESCRIPTION " for action test.)
    2. Check that the DCA system is normal.

    : INSPECTION END