Toyota Sienna Service Manual: Precaution for cooling fan system

Toyota Sienna Service Manual / Introduction / Repair instruction / Precaution / Precaution for cooling fan system

NOTICE: • When the ignition switch is turned off and the engine temperature is high, the cooling fans may operate for approximately 3 minutes. • After turning the ignition switch off, keep hands and objects away from the fans when they are operating.

HINT:

If all of the following are met for a certain period of time during a few minute period immediately before the engine is stopped, the electric fans will continue to operate for 3 minutes after the engine is stopped. This is performed to ensure restartability and stabilize idle speed.

The intelligent tester indicates a very high coolant temperature.
The intelligent tester indicates a high outside air temperature.
The vehicle has been driven under high load (driving on an uphill or equivalent).

The following sensors are used for this control:

Coolant temperature sensor
Outside air temperature sensor
MAF sensor
Vehicle speed sensors

For vehicles equipped with catalytic converter

CAUTION: If a large amount of unburned gasoline or gasoline vapors flow into the converter, it may cause overheating and create a fire hazard. To prevent this, observe the following precautio ...

Vehicle lift and support locations

1. NOTICE ABOUT VEHICLE CONDITION WHEN JACKING UP VEHICLE (a) The vehicle must be unloaded before jacking up/ lifting up the vehicle. Never jack up/lift up a heavily loaded vehicle. (b) When re ...

Other materials:

Problem symptoms table
SLIDING ROOF SYSTEM Symptom Suspected area AUTO function does not operate Sliding roof motor assembly Sliding roof system does not operate ECU-IG fuse S/ Roof fuse IG1 relay Sliding roof housing assembly Sliding roof motor switc ...

Starting the engine
Shift the shift lever to P and apply the brakes. Touch the Toyota emblem side of the electronic key to the engine switch. An alarm will sound to indicate that the start function cannot detect the electronic key that is touched to the engine switch if any of the doors is opened ...

Network gateway ECU
COMPONENTS REMOVAL 1. REMOVE FRONT DOOR SCUFF PLATE LH 2. REMOVE COWL SIDE TRIM BOARD LH 3. REMOVE INSTRUMENT PANEL FINISH PANEL LOWER LH (See page IP-6) 4. REMOVE INSTRUMENT PANEL SAFETY PAD INSERT NO. 1 (See page IP-6) 5. REMOVE CLEARANCE WARNING ECU ASSEMBLY (See page PM-15) 6. REMOVE ...