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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Driver Assistance System (BCI) (Diagnostic Trouble Codes (DTCS), Symptom Diagnosis And R & I) (Except Hybrid) >> DTC/Circuit Diagnosis >> DTC C1A24: NP Range >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK SELF-DIAGNOSIS RESULTS

    Check if "U1000" is detected other than "C1A24" in "Self Diagnostic Result" of "ICC/ADAS".

    Is "U1000" detected?

    YES 

    Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to DTC LOGIC .

    NO 

    GO TO STEP 2. 

  2. CHECK NP POSITION SWITCH SIGNAL

    Check that "NP RANGE SW" operates normally in "DATA MONITOR" of "ICC/ADAS".

    Is the inspection result normal?

    YES 

    GO TO STEP 3. 

    NO 

    GO TO STEP 4. 

  3. CHECK TCM DATA MONITOR

    Check that "SLCT LVR POSI" operates normally in "DATA MONITOR" of "TRANSMISSION".

    Is the inspection result normal?

    YES 

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

    NO 

    GO TO STEP 4. 

  4. PERFORM TCM SELF-DIAGNOSIS

    1. Perform "All DTC Reading".
    2. Check if any DTC is detected in "Self Diagnostic Result" of "TRANSMISSION".

    Is any DTC detected?

    YES 

    Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to DTC INDEX (RE0F10J).

    NO 

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

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