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Diagnosis Procedure

  1. CHECK INPUT SIGNAL

    With CONSULT-III 

    1. Start engine.
    2. Select "TCM INPUT SIGNALS" in "DATA MONITOR" mode for "TRANSMISSION" with CONSULT-III.
    3. Read out the value of "INPUT SPEED" while driving. Check the value changes according to driving speed.
      DISPLAY VALUE CHART

      Item name Condition Display value
      INPUT SPEED During driving (lock-up ON) Approximately matches the engine speed.

      OK or NG 

      OK: GO TO  8.

      NG: GO TO 2.

  2. CHECK INPUT SPEED SENSOR

    With CONSULT-III 

    1. Start engine.
    2. Check power supply to input speed sensor by voltage between TCM connector terminals. Refer to "WIRING DIAGRAM - AT - MAIN " and "WIRING DIAGRAM - AT - PT/SEN ".
      CONNECTOR TERMINAL CHART

      Item Connector Terminal Judgement standard (Approx.)
      TCM E31, E32 10 - 42 Battery voltage
      19 - 42
    3. If OK, check the pulse when vehicle cruises.
      ITEM CONDITION CHART

      Name Condition
      Input speed sensor When driving at 20 km/h (12 MPH), use the CONSULT-III pulse frequency measuring function.*1
      CAUTION: Connect the diagnosis data link cable to the vehicle diagnosis connector.

      *1: A circuit tester cannot be used to test this item.
      CONNECTOR TERMINAL CHART

      Item Connector Terminal Name Judgement standard (Approx.)
      TCM E32 38 Input speed sensor 360 Hz

      OK or NG 

      OK: GO TO  8.

      NG: GO TO 3.

      Fig 1: Connecting Diagnosis Data Link Cable To Vehicle Diagnosis Connector
      G06538530Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK POWER AND SENSOR GROUND
    1. Turn ignition switch OFF.
    2. Disconnect the input speed sensor harness connector.
    3. Turn ignition switch ON.
    4. Check voltage between input speed sensor harness connector terminals.
      CONNECTOR TERMINAL CHART

      Item Connector Terminal Judgement standard (Approx.)
      Input speed sensor F47 1 - 3 Battery voltage
      Fig 2: Checking Voltage Between Input Speed Sensor Harness Connector Terminals
      G06538531Courtesy of NISSAN MOTOR CO., U.S.A.
    5. Check voltage between input speed sensor harness connector terminal and ground.
      CONNECTOR TERMINAL CHART

      Item Connector Terminal Judgement standard (Approx.)
      Input speed sensor F47 1 - ground Battery voltage
      Fig 3: Checking Voltage Between Input Speed Sensor Harness Connector Terminal 1 And Ground
      G06538532Courtesy of NISSAN MOTOR CO., U.S.A.
    6. If OK, check harness for short to ground and short to power.
    7. Reinstall any part removed.

      OK or NG 

      OK: GO TO 4.

      NG - 1: Battery voltage is not supplied between terminals 1 and 3, terminals 1 and ground: GO TO  6.

      NG - 2: Battery voltage is not supplied between terminals 1 and 3 only: GO TO  7.

  4. CHECK HARNESS BETWEEN TCM AND INPUT SPEED SENSOR
    1. Turn ignition switch OFF.
    2. Disconnect the input speed sensor harness connector.
    3. Check continuity between TCM connector (A) terminal and input speed sensor harness connector (B) terminal.
      CONNECTOR TERMINAL CONTINUITY CHART

      Item Connector Terminal Continuity
      TCM E32 38 Yes
      Input speed sensor F47 2
    4. If OK, check harness for short to ground and short to power.
    5. Reinstall any part removed.
      Fig 4: Checking Continuity Between TCM Connector Terminal And Input Speed Sensor Harness Connector Terminal
      G06538533Courtesy of NISSAN MOTOR CO., U.S.A.

      OK or NG 

      OK: GO TO 5.

      NG: Repair open circuit or short to ground or short to power in harness or connectors.

  5. CHECK TCM
    1. Check TCM input/output signal. Refer to "TCM TERMINAL AND REFERENCE VALUE ".
    2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.

      OK or NG 

      OK: GO TO  8.

      NG: Repair or replace damaged parts.

  6. CHECK HARNESS BETWEEN TCM AND INPUT SPEED SENSOR (POWER)
    1. Turn ignition switch OFF.
    2. Disconnect the input speed sensor harness connector.
    3. Check continuity between TCM connector (A) terminals and input speed sensor harness connector (B) terminal. Refer to "CIRCUIT DIAGRAM " and "WIRING DIAGRAM - AT - MAIN ".
      CONNECTOR TERMINAL CONTINUITY CHART

      Item Connector Terminal Continuity
      TCM E31 10 Yes
      Input speed sensor F47 1
      TCM E31 19 Yes
      Input speed sensor F47 1
      Fig 5: Checking Continuity Between TCM Connector Terminals And Input Speed Sensor Harness Connector Terminal
      G06538534Courtesy 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: 10A fuse (No. 49, located in the IPDM E/R) or ignition switch are malfunctioning.

      NG: Repair open circuit or short to ground or short to power in harness or connectors.

  7. CHECK HARNESS BETWEEN TCM AND INPUT SPEED SENSOR (GROUND)
    1. Turn ignition switch OFF.
    2. Disconnect the input speed sensor harness connector.
    3. Check continuity between TCM connector (A) terminal and input speed sensor harness connector (B) terminal.
      CONNECTOR TERMINAL CONTINUITY CHART

      Item Connector Terminal Continuity
      TCM E32 42 Yes
      Input speed sensor F47 3
    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 open circuit or short to ground or short to power in harness or connectors.

      Fig 6: Checking Continuity Between TCM Connector Terminal And Input Speed Sensor Harness Connector Terminal
      G06538535Courtesy of NISSAN MOTOR CO., U.S.A.
  8. CHECK DTC

    Perform "DTC CONFIRMATION PROCEDURE ".

    OK or NG 

    OK: INSPECTION END 

    NG: GO TO  5.

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