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Inspection Procedure

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CONNECTOR 
    1. Turn the ignition switch OFF.
    2. Disconnect the battery cable from the negative terminal.
    3. Check the terminals and connectors of the transfer control unit for damage, bend and loose connection (unit side and connector side).

    OK or NG 

    OK: GO TO 2.

    NG: Repair the terminal and connector.

  2. CHECK HARNESS FOR OPEN CIRCUIT 
    1. Disconnect the connector of transfer control unit.
    2. Check the resistance between the transfer control unit harness connector terminals.
      • Part time 4WD models
        TERMINALS RESISTANCE SPECIFICATION

        Transfer control unit harness connector Resistance (Ω)
        Connector No. Terminal No.
        M152 1 2 Approx. 54 - 66
      • All-mode 4WD models
        TERMINALS RESISTANCE SPECIFICATION

        Transfer control unit harness connector Resistance (Ω)
        Connector No. Terminal No.
        M152 7 8 Approx. 54 - 66

    OK or NG 

    OK: GO TO 3.

    NG: Repair the transfer control unit branch line.

  3. CHECK POWER SUPPLY AND GROUND CIRCUIT 

    Check the power supply and the ground circuit of the transfer control unit. Refer to "POWER SUPPLY CIRCUIT FOR TRANSFER CONTROL UNIT " (Part time 4WD models) or "POWER SUPPLY CIRCUIT FOR TRANSFER CONTROL UNIT " (All-mode 4WD models).

    OK or NG 

    OK:

    • Present error: Replace the transfer control unit. Refer to "TRANSFER CONTROL UNIT " (Part time 4WD models) or "TRANSFER CONTROL UNIT " (All-mode 4WD models).
    • Past error: Error was detected in the transfer control unit branch line.

    NG: Repair the power supply and the ground circuit.