If there is a malfunction, inspect the switch, ECU and transfer shift actuator. If the system is normal, there may be a malfunction in the CAN communication system or combination meter. In that case, first check the CAN communication system for LHD (), for RHD (). Then check the combination meter ().

w/o VSC:

OK:
Switch Condition Specified Condition
Turned from H4 to L4 4LO indicator light and center differential lock indicator light come on immediately or come on after blinking

HINT:

For vehicles without VSC (Vehicle Stability Control), when the transfer position switch is turned from H4 to L4, the center differential will lock.

Check the center differential lock indicator light.

Start the engine.

Push the center differential lock switch.

NOTICE:

Do not push the switch while the vehicle is turning.

Push the switch at a vehicle speed less than 100 km/h (60 mph).

Check the center differential lock indicator light.

OK:
Switch Condition Specified Condition
Pushed Center differential lock indicator light comes on immediately or comes on after blinking

w/ Rear Differential Lock:

Check the rear differential lock indicator light.

Start the engine.

Stop the vehicle.

for Automatic Transmission: Move the shift lever to N.

for Manual Transmission: Depress the clutch pedal.

Turn the transfer position switch from H4 to L4.

HINT:

The rear differential can be locked only when the following conditions are met: 1) The transfer is in low, and 2) the center differential is locked. As vehicles with a rear differential lock do not have a vehicle stability control system, these conditions will be satisfied after the transfer position switch is turned to L4, the transfer shifts to low, and the center differential locks.

Turn the differential lock switch from OFF to RR.

NOTICE:

When locking the rear differential, make sure that the vehicle speed is less than 8 km/h (5 mph).

Check the rear differential lock indicator light.

Switch Condition	Specified Condition
After transfer position switch is turned from H4 to L4, differential lock switch is turned from OFF to RR	Rear differential lock indicator light comes on immediately or comes on after blinking

If there is a malfunction, inspect the switch, ECU and differential lock shift actuator.

HINT:

The 4LO indicator light and center differential lock indicator light are both illuminated.

When the rear differential is locked, if the transfer position switch is returned to H4, the rear differential becomes free. However, since the differential lock switch is on RR, the rear differential lock indicator light blinks, and when the differential lock switch is turned to OFF, the indicator light turns off.

2. INSPECT FUSE

Remove the 4WD fuse from the main body ECU (cowl side junction block LH).

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

Standard Resistance:
Tester Connection Condition Specified Condition
4WD fuse Always Below 1 Ω

If a fuse is blown, inspect the harness connected to the fuse for a short circuit, and repair or replace the harness or replace the fuse.

3. INSPECT TRANSFER POSITION SWITCH

Remove the transfer position switch ().

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
2 (2WD) - 4 (GND2) H4 position 100 kΩ or higher
L4 position Below 1 Ω

If there is a malfunction, replace the transfer position switch.

Check the harness and connector (ECU - transfer position switch and body ground).

Disconnect the A27 ECU connector.

Disconnect the E48 transfer position switch connector.

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

Transfer System - Inspection. JF2A TRANSFER / 4WD / AWD. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Standard Resistance:
Tester Connection Condition Specified Condition
E48-2 (2WD) - A27-13 (LO) Always Below 1 Ω
E48-2 (2WD) - Body ground Always 100 kΩ or higher
E48-4 (GND2) - Body ground Always Below 1 Ω

If there is a malfunction, repair or replace the harness or connector.

4. INSPECT CENTER DIFFERENTIAL LOCK SWITCH

Remove the center differential lock switch ().

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
1 (L) - 4 (CPU) Switch is pressed and held Below 1 Ω
Switch is not pressed 100 kΩ or higher

If there is a malfunction, replace the center differential lock switch.

Check the harness and connector (ECU - center differential lock switch and body ground).

Disconnect the ECU connector.

Disconnect the center differential lock switch connector.

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

Transfer System - Inspection. JF2A TRANSFER / 4WD / AWD. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Standard Resistance:
Tester Connection Condition Specified Condition
A27-12 (DL) - G12-4 (CPU) Always Below 1 Ω
A27-12 (DL) - Body ground Always 100 kΩ or higher
G12-1 (L) - Body ground Always Below 1 Ω

If there is a malfunction, repair or replace the harness or connector.

5. INSPECT DIFFERENTIAL LOCK SWITCH (w/ Rear Differential Lock)

Remove the differential lock switch ().

