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Home >> Infiniti >> 2004 >> M45 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission >> DTC P1721: Vehicle Speed Sensor MTR >> DTC Confirmation Procedure

DTC Confirmation Procedure

WARNING: Always drive vehicle at a safe speed.
NOTE: If "DTC Confirmation Procedure" has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

After the repair, perform the following procedure to confirm the malfunction is eliminated.

With CONSULT-II:

  1. Turn ignition switch ON. (Do not start engine.)
  2. Select "DATA MONITOR" mode for "A/T" with CONSULT-II.
  3. Start engine and maintain the following conditions for at least 5 consecutive seconds.

    ACCELE POS: 1/8 or less 

    VHCL SPEED SE: 30 km/h (17 MPH) or more 

  4. If DTC is detected, go to DIAGNOSTIC PROCEDURE  "  .