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Diagnostic Procedure

WARNING: This page is about a different car, the 2007 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FLUID TEMPERATURE SENSOR SIGNAL 

    With CONSULT-II 

    1. Start engine.
    2. Select "DATA MONITOR" mode for "TRANSMISSION" with CONSULT-II.
    3. Read out the value of "FLUID TEMP SE".
      FLUID TEMPERATURE SENSOR CONDITION CHART

      Item name Condition Display value (Approx.)
      Fluid temperature sensor 0°C (32°F) 4.0V
      20°C (68°F) 3.0V
      80°C (176°F) 0.8V
      100°C (212°F) 0.5V
      Fig 1: CONSULT-II DATA MONITOR Screen
      G04906062Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    1. Start engine.
    2. Check voltage between TCM connector terminals 41 and 42 while warming up A/T. Refer to "WIRING DIAGRAM - AT - FTSP ".
      VOLTAGE CHART

      Connector Terminal Temperature Voltage (Approx.)
      E142 41 - 42 (ground) 0°C (32°F) 4.0V
      20°C (68°F) 3.0V
      80°C (176°F) 0.8V
      100°C (212°F) 0.5V
      Fig 2: Checking Voltage Between TCM Connector Terminals 41 And 42
      G04906063Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Turn ignition switch "OFF".
    4. Disconnect the TCM connector.
    5. Check if there is continuity between the connector terminal and ground.

    OK or NG 

    OK: GO TO  6.

    NG: GO TO 2.

  2. CHECK FLUID TEMPERATURE SENSOR CIRCUIT 
    1. Turn ignition switch "OFF".
    2. Disconnect the TCM connector.
    3. Check resistance between terminals 41 and 42.
      RESISTANCE REFERENCE CHART

      Connector Terminal Temperature Resistance (Approx.)
      E142 41 - 42 (ground) 0°C (32°F) 9.8 kΩ
      20°C (68°F) 4.2 kΩ
      80°C (176°F) 0.54 kΩ
      100°C (212°F) 0.31 kΩ
      Fig 3: Checking Resistance Between Fluid Temperature Sensor Terminals 41 And 42
      G04906064Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check if there is continuity between the connector terminal and ground.

    OK or NG 

    OK: GO TO  6.

    NG: GO TO 3.

  3. CHECK TERMINAL CORD ASSEMBLY WITH A/T FLUID TEMPERATURE SENSOR 
    1. Turn ignition switch "OFF".
    2. Disconnect terminal cord assembly harness connector.
    3. Check resistance between terminals 4 and 8.
      RESISTANCE REFERENCE CHART

      Connector Terminal Temperature Resistance (Approx.)
      F30 4 - 8 0°C (32°F) 9.8 kΩ
      20°C (68°F) 4.2 kΩ
      80°C (176°F) 0.54 kΩ
      100°C (212°F) 0.31 kΩ
      Fig 4: Checking Resistance Between Terminal Cord Assembly Connector Terminals 4 And 8
      G04906065Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Reinstall any part removed.

    OK or NG 

    OK: GO TO 4.

    NG: GO TO  5.

  4. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY 

    Check the following.

    • Open or short-circuit in the harness between TCM and terminal cord assembly.

    OK or NG 

    OK: GO TO  6.

    NG: Repair or replace damaged parts.

  5. CHECK A/T FLUID TEMPERATURE SENSOR 
    1. Remove side cover. Refer to "SIDE COVER ".
    2. Disconnect A/T fluid temperature sensor.
    3. Check resistance between terminals 4 and 8.
      RESISTANCE REFERENCE CHART

      Connector Terminal Temperature Resistance
      F30 4 - 8 10°C (°F) 5.80 - 7.09kΩ
      110°C (°F) 0.23 - 0.26kΩ
      Fig 5: Checking Resistance Between Terminal Cord Assembly Connector Terminals 4 And 8
      G04906066Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 6.

    NG: Repair or replace transmission wire. Refer to "TRANSMISSION WIRE ".

  6. CHECK DTC 

    Perform "DTC Confirmation Procedure". Refer to "DTC CONFIRMATION PROCEDURE ".

    OK or NG 

    OK: INSPECTION END 

    NG: GO TO 7.

  7. CHECK TCM 
    1. Check TCM input/output signal. Refer to "TCM INPUT/OUTPUT SIGNAL REFERENCE VALUES ".
    2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

    OK or NG 

    OK: INSPECTION END 

    NG: Repair or replace damaged parts.

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