Transfer System Inspection

4LO Indicator Light:

1. Turn the ignition switch to ON.
   

2. Move the shift lever to N (vehicle is stopped).
   

3. for 1GR-FE, 1KD-FTV, 1GD-FTV:
   Change the transfer position switch from H4 to L4.
   

4. for 2TR-FE, 5L-E:
   Change the transfer position switch from H4L to L4L.
   

5. Check the 4LO indicator light.
   

   OK:

   4LO indicator light comes on or 4LO indicator light comes on after blinking.
   

   If the result is not as specified, inspect the switch, 4 wheel drive control ECU and transfer shift actuator assembly.
   If the system is normal, there may be a malfunction in the CAN communication system or combination meter. In this case, first check the CAN communication system (LandCruiser RM000003BB7017X.html). Then check the combination meter (LandCruiser RM0000012GB0COX.html).
   

Center Differential Lock Indicator Light:

1. Turn the ignition switch to ON.
   

2. for 1GR-FE, 1KD-FTV, 1GD-FTV:
   Change the center differential lock switch from Free to Lock.
   

3. for 2TR-FE, 5L-E:
   Change the transfer position switch from H4F to H4L.
   

4. Check the center differential lock indicator light.
   

   OK:

   Center differential lock indicator light comes on
   

   If the result is not as specified, inspect the switches, 4 wheel drive control ECU, transfer and shift actuator.
   If the system is normal, there may be a malfunction in the CAN communication system or combination meter. In this case, first check the CAN communication system (LandCruiser RM000003BB7017X.html). Then check the combination meter (LandCruiser RM0000012GB0COX.html).
   

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

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

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

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
G53-16 (DL) - Body ground	Ignition switch ON Center differential lock switch ON	Below 1.5 V
	Ignition switch ON Center differential lock switch OFF	9.5 to 14 V

Check the harness and connector between 4 wheel drive control ECU and transfer shift actuator assembly (multi mode transfer shift actuator).

1. Disconnect the C43 actuator connector.
   

2. Disconnect the G53 and G54 ECU connectors.
   





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

   
   
   
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   G53-7 (TL2) - C43-4 (TL2)	Always	Below 1 Ω
   G53-7 (TL2) - Body ground	Always	10 kΩ or higher
   G53-8 (TL3) - C43-5 (TL3)	Always	Below 1 Ω
   G53-8 (TL3) - Body ground	Always	10 kΩ or higher
   G53-14 (P1) - C43-9 (CDL)	Always	Below 1 Ω
   G53-14 (P1) - Body ground	Always	10 kΩ or higher
   G54-7 (TM2) - C43-1 (TM2)	Always	Below 1 Ω
   G54-7 (TM2) - Body ground	Always	10 kΩ or higher
   G54-8 (TM1) - C43-2 (TM1)	Always	Below 1 Ω
   G54-8 (TM1) - Body ground	Always	10 kΩ or higher
   C43-6 (GND1) - Body ground	Always	Below 1 Ω
   C43-10 (GND) - Body ground	Always	Below 1 Ω

   
   

   Text in Illustration

   *a

   Front view of wire harness connector (to 4 wheel drive control ECU)

   *b

   Front view of wire harness connector (to Transfer Shift Actuator Assembly)

   If the result is not as specified, repair or replace the harness or connector.
   If the harness or connector is normal, check the ECU output voltage.
   

Check the 4 wheel drive control ECU (multi mode transfer shift actuator circuit).

1. Connect the G53 and G54 ECU connectors.
   

2. Connect the C43 actuator connector.
   





3. 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
   G54-8 (TM1) - G54-4 (GND)	Ignition switch ON Center differential lock switch FREE → LOCK (During operation of multi mode transfer shift actuator motor from FREE to LOCK)	10 to 14 V
   	Ignition switch ON Center differential lock switch FREE → LOCK (Multi mode transfer shift actuator motor stopped)	Below 1.5 V
   G54-7 (TM2) - G54-4 (GND)	Ignition switch ON Center differential lock switch LOCK → FREE (During operation of multi mode transfer shift actuator motor from LOCK to FREE)	10 to 14 V
   	Ignition switch ON Center differential lock switch LOCK → FREE (Multi mode transfer shift actuator motor stopped)	Below 1.5 V
   G53-7 (TL2) - G54-4 (GND)	Ignition switch ON Center differential lock switch LOCK	Below 1.5 V
   	Ignition switch ON Center differential lock switch FREE	10.5 to 14 V
   G53-8 (TL3) - G54-4 (GND)	Ignition switch ON Center differential lock switch LOCK	10.5 to 14 V
   	Ignition switch ON Center differential lock switch FREE	Below 1.5 V
   G53-14 (P1) - G54-4 (GND)	Ignition switch ON Center differential lock switch FREE	9.5 to 14 V
   	Ignition switch ON Center differential lock switch LOCK	Below 1.5 V

