Replacement
REPLACEMENT
PROCEDURE
1. REMOVE NO. 1 ENGINE UNDER COVER
2. REMOVE NO. 2 ENGINE UNDER COVER
3. DRAIN ENGINE COOLANT
(a) Loosen the radiator drain cock plug and drain the coolant.
NOTICE:
Do not remove the reserve tank cap or radiator drain cock plug while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
HINT:
Collect the coolant in a container and dispose of it according to the regulations in your area.
(b) Remove the radiator cap sub-assembly from the radiator assembly.
*1 |
Radiator Cap Sub-assembly |
*2 |
Radiator Drain Cock Plug |
4. ADD ENGINE COOLANT
(a) Tighten the radiator drain cock plug by hand.
(b) Slowly fill the radiator with TOYOTA Super Long Life Coolant (SLLC).
Standard Capacity:
7.1 liters (7.5 US qts, 6.2 lmp. qts)
HINT:
TOYOTA vehicles are filled with TOYOTA SLLC at the factory. In order to avoid damage to the engine cooling system and other technical problems, only use TOYOTA SLLC or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology is a combination of low phosphates and organic acids).
NOTICE:
Never use water as a substitute for engine coolant.
(c) Slowly pour coolant into the radiator reservoir tank until it reaches the full line. Text in Illustration
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(d) Squeeze the No. 1 and No. 2 radiator hoses several times by hand, and then check the level of the coolant.
If the coolant level is low, add coolant.
(e) Bleed air from the cooling system.
(1) Warm up the engine until the thermostat opens. While the thermostat is open, circulate the coolant for several minutes.
HINT:
The thermostat open timing can be confirmed by squeezing the No. 2 radiator hose by hand, and sensing vibrations when the engine coolant starts to flow inside the hose.
(2) Maintain the engine speed at 2500 to 3000 rpm.
(3) Squeeze the inlet and No. 1 and No. 2 radiator hoses several times by hand to bleed air.
CAUTION:
When squeezing the radiator hoses:
NOTICE:
(f) Stop the engine and wait until the engine coolant cools down.
(g) Add engine coolant to the full line on the radiator reservoir.
5. INSPECT FOR COOLANT LEAK
6. INSTALL NO. 2 ENGINE UNDER COVER
7. INSTALL NO. 1 ENGINE UNDER COVER
Diagnosis Circuit
DESCRIPTION
This circuit is used to read the DTCs that are output from the transponder key
ECU assembly with the Techstream.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
If the transponder key ECU assembly is replaced, register the key and ECU commu ...
Main Body ECU Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Main Body ECU Communication Stop Mode
"Main Body" is not displayed on "CAN Bus Check" screen of the
Techstream.
...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" ...