4Wd Control Switch (W/O Combination Switch) On-Vehicle Inspection


  1. INSPECT TRANSFER POSITION SWITCH

4Wd Control Switch (W/O Combination Switch) -- On-Vehicle Inspection



1. INSPECT TRANSFER POSITION SWITCH


  1. Check the harness and connector (4 wheel drive control ECU - battery and body ground).



      Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Vf4Bm Transfer 4Wd Awd.Transfer System.4Wd Control Switch (W/O Combination Switch) On-Vehicle Inspection

    1. Measure the voltage according to the value(s) in the table below.

      Standard Voltage:
      Tester Connection
      		Switch Condition
      		Specified Condition
      G54-3 (IG) - Body ground
      		Ignition switch ON
      		11 to 14 V
      Text in Illustration
      *a
      		Component with harness connected
      (4 wheel drive control ECU)
      If the result is not as specified, inspect the harness, fuse or connector. If the harness or connector is malfunctioning, repair or replace the harness or connector. If the harness or connector is normal, replace the 4 wheel drive control ECU (LandCruiser RM00000479S00VX.html).

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      G54-4 (GND) - Body ground
      		Always
      		Below 1 Ω
      If the result is not as specified, repair or replace the harness or connector.


  1. Check the harness and connector (transfer position switch - 4 wheel drive control ECU).

    1. Disconnect the G53 ECU connector.

    2. Disconnect the G18 switch connector.



    3. Measure the resistance according to the value(s) in the table below.


      Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Vf4Bm Transfer 4Wd Awd.Transfer System.4Wd Control Switch (W/O Combination Switch) On-Vehicle Inspection


      Standard Resistance:
      for 1GR-FE, 1KD-FTV, 1GD-FTV:
      Tester Connection
      		Condition
      		Specified Condition
      G18-2 (LO) - G53-13 (LO)
      		Always
      		Below 1 Ω
      G18-2 (LO) - Body ground
      		Always
      		10 kΩ or higher
      G18-4 (GND) - Body ground
      		Always
      		Below 1 Ω
      for 2TR-FE, 5L-E:
      Tester Connection
      		Condition
      		Specified Condition
      G18-2 (LO) - G53-13 (LO)
      		Always
      		Below 1 Ω
      G18-2 (LO) - Body ground
      		Always
      		10 kΩ or higher
      G18-4 (GND) - Body ground
      		Always
      		Below 1 Ω
      G18-5 (HI) - G53-11 (2-4)
      		Always
      		Below 1 Ω
      G18-5 (HI) - Body ground
      		Always
      		10 kΩ or higher

      Text in Illustration
      *A
      		for 2TR-FE, 5L-E
      		-
      		-
      *a
      		Front view of wire harness connector
      (to Transfer Position Switch)
      		*b
      		Front view of wire harness connector
      (to 4 wheel drive control ECU)
      If the result is not as specified, repair or replace the harness or connector.


  1. Check the transfer position switch.

    1. Turn the ignition switch off.

    2. Connect the G18 switch connector.

    3. Connect the G53 ECU connector.



      4. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Vf4Bm Transfer 4Wd Awd.Transfer System.4Wd Control Switch (W/O Combination Switch) On-Vehicle Inspection

    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage:
      for 1GR-FE, 1KD-FTV, 1GD-FTV:
      Tester Connection
      		Switch Condition
      		Specified Condition
      G53-13 (LO) - Body ground
      		Ignition switch ON
      Transfer position switch H4
      		10.5 to 14 V
      Ignition switch ON
      Transfer position switch L4
      		Below 1.5 V
      for 2TR-FE, 5L-E:
      Tester Connection
      		Switch Condition
      		Specified Condition
      G53-11 (2-4) - Body ground
      		Ignition switch ON
      Transfer position switch H4F
      		Below 1.5 V
      Ignition switch ON
      Transfer position switch H4L
      		Below 1.5 V
      Ignition switch ON
      Transfer position switch L4L
      		10.5 to 14 V
      G53-13 (LO) - Body ground
      		Ignition switch ON
      Transfer position switch H4F
      		10.5 to 14 V
      Ignition switch ON
      Transfer position switch H4L
      		Below 1.5 V
      Ignition switch ON
      Transfer position switch L4L
      		Below 1.5 V
      Text in Illustration
      *A
      		for 2TR-FE, 5L-E
      *a
      		Component with harness connected
      (4 wheel drive control ECU)
      If the result is not as specified, check the 4 wheel drive control ECU.


  1. Check the 4 wheel drive control ECU.

    1. Disconnect the G18 switch connector.



      2. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Vf4Bm Transfer 4Wd Awd.Transfer System.4Wd Control Switch (W/O Combination Switch) On-Vehicle Inspection

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage:
      for 1GR-FE, 1KD-FTV, 1GD-FTV:
      Tester Connection
      		Switch Condition
      		Specified Condition
      G18-2 (LO) - Body ground
      		Ignition switch ON
      		10.5 to 14 V
      for 2TR-FE, 5L-E:
      Tester Connection
      		Switch Condition
      		Specified Condition
      G18-2 (LO) - Body ground
      		Ignition switch ON
      		10.5 to 14 V
      G18-5 (HI) - Body ground
      		Ignition switch ON
      		10.5 to 14 V
      Text in Illustration
      *A
      		for 2TR-FE, 5L-E
      *a
      		Front view of wire harness connector
      (to Transfer Position Switch)
      If the result is not as specified, replace the 4 wheel drive control ECU (LandCruiser RM00000479S00VX.html).
      If the result is normal, replace the transfer position switch (LandCruiser RM00000479O018X.html).