The following may indicate that your vehicle is overheating.
● The needle of the engine coolant temperature gauge (→P. 155) enters the red zone or a loss of engine power is experienced.
(For example, the vehicle speed does not increase.) ● Steam comes out from under the hood.
Correction procedures
Stop the vehicle in a safe place
and turn off the air conditioning system, and then stop the engine.
If you see steam: Carefully lift
the hood after the steam subsides completely.
If you do not see steam: Carefully lift the hood.

After the engine has cooled down sufficiently, inspect the hoses and radiator core (radiator) for any leaks.
1.
Radiator
2.
Cooling fan
If a large amount of coolant leaks, immediately contact your Toyota dealer.

The coolant level is satisfactory if the reservoir level is between the “FULL” and “LOW” lines on the reservoir.
1. Reservoir
2. “FULL”
3. “LOW”
4. Radiator cap

Add coolant if necessary.
Water can be used in an emergency if coolant is unavailable.
Start the engine and check that
the radiator cooling fan operates and check for coolant leaks from the radiator
or hoses.
If the fan is not operating: Stop
the engine immediately and contact your Toyota dealer.
If the fan is operating: Have the vehicle inspected at the nearest Toyota dealer.
CAUTION
■To prevent an accident or injury when inspecting under the hood of your vehicle
●If steam is seen coming from under the hood, do not open the hood until the steam has subsided. The engine compartment may be very hot, causing serious injuries such as burns.
●Keep hands and clothing (especially a tie, a scarf or a muffler) away from the fan and belts. Failure to do so may cause the hands or clothing to be caught, resulting in serious injury.
●Do not loosen the radiator cap and the coolant reservoir cap while the engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam released under pressure.
NOTICE
■When adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too quickly can cause damage to the engine.
■To prevent damage to the cooling system
Observe the following precautions: ●Avoid contaminating the coolant with foreign matter (such as sand or dust etc.).
●Do not use any coolant additives.
If the vehicle battery is discharged
If the vehicle becomes stuckData List / Active Test
DATA LIST / ACTIVE TEST
HINT:
By accessing the Data List displayed by the Techstream, you can check values
of switches and sensors without removing any parts. Reading the Data List as the
first step of troubleshooting is one method to shorten diagnostic time.
1. DATA LIST FOR OCCUPANT DETECTI ...
Disassembly
DISASSEMBLY
PROCEDURE
1. FIX VANE PUMP
(a) Using SST, fix the vane pump assembly in a vise.
SST: 09630-00014
09631-00132
NOTICE:
When using a vise, do not overtighten it.
2. REMOVE VANE PUMP OIL RESERVOIR SUB-ASSEMBLY
(a) Remove the 3 bolts and vane pump oil reservoir.
(b) Remove the O-r ...
Transfer System
Precaution
PRECAUTION
Before disassembly, clean the transfer assembly and remove any deposited
sand and mud to prevent it from entering the transfer during disassembly
and assembly.
When removing any light alloy parts such as the transfer covers, do
not pry them off with a ...