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Home >> Nissan-Datsun >> 2002 >> Sentra SE-R, Automatic >> Repair and Diagnosis (Single Page) >> External Pages >> Different variant/trim >> Section 10 (Automatic Transaxle Re4F03B) >> Diagnostic Trouble Code Definitions >> DTC P0720: Vehicle Speed Sensor A/T (Revolution Sensor) >> Diagnostic Procedure
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Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK INPUT SIGNAL (WITH CONSULT-II) 
    1. Start engine.
    2. Select TCM INPUT SIGNALS in DATA MONITOR mode for A/T with CONSULT-II.
    3. Read out the value of VHCL/S SE.A/T while driving. Check the value changes according to driving speed.
      Fig 1: Checking Input Signal (With CONSULT-II)
      G02015690Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO  3.
    2. NG: GO TO 2.

  2. CHECK REVOLUTION SENSOR (WITH CONSULT-II) 
    1. Start engine.
      Fig 2: Checking Revolution Sensor (With CONSULT-II)
      G02015691Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO 3.
    2. NG: Repair or replace damaged parts.

  3. CHECK DTC 

    Perform DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE .

    OK or NG 

    1. OK: INSPECTION END 
    2. NG: GO TO 4.

  4. CHECK TCM INSPECTION 
    1. Perform TCM input/output signal inspection.
    2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

    OK or NG 

    1. OK: INSPECTION END 
    2. NG: Repair or replace damaged parts.