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
1 (IG) - 4 (R) OFF 10 kΩ or higher
RR Below 1 Ω

If there is a malfunction, replace the differential lock switch.

Check the harness and connector (ECU - differential lock switch and body ground).

Disconnect the A27 ECU connector.

Disconnect the E87 differential lock switch connector.

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

Transfer System - Inspection. JF2A TRANSFER / 4WD / AWD. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Standard Resistance:
Tester Connection Condition Specified Condition
A27-11 (R) - E87-1 (IG) Always Below 1 Ω
A27-11 (R) - Body ground Always 100 kΩ or higher
E87-4 (R) - Body ground Always Below 1 Ω

If there is a malfunction, repair or replace the harness or connector.

6. INSPECT TRANSFER SHIFT ACTUATOR ASSEMBLY (HIGH-LOW TRANSFER SHIFT ACTUATOR)

HINT:

After inspecting the ECU power supply or transfer position switch, check the high-low transfer shift actuator.

Check the harness and connector (ECU - high-low transfer shift actuator).

Disconnect the C38 actuator connector.

Disconnect the A27 and A28 ECU connectors.

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

Transfer System - Inspection. JF2A TRANSFER / 4WD / AWD. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Standard Resistance:

Tester Connection	Condition	Specified Condition
A27-1 (HL1) - C38-4 (HL1)	Always	Below 1 Ω
A27-1 (HL1) - Body ground	Always	100 kΩ or higher
A27-2 (HL2) - C38-6 (HL2)	Always	Below 1 Ω
A27-2 (HL2) - Body ground	Always	100 kΩ or higher
A27-3 (HL3) - C38-5 (HL3)	Always	Below 1 Ω
A27-3 (HL3) - Body ground	Always	100 kΩ or higher
A27-16 (NP) - C38-3 (N)	Always	Below 1 Ω
A27-16 (NP) - Body ground	Always	100 kΩ or higher
A28-2 (HM1) - C38-1 (HM1)	Always	Below 1 Ω
A28-2 (HM1) - Body ground	Always	100 kΩ or higher
A28-6 (HM2) - C38-2 (HM2)	Always	Below 1 Ω
A28-6 (HM2) - Body ground	Always	100 kΩ or higher
C38-7 (GND) - Body ground	Always	Below 1 Ω

If there is a malfunction, repair or replace the harness or connector.

Check the high-low transfer shift actuator.

Turn the engine switch on (IG).

Stop the vehicle.

for Automatic Transmission: Move the shift lever to N.

for Manual Transmission: Depress the clutch pedal.

Check that there is an operating noise from the transfer shift actuator when the transfer position switch is turned from H4 to L4, or L4 to H4.

OK:
There is an operating noise.

HINT:

If the actuator fork cannot move from high to low, or low to high even though there is an operating noise, there may be a mechanical malfunction in the transfer.

If there is no operating noise, there may be a malfunction in the high-low transfer shift actuator. However, it may also be a result of a mechanical malfunction in the transfer, so inspect each part.

Remove the transfer shift actuator assembly ().

Check the high to low switch.

Connect lines via a relay as shown in the illustration, and check that the actuator fork moves from the high to low position.

NOTICE:

Make sure to 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.

When inspecting the actuator, make sure to 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 DEFOG relay.

Transfer System - Inspection. JF2A TRANSFER / 4WD / AWD. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

After the high to low switch is complete, check the neutral position detection switch and limit switch.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 (N) - 7 (GND)	After high to low switch is complete	100 kΩ or higher
4 (HL1) - 7 (GND)	After high to low switch is complete	100 kΩ or higher
5 (HL3) - 7 (GND)	After high to low switch is complete	100 kΩ or higher
6 (HL2) - 7 (GND)	After high to low switch is complete	Below 1 Ω

If there is a malfunction, replace the transfer shift actuator assembly.

Check the low to high switch.

Connect lines via a relay as shown in the illustration, and check that the actuator fork moves from the low to high position.

NOTICE:

Make sure to 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.

HINT:

When performing the operation described above, use the DEFOG relay.

Transfer System - Inspection. JF2A TRANSFER / 4WD / AWD. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

After the low to high switch is complete, check the neutral position detection switch and limit switch.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 (N) - 7 (GND)	After low to high switch is complete	100 kΩ or higher
4 (HL1) - 7 (GND)	After low to high switch is complete	Below 1 Ω
5 (HL3) - 7 (GND)	After low to high switch is complete	100 kΩ or higher
6 (HL2) - 7 (GND)	After low to high switch is complete	100 kΩ or higher

If there is a malfunction, replace the transfer shift actuator assembly.

