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:

Disposal
HINT: Use the same procedures for the RH side and LH side. The procedures listed below are for the LH side. When scrapping a vehicle equipped with the SRS or disposing of the curtain shield airbag assembly, be sure to deploy the airbag first in accordance with the proce ...

Disassembly
1. REMOVE CENTER CLUSTER MODULE KNOB NO.1 (for Manual Air Conditioning System) (a) Remove the center cluster module knob No. 1. 2. REMOVE CENTER CLUSTER MODULE KNOB NO.2 (for Manual Air Conditioning System) (a) Release the 2 claws fittings and remove the center cluster module knob No ...

Selecting, fast-forwarding and reversing tracks/files/songs
Selecting a track/file/song Press the “” or “” button on “SEEK•TRACK” or turn the “TUNE•SCROLL” knob to select the desired track/file/song number. To fast-forward or reverse, press and hold the “” or “” button on “SEEK•TRACK”. ...