Toyota RAV4 manuals

Toyota Sienna Service Manual: Cooling system

On-vehicle inspection

1. INSPECT FOR COOLANT LEAK

CAUTION: Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.

NOTICE: Before performing each inspection, turn the A/C switch OFF.

INSPECT FOR COOLANT LEAK

(a) Fill the radiator with coolant and attach a radiator cap tester.

(b) Warm up the engine.

(c) Using a radiator cap tester, increase the pressure inside the radiator to 118 kPa (1.2 kgf/cm2, 17 psi), and check that the pressure does not drop.

If the pressure drops, check the hoses, radiator and water pump for leaks. If no external leaks are found, check the heater core, cylinder block and cylinder head.

2. INSPECT ENGINE COOLANT LEVEL IN RESERVOIR

(a) Check that the engine coolant level is between the LOW and FULL lines when the engine is cold.

If the engine coolant level is low, check for leaks and add "TOYOTA Super Long Life Coolant" or similar high quality ethylene glycol based non-silicate, nonamine, non-nitrite and non-borate coolant with longlife hybrid organic acid technology to the FULL line.

NOTICE: Do not substitute plain water for engine coolant.

3. INSPECT ENGINE COOLANT QUALITY

(a) Remove the radiator cap.

CAUTION: Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.

(b) Check if there are any excessive deposits of rust or scales around the radiator cap and radiator filler hole. Also, the coolant should be free of oil.

If excessively dirty, clean the coolant passage and replace the coolant.

(c) Install the radiator cap.

2Gr-fe cooling
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Cooling fan system
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Other materials:

Mute Signal Circuit between Radio and Navigation Assembly and Television Display Assembly
DESCRIPTION The radio and navigation assembly controls the volume according to the MUTE signal from the television display assembly. The MUTE signal is sent to reduce noise and a popping sound generated when switching the mode, etc. If there is an open in the circuit, noise can be heard ...

Driver Side Outer Mirror
DTC B1209 Driver Side Outer Mirror DESCRIPTION This DTC is detected when communication between the outer mirror control ECU LH and multiplex network gateway ECU stops for more than 10 seconds DTC No. DTC Detection Condition Trouble Area B1209 Driver sid ...

Rear Air Outlet Damper Control Servo Motor Circuit
DESCRIPTION This circuit turns the servo motor and changes each damper position by receiving the signals from the A/ C amplifier. The rear air outlet damper servo motor switches the air outlet mode by rotating (normal, reverse) with electrical power from the A/C amplifier. WIRING DIAGRAM ...

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