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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 2090 (Continuously Variable Transmission (CVT)) >> DTC P0710 CVT Fluid Temperature Sensor Circuit >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CVT FLUID TEMPERATURE SENSOR SIGNAL 

    With CONSULT-III 

    1. Start engine.
    2. Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "TRANSMISSION" with CONSULT-III.
    3. Read out the value of "ATF TEMP SEN".
    ATM TEMP SEN DISPLAY VALUE

    Item name Condition Display value (Approx.)
    ATF TEMP SEN When CVT fluid temperature is 20°C (68°F). 1.8 - 2.0 V
    When CVT fluid temperature is 80°C (176° F). 0.6 - 1.0 V

    Without CONSULT-III 

    1. Start engine.
    2. Check voltage between TCM connector terminals.
      VOLTAGE REFERENCE CHART

      Name Connector Terminal Temperature °C (°F) Voltage (Approx.)
      CVT fluid temperature sensor F57 47 - 42 20 (68) 2.0 V
      80 (176) 1.0 V
      Fig 1: Checking Voltage Between TCM Connector Terminals
      G04916070Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Turn ignition switch OFF.
    4. Disconnect TCM connector.
    5. Check if there is continuity between connector terminal and ground.

    OK or NG 

    OK: GO TO  5.

    NG: GO TO  2.

  2. CHECK CVT FLUID TEMPERATURE SENSOR CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect the TCM connector.
    3. Check resistance between TCM connector terminals.
    CVT FLUID TEMPERATURE SENSOR CIRCUIT

    Name Connector Terminal Temperature °C (°F) Resistance (Approx.)
    CVT fluid temperature sensor F57 47 - 42 20 (68) 6.5 kΩ
    80 (176) 0.9 kΩ
    Fig 2: Checking Resistance Between TCM Connector Terminals
    G04916071Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO  5.

    NG: GO TO  3.

  3. CHECK CVT FLUID TEMPERATURE SENSOR 
    1. Turn ignition switch OFF.
    2. Disconnect CVT unit harness connector.
    3. Check resistance between CVT unit harness connector terminals.
      CVT FLUID TEMPERATURE SENSOR

      Name Connector Terminal Temperature °C (°F) Resistance (Approx.)
      CVT fluid temperature sensor F30 17 - 19 20 (68) 6.5 kΩ
      80 (176) 0.9 kΩ
      Fig 3: Checking Resistance Between CVT Unit Harness Connector Terminals
      G04916072Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Reinstall any part removed.

    OK or NG 

    OK: GO TO  4.

    NG: Replace the transaxle assembly. Refer to "REMOVAL AND INSTALLATION ".

  4. CHECK HARNESS BETWEEN TCM AND CVT FLUID TEMPERATURE SENSOR 
    1. Turn ignition switch OFF.
    2. Disconnect the TCM connector and CVT unit harness connector.
    3. Check continuity between TCM connector terminals and CVT unit harness connector terminals.
      HARNESS BETWEEN TCM AND CVT FLUID TEMPERATURE SENSOR

      Item Connector Terminal Continuity
      TCM F57 42 Yes
      CVT unit harness connector F30 19
      TCM F57 47 Yes
      CVT unit harness connector F30 17
      Fig 4: Checking Continuity Between TCM Connector Terminals And CVT Unit Harness Connector Terminals
      G04916073Courtesy of NISSAN MOTOR CO., U.S.A.
    4. If OK, check harness for short to ground and short to power.
    5. Reinstall any part removed.

    OK or NG 

    OK: GO TO  5.

    NG: Repair or replace damaged parts.

  5. CHECK DTC 

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

    OK or NG 

    OK: INSPECTION END 

    NG: GO TO  6.

  6. CHECK TCM 
    1. Check TCM input/output signals. Refer to "TCM INPUT/OUTPUT SIGNAL REFERENCE VALUES ".
    2. If NG, re-check 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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