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Home >> Infiniti >> 2015 >> Q60 Base, 2D Convertible >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostic Trouble Codes (DTCS) P0447-P2123) (Convertible) >> DTC/Circuit Diagnosis >> DTC P0500: VSS >> M/T Models >> DTC Logic >> DTC Confirmation Procedure
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DTC Confirmation Procedure

  1. INSPECTION START

    Do you have CONSULT?

    Do you have CONSULT?

    YES 

    GO TO STEP 2  .

    NO 

    GO TO STEP 5  .

  2. PRECONDITIONING

    If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

    1. Turn ignition switch OFF and wait at least 10 seconds.
    2. Turn ignition switch ON.
    3. Turn ignition switch OFF and wait at least 10 seconds.

    GO TO STEP 3  .

  3. CHECK VEHICLE SPEED SIGNAL

    NOTE:

    This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle. 

    With CONSULT 

    1. Start engine (VDC switch OFF).
    2. Read "VHCL SPEED SE" in "DATA MONITOR" mode with CONSULT. The vehicle speed on CONSULT should exceed 10 km/h (6 MPH) when rotating wheels with suitable gear position.

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    Go to DIAGNOSIS PROCEDURE .

  4. PERFORM DTC CONFIRMATION PROCEDURE

    1. Select "DATA MONITOR" mode with CONSULT.
    2. Warm engine up to normal operating temperature.
    3. Maintain the following conditions for at least 50 consecutive seconds.
      CAUTION:

      Always drive vehicle at a safe speed.

      ENG SPEED 1, 700 - 6, 000 rpm
      COOLAN TEMP/S More than 70°C (158°F)
      B/FUEL SCHDL 6.5 - 31.8 msec
      Selector lever Except Neutral position
      PW/ST SIGNAL OFF
    4. Check 1st trip DTC.

    Is 1st trip DTC detected?

    YES 

    Go to DIAGNOSIS PROCEDURE .

    NO 

    INSPECTION END

  5. PERFORM COMPONENT FUNCTION CHECK

    Perform component function check. Refer to COMPONENT FUNCTION CHECK .

    Use component function check to check the overall function of the vehicle speed signal circuit. During this check, a 1st trip DTC might not be confirmed.

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Go to DIAGNOSIS PROCEDURE .

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