   for 2TR-FE, 5L-E:

   Tester Connection	Switch Condition	Specified Condition
   G54-8 (TM1) - G54-4 (GND)	Ignition switch ON Transfer position switch H4F → H4L (During operation of multi mode transfer shift actuator motor from FREE to LOCK)	10 to 14 V
   	Ignition switch ON Transfer position switch H4F → H4L (Multi mode transfer shift actuator motor stopped)	Below 1.5 V
   G54-7 (TM2) - G54-4 (GND)	Ignition switch ON Transfer position switch H4L → H4F (During operation of multi mode transfer shift actuator motor from LOCK to FREE)	10 to 14 V
   	Ignition switch ON Transfer position switch H4L → H4F (Multi mode transfer shift actuator motor stopped)	Below 1.5 V
   G53-7 (TL2) - G54-4 (GND)	Ignition switch ON Transfer position switch H4L or L4L	Below 1.5 V
   	Ignition switch ON Transfer position switch H4F	10.5 to 14 V
   G53-8 (TL3) - G54-4 (GND)	Ignition switch ON Transfer position switch H4L or L4L	10.5 to 14 V
   	Ignition switch ON Transfer position switch H4F	Below 1.5 V
   G53-14 (P1) - G54-4 (GND)	Ignition switch ON Transfer position switch H4F	9.5 to 14 V
   	Ignition switch ON Transfer position switch H4L or L4L	Below 1.5 V

   Text in Illustration

   *a	Component with harness connected (4 wheel drive control ECU)

   If the result is not as specified, determine if a malfunction is on the ECU side or actuator side by disconnecting the connector of the transfer shift actuator, and then check the ECU output voltage.
   

Check the 4 wheel drive control ECU output voltage.

1. Disconnect the C43 actuator connector.
   

2. Connect the G53 and G54 ECU connectors.
   





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

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   C43-9 (CDL) - C43-6 (GND1)	Ignition switch ON	9.5 to 14 V
   C43-4 (TL2) - C43-6 (GND1)	Ignition switch ON	10.5 to 14 V
   C43-5 (TL3) - C43-6 (GND1)	Ignition switch ON	10.5 to 14 V

   Text in Illustration

   *a	Front view of wire harness connector (to Transfer Shift Actuator Assembly)

   If the result is not as specified, replace the 4 wheel drive control ECU (LandCruiser RM00000479S00VX.html).
   If the voltage is normal, inspect the multi mode transfer shift actuator, because the voltage applied to the motor cannot be measured.
   

Inspect the multi mode transfer shift actuator (transfer shift actuator assembly).

1. Remove the transfer shift actuator assembly (LandCruiser RM0000016PX019X.html).
   





2. Check the LOCK to FREE switch.
   Connect lines via a relay as shown in the illustration, then check that the actuator fork moves from the LOCK to FREE position.
   

   NOTICE:

   1. Perform this inspection with the actuator removed from the vehicle. If this inspection is performed with the actuator installed to the vehicle, the actuator will be damaged.
      
   2. When inspecting the actuator, operate it with the lines connected via a relay. If the lines are not connected via a relay and battery voltage is directly applied to the actuator, the actuator will be damaged.
      

   HINT:

   When performing the operation described above, use the DEF relay on the main body ECU (instrument panel junction block).