7. INSPECT TRANSFER SHIFT ACTUATOR ASSEMBLY (CENTER DIFFERENTIAL LOCK ACTUATOR)

HINT:

After inspecting the ECU power supply or center differential lock switch, inspect the center differential lock actuator.

Check the harness and connector (ECU - center differential lock actuator).

Disconnect the C37 actuator connector.

Disconnect the A27 and A28 ECU connectors.

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

Transfer System - Inspection. JF2A TRANSFER / 4WD / AWD. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Standard Resistance:

Tester Connection	Condition	Specified Condition
A27-6 (TL1) - C37-4 (TL1)	Always	Below 1 Ω
A27-6 (TL1) - Body ground	Always	100 kΩ or higher
A27-7 (TL2) - C37-6 (TL2)	Always	Below 1 Ω
A27-7 (TL2) - Body ground	Always	100 kΩ or higher
A27-8 (TL3) - C37-5 (TL3)	Always	Below 1 Ω
A27-8 (TL3) - Body ground	Always	100 kΩ or higher
A27-14 (P1) - C37-3 (CDL)	Always	Below 1 Ω
A27-14 (P1) - Body ground	Always	100 kΩ or higher
A28-7 (TM2) - C37-2 (TM2)	Always	Below 1 Ω
A28-7 (TM2) - Body ground	Always	100 kΩ or higher
A28-8 (TM1) - C37-1 (TM1)	Always	Below 1 Ω
A28-8 (TM1) - Body ground	Always	100 kΩ or higher
C37-7 (GND) - Body ground	Always	Below 1 Ω

If there is a malfunction, repair or replace the harness or connector.

Check the center differential lock actuator.

Turn the engine switch on (IG).

Check that there is an operating noise from the transfer shift actuator when the center differential lock switch is pressed to switch from free to lock, or lock to free.

OK:
There is an operating noise.

HINT:

If the actuator fork cannot move from free to lock, or lock to free even though there is an operating noise, there may be a mechanical malfunction in the transfer.

If there is no operating noise, there may be a malfunction in the center differential lock actuator. However, it may also be a result of a mechanical malfunction in the transfer, so inspect each part.

Remove the transfer shift actuator assembly ().

Check the free to lock switch.

Connect lines via a relay as shown in the illustration, and check that the actuator fork moves from the free to lock position.

NOTICE:

Make sure to 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.

HINT:

When performing the operation described above, use the DEFOG relay.

Transfer System - Inspection. JF2A TRANSFER / 4WD / AWD. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

After the free to lock switch is complete, check the center differential lock detection switch and limit switch.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 (CDL) - 7 (GND1)	After free to lock switch is complete	Below 1 Ω
4 (TL1) - 7 (GND1)	After free to lock switch is complete	100 kΩ or higher
5 (TL3) - 7 (GND)	After free to lock switch is complete	100 kΩ or higher
6 (TL2) - 7 (GND1)	After free to lock switch is complete	Below 1 Ω

If there is a malfunction, replace the transfer shift actuator assembly.

Check the lock to free switch.

Connect lines via a relay as shown in the illustration, and check that the actuator fork moves from the lock to free position.

NOTICE:

Make sure to 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.

HINT:

When performing the operation described above, use the DEFOG relay.

Transfer System - Inspection. JF2A TRANSFER / 4WD / AWD. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

After the lock to free switch is complete, check the center differential lock detection switch and limit switch.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 (CDL) - 7 (GND1)	After lock to free switch is complete	100 kΩ or higher
4 (TL1) - 7 (GND1)	After lock to free switch is complete	100 kΩ or higher
5 (TL3) - 7 (GND1)	After lock to free switch is complete	Below 1 Ω
6 (TL2) - 7 (GND1)	After lock to free switch is complete	100 kΩ or higher

If there is a malfunction, replace the transfer shift actuator assembly.

8. INSPECT DIFFERENTIAL LOCK SHIFT ACTUATOR (w/ Rear Differential Lock)

HINT:

After inspecting the transfer position switch, transfer shift actuator and differential lock switch, check the differential lock shift actuator.

Check the harness and connector (ECU - differential lock shift actuator).

Disconnect the f1 actuator connector.

Disconnect the A27 and A28 ECU connectors.

