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Diagnostic Procedure

WARNING: This page is about a different car, the 2006 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK STARTER RELAY 

    With CONSULT-II 

    1. Turn ignition switch ON. (Do not start engine.)
    2. Select "SELECTION FROM MENU" in "DATA MONITOR" mode for "A/T" with CONSULT-II and check monitor "STARTER RELAY" ON/OFF.
      Fig 1: CONSULT-II Display - Data Monitor
      G04173995Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    1. Turn ignition switch ON. (Do not start engine.)
    2. Check voltage between the IPDM E/R connector and ground.
    TERMINALS VOLTAGE CHART

    Item Connector Terminal Shift position Voltage (Approx.)
    Starter relay E122 48 Ground "N" and "P" Battery voltage
    "R" and "D" 0V

    OK or NG 

    OK : GO TO  5.

    NG : GO TO 2.

    Fig 2: Checking Voltage Between IPDM E/R Connector And Ground
    G04173996Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK HARNESS BETWEEN A/T ASSEMBLY HARNESS CONNECTOR AND IPDM E/R CONNECTOR 
    1. Turn ignition switch OFF.
    2. Disconnect A/T assembly harness connector and IPDM E/R connector.
    3. Check continuity between A/T assembly harness connector and IPDM E/R connector.
      TERMINALS CONTINUITY CHART

      Item Connector Terminal Continuity
      A/T assembly harness connector F9 9 Yes
      IPDM E/R connector E122 48
    4. If OK, check harness for short to ground and short to power.
    5. Reinstall any part removed.
      Fig 3: Checking Continuity Between A/T Assembly Harness Connector And IPDM E/R Connector
      G04173997Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK : GO TO 3.

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

  3. CHECK TERMINAL CORD ASSEMBLY 
    1. Remove control valve with TCM. Refer to , "CONTROL VALVE WITH TCM AND A/T FLUID TEMPERATURE SENSOR 2 "
    2. Disconnect A/T assembly harness connector and TCM connector.
    3. Check continuity between A/T assembly harness connector terminal and TCM connector terminal.
      TERMINALS CONTINUITY CHART

      Item Connector Terminal Continuity
      A/T assembly harness connector F9 9 Yes
      TCM connector F502 8
    4. If OK, check harness for short to ground and short to power.
    5. Reinstall any part removed.
      Fig 4: Checking Continuity Between A/T Assembly Connector Terminal And TCM Connector Terminal
      G04173998Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK : GO TO 4.

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

  4. DETECT MALFUNCTIONING ITEM 

    Check the following.

    OK or NG 

    OK : Replace the control valve with TCM. Refer to , "CONTROL VALVE WITH TCM AND A/T FLUID TEMPERATURE SENSOR 2 "

    NG : Repair or replace damaged parts.

  5. CHECK DTC 

    Perform , "DTC CONFIRMATION PROCEDURE "

    OK or NG 

    OK : INSPECTION END 

    NG : GO TO 2.

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