   
   
   
   
   
   
   1. After the LOCK to FREE switch is complete, inspect the center differential lock detection switch and limit switch.
      

      Standard Resistance:

      Tester Connection	Condition	Specified Condition
      4 (TL2) - 6 (GND1)	After LOCK to FREE switch is complete	0.5 MΩ or higher
      5 (TL3) - 6 (GND1)	After LOCK to FREE switch is complete	Below 12.5 Ω
      9 (CDL) - 10 (GND)	After LOCK to FREE switch is complete	0.5 MΩ or higher

      
      

      Text in Illustration

      *1	DEF Relay	-	-
      *a	Component without harness connected (Transfer Shift Actuator Assembly)	*b	LOCK to FREE





3. Check the FREE to LOCK switch.
   Connect lines via a relay as shown in the illustration, then check that the actuator fork moves from the FREE to LOCK position.
   
   

   
   
   
   
   1. After the FREE to LOCK switch is complete, inspect the center differential lock detection switch and limit switch.
      

      Standard Resistance:

      Tester Connection	Condition	Specified Condition
      4 (TL2) - 6 (GND1)	After FREE to LOCK switch is complete	Below 12.5 Ω
      5 (TL3) - 6 (GND1)	After FREE to LOCK switch is complete	0.5 MΩ or higher
      9 (CDL) - 10 (GND)	After FREE to LOCK switch is complete	Below 12.5 Ω

      
      

      Text in Illustration

      *1	DEF Relay	-	-
      *a	Component without harness connected (Transfer Shift Actuator Assembly)	*b	FREE to LOCK

      If the result is not as specified, replace the transfer shift actuator assembly (LandCruiser RM0000016PX019X.html). If the transfer shift actuator assembly is normal, replace the 4 wheel drive control ECU (LandCruiser RM00000479S00VX.html).
      

Check the harness and connector between 4 wheel drive control ECU and transfer shift actuator (high-low transfer shift actuator).

1. Disconnect the C43 actuator connector.
   

2. Disconnect the G53 and G54 ECU connector.
   





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

   
   
   
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   G53-1 (HL1) - C43-12 (HL1)	Always	Below 1 Ω
   G53-1 (HL1) - Body ground	Always	10 kΩ or higher
   G53-2 (HL2) - C43-11 (HL2)	Always	Below 1 Ω
   G53-2 (HL2) - Body ground	Always	10 kΩ or higher
   G54-2 (HM1) - C43-8 (HM1)	Always	Below 1 Ω
   G54-2 (HM1) - Body ground	Always	10 kΩ or higher
   G54-6 (HM2) - C43-7 (HM2)	Always	Below 1 Ω
   G54-6 (HM2) - Body ground	Always	10 kΩ or higher
   C43-10 (GND) - Body ground	Always	Below 1 Ω

   
   

   Text in Illustration

   *a

   Front view of wire harness connector (to 4 wheel drive control ECU)

   *b

   Front view of wire harness connector (to Transfer Shift Actuator Assembly)

   If the result is not as specified, repair or replace the harness or connector.
   If the harness or connector is normal, check the ECU output voltage.
   

Check the 4 wheel drive control ECU (high-low transfer shift actuator circuit).

1. Connect the G53 and G54 ECU connectors.
   

2. Connect the C43 actuator connector.
   





3. 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
   G54-6 (HM2) - G54-4 (GND)	Ignition switch ON Transfer position switch L4 → H4 (During operation of high-low transfer shift actuator motor from LOW to HIGH)	10 to 14 V
   	Ignition switch ON Transfer position switch L4 → H4 (High-low transfer shift actuator motor stopped)	Below 1.5 V
   G54-2 (HM1) - G54-4 (GND)	Ignition switch ON Transfer position switch H4 → L4 (During operation of high-low transfer shift actuator motor from HIGH to LOW)	10 to 14 V
   	Ignition switch ON Transfer position switch H4 → L4 (High-low transfer shift actuator motor stopped)	Below 1.5 V
   G53-1 (HL1) - G54-4 (GND)	Ignition switch ON Transfer position switch H4	10.5 to 14 V
   	Ignition switch ON Transfer position switch L4	Below 1.5 V
   G53-2 (HL2) - G54-4 (GND)	Ignition switch ON Transfer position switch H4	Below 1.5 V
   	Ignition switch ON Transfer position switch L4	10.5 to 14 V

   for 2TR-FE, 5L-E:

   Tester Connection	Switch Condition	Specified Condition
   G54-6 (HM2) - G54-4 (GND)	Ignition switch ON Transfer position switch L4L → H4L (During operation of high-low transfer shift actuator motor from LOW to HIGH)	10 to 14 V
   	Ignition switch ON Transfer position switch L4L → H4L (High-low transfer shift actuator motor stopped)	Below 1.5 V
   G54-2 (HM1) - G54-4 (GND)	Ignition switch ON Transfer position switch H4L → L4L (During operation of high-low transfer shift actuator motor from HIGH to LOW)	10 to 14 V
   	Ignition switch ON Transfer position switch H4L → L4L (High-low transfer shift actuator motor stopped)	Below 1.5 V
   G53-1 (HL1) - G54-4 (GND)	Ignition switch ON Transfer position switch H4F or H4L	10.5 to 14 V
   	Ignition switch ON Transfer position switch L4L	Below 1.5 V
   G53-2 (HL2) - G54-4 (GND)	Ignition switch ON Transfer position switch H4F or H4L	Below 1.5 V
   	Ignition switch ON Transfer position switch L4L	10.5 to 14 V

   Text in Illustration

   *a	Component with harness connected (4 wheel drive control ECU)

   If the result is not as specified, determine if the malfunction is on the ECU side or actuator side by disconnecting the connector of the transfer shift actuator, and then check the ECU output voltage.
   

Check the 4 wheel drive control ECU output voltage.

1. Connect the G53 and G54 ECU connectors.
   

2. Disconnect the C43 actuator connector.
   





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

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   C43-11 (HL2) - C43-10 (GND)	Ignition switch ON	10.5 to 14 V
   C43-12 (HL1) - C43-10 (GND)	Ignition switch ON	10.5 to 14 V

   Text in Illustration

   *a	Front view of wire harness connector (to Transfer Shift Actuator Assembly)

   If the result is not as specified, replace the 4 wheel drive control ECU (LandCruiser RM00000479S00VX.html).
   If the voltage is normal, inspect the high-low transfer shift actuator, because the voltage applied to the motor cannot be measured.
   

Inspect the high-low transfer shift actuator (transfer shift actuator assembly).

1. Remove the transfer shift actuator assembly (LandCruiser RM0000016PX019X.html).
   





2. Check the HIGH to LOW switch.
   Connect lines via a relay as shown in the illustration, then check that the actuator fork moves from the HIGH to LOW position.
   

   NOTICE:

   1. Perform this inspection with the actuator removed from the vehicle. If this inspection is performed with the actuator installed to the vehicle, the actuator will be damaged.
      
   2. When inspecting the actuator, operate it with the lines connected via a relay. If the lines are not connected via a relay and battery voltage is directly applied to the actuator, the actuator will be damaged.
      

   HINT:

   When performing the operation described above, use the DEF relay on the main body ECU (instrument panel junction block).

   
   
   
   
   
   
   1. After the HIGH to LOW switch is complete, inspect the limit switch.
      

      Standard Resistance:

      Tester Connection	Condition	Specified Condition
      12 (HL1) - 10 (GND)	After HIGH to LOW switch is complete	Below 12.5 Ω
      11 (HL2) - 10 (GND)	After HIGH to LOW switch is complete	0.5 MΩ or higher

      
      

      Text in Illustration

      *1	DEF Relay	-	-
      *a	Component without harness connected (Transfer Shift Actuator Assembly)	*b	HIGH to LOW





3. Check the LOW to HIGH switch.
   Connect lines via a relay as shown in the illustration, then check that the actuator fork moves from the LOW to HIGH position.
   
   

   
   
   
   
   1. After the LOW to HIGH switch is complete, inspect the limit switch.
      

      Standard Resistance:

      Tester Connection	Condition	Specified Condition
      12 (HL1) - 10 (GND)	After LOW to HIGH switch is complete	0.5 MΩ or higher
      11 (HL2) - 10 (GND)	After LOW to HIGH switch is complete	Below 12.5 Ω

      
      

      Text in Illustration

      *1	DEF Relay	-	-
      *a	Component without harness connected (Transfer Shift Actuator Assembly)	*b	LOW to HIGH

      If the result is not as specified, replace the transfer shift actuator assembly (LandCruiser RM0000016PX019X.html). If the transfer shift actuator assembly is normal, replace the 4 wheel drive control ECU (LandCruiser RM00000479S00VX.html).