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

Transfer System - Inspection. JF2A TRANSFER / 4WD / AWD. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Standard Resistance:

Tester Connection	Condition	Specified Condition
A27-9 (RLY1) - f1-6 (RLY1)	Always	Below 1 Ω
A27-9 (RLY1) - Body ground	Always	100 kΩ or higher
A27-10 (RLY2) - f1-5 (RLY2)	Always	Below 1 Ω
A27-10 (RLY2) - Body ground	Always	100 kΩ or higher
A28-1 (M1) - f1-3 (M1)	Always	Below 1 Ω
A28-1 (M1) - Body ground	Always	100 kΩ or higher
A28-5 (M2) - f1-2 (M2)	Always	Below 1 Ω
A28-5 (M2) - Body ground	Always	100 kΩ or higher
f1-4 (GND) - Body ground	Always	Below 1 Ω

If there is a malfunction, repair or replace the harness or connector.

Check the harness and connector (ECU - differential lock position switch).

Disconnect the f2 differential lock position switch connector.

Disconnect the A27 ECU connector.

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

Transfer System - Inspection. JF2A TRANSFER / 4WD / AWD. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Standard Resistance:
Tester Connection Condition Specified Condition
A27-15 (RLP) - f2-2 (+B) Always Below 1 Ω
A27-15 (RLP) - Body ground Always 100 kΩ or higher
f2-1 (GND) - Body ground Always Below 1 Ω

If there is a malfunction, repair or replace the harness or connector.

Check the differential lock shift actuator.

Turn the engine switch on (IG).

Check that there is an operating noise from the differential lock shift actuator when the differential lock switch is switch from OFF to RR (free to lock), or RR to OFF (lock to free).

NOTICE:

Perform this operation when the transfer is in low and the center differential is locked.

When locking the rear differential, make sure that the vehicle speed is less than 8 km/h (5 mph).

HINT:

Perform this operation when the transfer is in low and the center differential is locked.

OK:
There is an operating noise.

HINT:

If the actuator fork cannot move from free to lock or lock to free even though there is an operating noise, there may be a mechanical malfunction in the rear differential.

If there is no operating noise, there may be a malfunction in the differential lock shift actuator. However, it may also be a result of a mechanical malfunction in the rear differential, so inspect each part.

Remove the differential lock shift actuator assembly ().

Check the free to lock switch.

Connect lines via a relay as shown in the illustration, and check that the actuator fork moves from the free to lock position.

NOTICE:

Make sure to 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.

HINT:

When performing the operation described above, use the DEFOG relay.

Transfer System - Inspection. JF2A TRANSFER / 4WD / AWD. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

After the free to lock switch is complete, check the limit switch.

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

Standard Resistance:
Tester Connection Condition Specified Condition
5 (RLY2) - 4 (GND) After free to lock switch is complete Below 12.5 Ω
6 (RLY1) - 4 (GND) After free to lock switch is complete 500 kΩ or higher

If there is a malfunction, replace the differential lock shift actuator assembly.

Check the lock to free switch.

Connect lines via a relay as shown in the illustration, and check that the actuator fork moves from the lock to free position.

NOTICE:

Make sure to 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.

HINT:

When performing the operation described above, use the DEFOG relay.

Transfer System - Inspection. JF2A TRANSFER / 4WD / AWD. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

After the lock to free switch is complete, check the limit switch.

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

Standard Resistance:
Tester Connection Condition Specified Condition
5 (RLY2) - 4 (GND) After lock to free switch is complete 500 kΩ or higher
6 (RLY1) - 4 (GND) After lock to free switch is complete Below 12.5 Ω

If there is a malfunction, replace the differential lock shift actuator assembly.

Inspect the rear differential lock position switch.

Remove the rear differential lock position switch ().

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

Transfer System - Inspection. JF2A TRANSFER / 4WD / AWD. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Standard Resistance:
Tester Connection Switch Condition Specified Condition
2 (+B) - 1 (GND) Pushed Below 1 Ω
Not pushed 100 kΩ or higher

If there is a malfunction, replace the rear differential lock position switch.

9. INSPECT 4 WHEEL DRIVE CONTROL ECU

Check the four wheel drive control ECU.

