Toyota Sienna Service Manual: Precaution
- Basic repair hint
- For vehicles equipped with srs airbag and seat belt pretensioner
- Electronic control
- Removal and installation of fuel control parts
- Removal and installation of engine intake parts
- Handling of hose clamps
- For vehicles equipped with mobile communication systems
- When servicing full-time 4wd vehicles
- For vehicles equipped with traction control (trac) system
- For vehicles equipped with vehicle stability control (vsc) system
- When towing full-time 4wd vehicles
- For vehicles equipped with catalytic converter
- Precaution for cooling fan system
Basic repair hint
(a) HINTS ON OPERATIONS
BASIC REPAIR HINT
1
Attire
• Always wear a clean uniform.
• Hat and safety shoes must be worn.
2
Vehicle protection
Prepare a grill ...
Other materials:
Mute Signal Circuit between Radio Receiver and Stereo Component
Amplifier
DESCRIPTION
This circuit sends a signal to the stereo component amplifier to mute noise.
Because of that, the noise
produced by changing the sound source ceases.
If there is an open in the circuit, noise can be heard from the speakers when
changing the sound source.
If there is a short i ...
Wiper switch
COMPONENTS
REMOVAL
1. REMOVE STEERING COLUMN COVER
2. REMOVE WINDSHIELD WIPER SWITCH ASSEMBLY
Disconnect the connector.
Using a screwdriver, disengage the claw and pull
out the windshield wiper switch assembly.
NOTICE:
The claw will be broken if pressed hard.
HINT ...
Intake Air Temperature Circuit
DESCRIPTION
The Intake Air Temperature (IAT) sensor, mounted on the Mass Air Flow (MAF)
meter, monitors the IAT.
The IAT sensor has a built-in thermistor with a resistance that varies according
to the temperature of the
intake air. When the IAT is low, the resistance of the thermistor i ...
