Toyota Sienna Service Manual: Yaw rate sensor check (when using intelligent tester)
(a) Check the output of the yaw rate sensor.
(1) Move the shift lever to the D position, drive the vehicle at a speed of approximately 5 km/h (3 mph), and turn the steering wheel either to the left or right 90° or more until the vehicle makes a 180° turn.
(2) Stop the vehicle and move the shift lever to the P position. Check that the skid control buzzer sounds for 3 seconds.
HINT:
- If the skid control buzzer sounds, the signal check is completed normally.
- If the skid control buzzer does not sound, check the skid control buzzer circuit, then perform the signal check again.
- If the skid control buzzer does not sound yet, there is a malfunction in the VSC sensor, so check the DTC.
- Make 180° turn. At the end of the turn, the direction of the vehicle should be within 180° +- 5° of its start position.
- Do not spin the wheels.
6. DTC OF TEST MODE (SIGNAL CHECK) FUNCTION
ABS sensor: 
VSC sensor:
HINT: The codes in this table are output only in Test Mode (signal check).
Speed sensor check (when using intelligent tester)
(a) Check the backward signal.
(1) Drive the vehicle in reverse for more than 1
second at 3 km/h (2 mph) or higher.
HINT:
Drive the vehicle in reverse and check the speed
sensor signal. Note th ...
Sensor signal check by test mode (signal check) (when using sst check wire)
(a) When having replaced the skid control ECU and/or
yaw rate and deceleration sensor, perform zero
point calibration of the yaw rate and deceleration
sensor.
HINT:
If the ignition switch is t ...
Other materials:
Differential system
PRECAUTION
NOTICE:
When disconnecting the negative (-) battery terminal,
initialize the following systems after the terminal is
reconnected.
1. Before disassembly, clean the outside of the rear
differential assembly and remove any sand or mud to
prevent it from entering the inside of the as ...
Air outlets
Location of air outlets
The air outlets and air volume
changes according to the
selected air flow mode.
Adjusting the position of and opening and closing the air outlets
Center outlets
Right and left side outlets
Turn the knob to open or close the vent.
Direct air f ...
Trailer towing tips
Your vehicle will handle differently when towing a trailer. Help to avoid
an accident, death or serious injury, keep the following in mind when
towing:
Speed limits for towing a trailer vary by state or province. Do
not
exceed the posted towing speed limit.
Toyota recommends that the ve ...
