FixVault

Diagnostic Procedure

  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 "TURBINE REF" while driving.

      Check the value changes according to driving speed.

      Fig 1: CONSULT-II Display - Data Monitor Mode For A/T
      G02456072Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    1. Start engine.
    2. Check voltage between TCM terminal 38 and ground (measure in AC range).
      Fig 2: Checking Voltage Between TCM Terminal 38 & Ground
      G02456073Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO  3.
    2. NG: GO TO  2.
  2. DETECT MALFUNCTIONING ITEM 

    Check harness for short or open between TCM and turbine revolution sensor.

    OK or NG 

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

    Perform DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION. Refer to 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 terminal for damage or loose connection with harness connector.

    OK or NG 

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