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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Warning Systems >> Intelligent Cruise Control System (ICC) (Diagnostic Trouble Codes (DTCS), Symptom Diagnosis And R & I) (Except Hybrid) >> Symptom Diagnosis >> ICC System Cannot Be Set (Main Switch Turns On/Off) >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK CAUSE OF AUTOMATIC CANCELLATION

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

    Is it displayed?

    Not displayed 

    GO TO STEP 2. 

    "OPE SW VOLT CIRC" 

    Refer to DTC LOGIC .

    "VHCL SPD UNMATCH" 

    Refer to DTC LOGIC .

    "IGN LOW VOLT" 

    Refer to DTC LOGIC .

    "ECM CIRCUIT" 

    Refer to DTC LOGIC .

    "CAN COMM ERROR" 

    Refer to DTC LOGIC .

    "ICC SENSOR CAN COMM ERR" 

    Refer to DTC LOGIC .

    "ABS/TCS/VDC CIRC" 

    Refer to DTC LOGIC .

    "ECD CIRCUIT" 

    Refer to DTC LOGIC .

  2. PERFORM THE SELF-DIAGNOSIS

    1. Perform "All DTC Reading".
    2. Check if any DTC is detected in "Self Diagnostic Result" of "ICC/ADAS"" of "LASER/RADAR". Refer to DTC INDEX (ICC/ADAS) or DTC INDEX (LASER/RADAR).

    Is any DTC detected?

    YES 

    GO TO STEP 3. 

    NO 

    GO TO STEP   4 . 

  3. REPAIR OR REPLACE MALFUNCTIONING PARTS

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

    GO TO STEP   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"
      • "D RANGE SW"
      • "SET/COAST SW"
      • "BRAKE SW"
      • "PKB SW"

    Is there a malfunctioning item?

    All items are normal 

    GO TO STEP 5. 

    "VHCL SPEED SE" 

    Refer to DTC LOGIC .

    "D RANGE SW" 

    Refer to DIAGNOSIS PROCEDURE .

    "SET/COAST SW" 

    Refer to DTC LOGIC .

    "BRAKE SW" 

    Refer to DTC LOGIC .

    "PKB SW" 

    Refer to DIAGNOSIS PROCEDURE .

  5. REPLACE ADAS CONTROL UNIT

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

    GO TO STEP 6. 

  6. CHECK ICC SYSTEM

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

    INSPECTION END