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Home >> Nissan-Datsun >> 2003 >> Sentra SE-R Spec V >> Repair and Diagnosis >> External Pages >> Different car >> Section 1636 (Transfer Case) >> Trouble Diagnosis For System >> Actuator Position Switch >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2005 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK ACTUATOR POSITION SWITCH SIGNAL 

    With CONSULT-II 

    1. Start engine.
    2. Depress brake pedal and stop vehicle.
    3. For A/T models, set A/T selector lever to "N" position. For M/T models set M/T shift lever to neutral.
    4. Select "DATA MONITOR" mode for "ALL MODE AWD/4WD" with CONSULT-II.
    5. Read out the value of "SHIFT POS SW1", "SHIFT POS SW2", "SHIFT POS SW3", "SHIFT POS SW4".
      DIAGNOSTIC PROCEDURE (WITH CONSULT-II)

      Monitored item Condition Display value
      SHIFT POS SW1 4WD shift switch: 2WD and 4LO ON
      4WD shift switch: 4H OFF
      SHIFT POS SW2 4WD shift switch: 4LO ON
      4WD shift switch: 2WD and 4H OFF
      SHIFT POS SW3 4WD shift switch: 2WD and 4H ON
      4WD shift switch: 4LO OFF
      SHIFT POS SW4 4WD shift switch: 4H and 4LO ON
      4WD shift switch: 2WD OFF
      Fig 1: CONSULT-II Display - Data Monitor
      G03595340Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    1. Start engine.
    2. Depress brake pedal and stop vehicle.
    3. For A/T models, set A/T selector lever to "N" position. For M/T models set M/T shift lever to neutral.
    4. Check voltage between transfer control unit harness connector terminal and ground.
      DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-II)

      Connector Terminal Condition Voltage (Approx.)
      M152 10 - Ground 4WD shift switch: 2WD and 4LO 0V
      4WD shift switch: 4H Battery voltage
      11 - Ground 4WD shift switch: 4LO 0V
      4WD shift switch: 2WD and 4H Battery voltage
      12 - Ground 4WD shift switch: 2WD and 4H 0V
      4WD shift switch: 4LO Battery voltage
      13 - Ground 4WD shift switch: 4H and 4LO 0V
      4WD shift switch: 2WD Battery voltage

      OK or NG 

      1. OK: GO TO 4.
      2. NG: GO TO 2.
    Fig 2: Checking Voltage Between Transfer Control Unit Harness Connector Terminal And Ground
    G03595341Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND ACTUATOR POSITION SWITCH 
    1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
    2. Disconnect transfer control unit harness connector and the transfer control device (actuator position switch) harness connector.
    3. Check continuity between the following terminals.
      • Transfer control unit harness connector M152 terminal 10 and transfer control device (actuator position switch) harness connector F58 terminal 26.
      • Transfer control unit harness connector M152 terminal 11 and transfer control device (actuator position switch) harness connector F58 terminal 20.
      • Transfer control unit harness connector M152 terminal 12 and transfer control device (actuator position switch) harness connector F58 terminal 21.
      • Transfer control unit harness connector M152 terminal 13 and transfer control device (actuator position switch) harness connector F58 terminal 25.

        Continuity should exist. 

        Also check harness for short to ground and short to power.

    OK or NG 

    1. OK: GO TO 3.
    2. NG: Repair or replace damaged parts.
      Fig 3: Checking Continuity Between Transfer Control Unit Harness Connector M152 Terminals And Transfer Control Device Harness Connector F58 Terminals
      G03595342Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK GROUND CIRCUIT 
    1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
    2. Check continuity between transfer control device (actuator position switch) harness connector F58 terminal 22 and ground.

      Continuity should exist. 

      Also check harness for short to power.

    OK or NG 

    1. OK: GO TO 4.
    2. NG: Repair open circuit or short to power in harness or connectors.
      Fig 4: Checking Continuity Between Transfer Controls Device (Actuator Position Switch) Harness Connector F58 Terminal 22 And Ground
      G03595343Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK TRANSFER CONTROL UNIT 

    Check transfer control unit input/output signal. Refer to "TRANSFER CONTROL UNIT INPUT/OUTPUT SIGNAL REFERENCE VALUES ".

    OK or NG 

    1. OK: GO TO 5.
    2. NG: Check transfer control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.
  5. CHECK DTC 

    Perform the self-diagnosis, after driving a vehicle for a while.

    OK or NG 

    1. OK: Inspection End.
    2. NG: Replace transfer control device. Refer to "REMOVAL AND INSTALLATION ".
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