Toyota Sienna Service Manual: System description
1. SYSTEM DESCRIPTION
(a) ABS
(Anti-lock Brake System) The ABS helps prevent wheels from locking when the brake is applied firmly or when braking on a slippery surface.
(b) EBD
(Electronic Brake force Distribution) The EBD control utilizes ABS, realizing proper brake force distribution between front and rear wheels in accordance with driving conditions. In addition, during cornering braking, it also controls the brake force of the right and left wheels, helping to maintain vehicle behavior.
(c) BA (Brake Assist)
The primary purpose of the brake assist system is to provide an auxiliary brake force to assist the driver who cannot generate a large enough brake force during emergency braking, thus helping to maximize the vehicle's brake performance.
(d) TRAC
(Traction Control) The TRAC system helps prevent the drive wheels from slipping if drive presses down on the accelerator pedal excessively when starting off or accelerating on a slippery surface.
(e) VSC
(Vehicle Stability Control) The VSC system helps prevent the vehicle from slipping sideways as a result of strong front wheel skid or strong rear wheel skid during cornering.
Vehicle stability control system
Parts location
...
How to proceed with troubleshooting
The intelligent tester can be used at step 2, 5, 8, 11.
1 Vehicle Brought to Workshop
2 Check and Clear DTCs and Freeze Frame Data
HINT:
See page BC-82 and BC-84.
3 Problem Symptom Confirmati ...
Other materials:
Subscription
After you have signed the Telematics Subscription Service Agreement
and are enrolled, you can begin receiving services.
A variety of subscription terms is available for purchase. Contact your
Toyota dealer, or push the “SOS” button in your
vehicle for further subscription details.
Safety ...
Mass or Volume Air Flow Circuit/ Mass or Volume Air Flow Circuit Low Input/
Mass or Volume Air Flow Circuit High Input
DESCRIPTION
The Mass Air Flow (MAF) meter is a sensor that measures the amount of air
flowing through the throttle
valve. The ECM uses this information to determine the fuel injection time and to
provide appropriate airfuel
ratio. Inside the MAF meter, there is a heated platinum wire which is ...
Customizing vehicle features
Changing using the audio system screen
Audio system with “CAR” button
Press the “SETUP” button.
Select “Vehicle” on the “Setup” screen.
Audio system with “APPS” button
Press the “APPS” button.
Select “Setup” on the “Apps” screen and select ...