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

Transfer System - Inspection. JF2A TRANSFER / 4WD / AWD. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Tester Connection	Terminal Description	Condition	Specified Condition
A27-1 (HL1) - A28-4 (GND)	High-low transfer shift actuator limit switch	Engine switch on (IG) Transfer in high position	Below 1.5 V
		Engine switch on (IG) Transfer in low position	11 to 14 V
		Engine switch on (IG) Transfer in neutral position	11 to 14 V
A27-2 (HL2) - A28-4 (GND)	High-low transfer shift actuator limit switch	Engine switch on (IG) Transfer in high position	11 to 14 V
		Engine switch on (IG) Transfer in low position	Below 1.5 V
		Engine switch on (IG) Transfer in neutral position	11 to 14 V
A27-3 (HL3) - A28-4 (GND)	High-low transfer shift actuator limit switch	Engine switch on (IG) Transfer in high position	11 to 14 V
		Engine switch on (IG) Transfer in low position	11 to 14 V
		Engine switch on (IG) Transfer in neutral position	Below 1.5 V
A27-5 (TT) - A27-25 (TGND)*1	Temperature sensor	Engine switch on (IG)	0 to 5 V
A27-6 (TL1) - A28-4 (GND)	Center differential lock actuator limit switch	Engine switch on (IG) Center differential in free position	11 to 14 V
		Engine switch on (IG) Center differential in lock position	11 to 14 V
		Engine switch on (IG) Transfer in neutral position	Below 1.5 V
A27-7 (TL2) - A28-4 (GND)	Center differential lock actuator limit switch	Engine switch on (IG) Center differential in free position	11 to 14 V
		Engine switch on (IG) Center differential in lock position	Below 1.5 V
		Engine switch on (IG) Transfer in neutral position	11 to 14 V
A27-8 (TL3) - A28-4 (GND)	Center differential lock actuator limit switch	Engine switch on (IG) Center differential in free position	Below 1.5 V
		Engine switch on (IG) Center differential in lock position	11 to 14 V
		Engine switch on (IG) Transfer in neutral position	11 to 14 V
A27-9 (RLY1) - A28-4 (GND)*2	Differential lock shift actuator limit switch	Engine switch on (IG) Rear differential in free position	Below 0.5 V
A27-9 (RLY1) - A28-4 (GND)*2	Differential lock shift actuator limit switch	Engine switch on (IG) Rear differential in lock position	11 to 14 V
A27-10 (RLY2) - A28-4 (GND)*2	Differential lock shift actuator limit switch	Engine switch on (IG) Rear differential in free position	11 to 14 V
A27-10 (RLY2) - A28-4 (GND)*2	Differential lock shift actuator limit switch	Engine switch on (IG) Rear differential in lock position	Below 0.5 V
A27-11 (R) - A28-4 (GND)*2	Differential lock switch	Engine switch on (IG) Differential lock switch in OFF position	11 to 14 V
A27-11 (R) - A28-4 (GND)*2	Differential lock switch	Engine switch on (IG) Differential lock switch in RR position	Below 1.5 V
A27-12 (DL) - A28-4 (GND)	Transfer position switch	Engine switch on (IG) Transfer in high position	11 to 14 V
A27-12 (DL) - A28-4 (GND)	Transfer position switch	Engine switch on (IG) Transfer in low position	Below 1.5 V
A27-13 (LO) - A28-4 (GND)	Center differential lock switch	Engine switch on (IG) Center differential lock switch pressed and held	Below 1.5 V
A27-13 (LO) - A28-4 (GND)	Center differential lock switch	Engine switch on (IG) Center differential lock switch not pressed	11 to 14 V
A27-14 (P1) - A28-4 (GND)	Center differential lock detection switch	Engine switch on (IG) Center differential in free position	11 to 14 V
A27-14 (P1) - A28-4 (GND)	Center differential lock detection switch	Engine switch on (IG) Center differential in lock position	Below 1.5 V
A27-15 (RLP) - A28-4 (GND)*2	Rear differential lock position switch	Engine switch on (IG) Rear differential in free position	11 to 14 V
A27-15 (RLP) - A28-4 (GND)*2	Rear differential lock position switch	Engine switch on (IG) Rear differential in lock position	Below 1.5 V
A27-16 (NP) - A28-4 (GND)	Transfer shift actuator neutral position detection switch	Engine switch on (IG) Transfer in neutral position	Below 1.5 V
A27-16 (NP) - A28-4 (GND)	Transfer shift actuator neutral position detection switch	Engine switch on (IG) Transfer in high or low position	11 to 14 V
