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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 1979 (Automatic Transmission (Re5F22A)) >> DTC P0710: A/T Fluid Temperature Sensor Circuit >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2005 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 "A/T" with "DATA MONITOR" mode in CONSULT-II.
      Fig 1: CONSULT-II Display - DATA MONITOR
      G02475936Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Read out the value of "FLUID TEMP SE".
      Fig 2: AT Fluid Temperature Sensor - Temperature Versus Voltage Specifications
      G02475935Courtesy 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 - FTS .
      Fig 3: Checking Voltage Between TCM Connector Terminals 41 & 42
      G02475938Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 4: TCM Connector E142 Voltage Specification Chart
      G02475937Courtesy 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.
      Fig 5: Checking Resistance Between TCM Connector E142 Terminals 41 & 42
      G02475940Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 6: TCM Connector E142 Resistance Specifications Chart
      G02475939Courtesy 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.
      Fig 7: Checking Resistance Between Terminal Cord Assembly Harness Connector Terminals 4 & 8
      G02475942Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 8: Terminal Cord Assembly Harness Connector Resistance Specifications Chart
      G02475941Courtesy of NISSAN MOTOR CO., U.S.A.

    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.
      Fig 9: Checking Resistance Between Terminal Cord Assembly Connector Terminals 4 & 8 - A/T Fluid Temperature Sensor
      G02475944Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 10: Terminal Cord Assembly Connector Terminals 4 & 8 Resistance Specifications Chart
      G02475943Courtesy 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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