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).