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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 59 (Intelligent Cruise Control System (DTC/Circuit Diagnosis) (ICC) (Except Hybrid)) >> DTC/Circuit Diagnosis >> DTC C1A15: Gear Position >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

  1. CHECK SELF-DIAGNOSIS RESULTS

    Check if "C1A03", "C1A04", or "U1000" is detected other than "C1A15" in "Self Diagnostic Result" of "ICC/ADAS".

    Is any DTC detected?

    YES 

    Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to DTC LOGIC .

    NO 

    GO TO STEP 2. 

  2. CHECK VEHICLE SPEED SIGNAL

    Check that "VHCL SPEED SE" operates normally in "DATA MONITOR" of "ICC/ADAS".

    CAUTION:

    Be careful of the vehicle speed.

    Is the inspection result normal?

    YES 

    GO TO STEP 3. 

    NO 

    GO TO STEP   7 . 

  3. CHECK GEAR POSITION

    Check that "GEAR" operates normally in "DATA MONITOR" of "ICC/ADAS".

    CAUTION:

    Be careful of the vehicle speed.

    Is the inspection result normal?

    YES 

    GO TO STEP 5. 

    NO 

    GO TO STEP 4. 

  4. CHECK GEAR POSITION SIGNAL

    Check that "GEAR" operates normally in "DATA MONITOR" of "TRANSMISSION".

    Is the inspection result normal?

    YES 

    GO TO STEP 5. 

    NO 

    GO TO STEP 6. 

  5. CHECK INPUT SPEED SENSOR SIGNAL

    Check that "INPUT SPEED" 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 6. 

  6. CHECK TCM SELF-DIAGNOSIS RESULTS

    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 (RE0F10E) or DTC INDEX (RE0F10J).

    NO 

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

  7. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS

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

    Is any DTC detected?

    YES 

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

    NO 

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

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