A27-17 (MTN) - A28-4 (GND)*3	Clutch start switch	Engine switch on (IG) Clutch pedal released	11 to 14 V
A27-17 (MTN) - A28-4 (GND)*3	Clutch start switch	Engine switch on (IG) Clutch pedal depressed	Below 2 V
A27-19 (CAN+) - A27-20 (CAN-)	CAN communication line	Engine switch off	54 to 69 Ω
A27-21 (L4) - A28-4 (GND)	Transfer shift actuator Low detection switch	Transfer position switch in H4 position	11 to 14 V
A27-21 (L4) - A28-4 (GND)	Transfer shift actuator Low detection switch	Engine switch on (IG) Transfer position switch in L4 position	Below 1.5 V
A28-1 (M1) - A28-4 (GND)*2	Differential lock shift actuator motor	Engine switch on (IG) Transfer in low position Center differential in lock position Differential lock switch OFF → RR (During operation of differential lock shift actuator motor from free to lock)	11 to 14 V
A28-1 (M1) - A28-4 (GND)*2	Differential lock shift actuator motor	Engine switch on (IG) Transfer in low position Center differential in lock position Differential lock switch RR → OFF or transfer position switch L4 → H4 (During operation of differential lock shift actuator motor from lock to free)	Below 1.5 V
A28-2 (HM1) - A28-4 (GND)	High-low transfer shift actuator motor	Engine switch on (IG) Transfer position switch H4 → L4 (During operation of high-low transfer shift actuator motor from high to low)	Below 1.5 V or alternating between below 1.5 V and 11 to 14 V
A28-2 (HM1) - A28-4 (GND)	High-low transfer shift actuator motor	Engine switch on (IG) Transfer position switch L4 → H4 (During operation of high-low transfer shift actuator motor from low to high)	11 to 14 V
A28-3 (IG) - A28-4 (GND)	IG power	Engine switch on (IG)	11 to 14 V
A28-4 (GND) - Body ground	Ground	Always	Below 1 Ω
A28-5 (M2) - A28-4 (GND)*2	Differential lock shift actuator motor	Engine switch on (IG) Transfer in low position Center differential in lock position Differential lock switch OFF → RR (During operation of differential lock shift actuator motor from free to lock)	Below 1.5 V
A28-5 (M2) - A28-4 (GND)*2	Differential lock shift actuator motor	Engine switch on (IG) Transfer in low position Center differential in lock position Differential lock switch RR → OFF or transfer position switch L4 → H4 (During operation of differential lock shift actuator motor from lock to free)	11 to 14 V
A28-6 (HM2) - A28-4 (GND)	High-low transfer shift actuator motor	Engine switch on (IG) Transfer position switch H4 → L4 (During operation of high-low transfer shift actuator motor from high to low)	11 to 14 V
A28-6 (HM2) - A28-4 (GND)	High-low transfer shift actuator motor	Engine switch on (IG) Transfer position switch L4 → H4 (During operation of high-low transfer shift actuator motor from low to high)	Below 1.5 V or alternating between below 1.5 V and 11 to 14 V
A28-7 (TM2) - A28-4 (GND)	Center differential lock actuator motor	Engine switch on (IG) Center differential position free → lock	Below 1.5 V or alternating between below 1.5 V and 11 to 14 V
A28-7 (TM2) - A28-4 (GND)	Center differential lock actuator motor	Engine switch on (IG) Center differential position lock → free	11 to 14 V
A28-8 (TM1) - A28-4 (GND)	Center differential lock actuator motor	Engine switch on (IG) Center differential position free → lock	11 to 14 V
A28-8 (TM1) - A28-4 (GND)	Center differential lock actuator motor	Engine switch on (IG) Center differential position lock → free	Below 1.5 V or alternating between below 1.5 V and 11 to 14 V

If there is a malfunction, inspect the harnesses, connectors, transfer position switch, center differential lock switch, and transfer shift actuator assembly. If these are normal, replace the four wheel drive control ECU ().

HINT:

*1: w/ Temperature Sensor

*2: w/ Rear Differential Lock

*3: for Manual Transmission

JF2A TRANSFER / 4WD / AWD

Land Cruiser URJ200 URJ202 GRJ200 VDJ200

TRANSFER SYSTEM

Switch Condition	Specified Condition
Turned from H4 to L4	4LO indicator light comes on immediately or comes on after blinking

Switch Condition	Specified Condition
Pushed	Center differential lock indicator light comes on immediately or comes on after blinking