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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 116 (Engine Control System (DTC/Circuit Diagnosis) (VQ35DE) (Except Hybrid) (3 Of 3)) >> DTC/Circuit Diagnosis >> DTC P1574: ASCD Vehicle Speed Sensor >> DTC Logic >> DTC Confirmation Procedure

DTC Confirmation 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. PRECONDITIONING

    If DTC Confirmation Procedure has been previously conducted, always perform the following 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 2. 

  2. PERFORM DTC CONFIRMATION PROCEDURE

    1. Start engine (VDC switch OFF).
    2. Drive the vehicle at more than 40 km/h (25 MPH).
      CAUTION:

      Always drive vehicle at a safe speed.

      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. 

    3. Check DTC.

    Is DTC detected?

    YES 

    Proceed to DIAGNOSIS PROCEDURE .

    NO 

    INSPECTION END

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