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Home >> Infiniti >> 2013 >> FX37 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Engine Control System - DTCS P1212 Through P2138) >> DTC P1574: ASCD Vehicle Speed Sensor >> DTC Logic >> DTC Confirmation Procedure
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DTC Confirmation Procedure

WARNING: This page is about a different car, the 2013 Infiniti FX50. 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 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 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: Go to "DIAGNOSIS PROCEDURE ".

      NO: INSPECTION END

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