VSC Sensor Check (Test Mode)

In case of using LEXUS hand-held tester: CHECK VSC SENSOR SIGNAL

NOTE: When having replaced the yaw rate sensor, deceleration sensor and/or ECU, perform zero point calibration of the yaw rate and deceleration sensors (See step 7.). Make sure that this operation should be done before starting the following.

A. Hook up the LEXUS hand-held tester to the DLC3.
1. Check that the shift lever position is at P position, turn the steering wheel to the neutral position.
4. Start the engine.





2. Check that the VSC TRAC warning light blinks.

HINT: If the VSC TRAC warning light does not blink, inspect the VSC TRAC warning light circuit and Ts terminal circuit.

B. Check the steering angle sensor.
Turn the steering wheel either to left or right for 450 ° or more from the vehicle stationary condition, and turn back the steering wheel to the straight ahead position.


C. Check the yaw rate sensor.
Shift the shift lever to the D position and drive the vehicle at the vehicle speed of approx. 5 km/h (3 mph), turn the steering wheel either to left or right for 90 ° or more, and maintain 180 ° circular drive for the vehicle.

Stop the vehicle and shift the shift lever to the P position, check that the VSC buzzer sounds for 3 sec.

If the VSC buzzer sounded, the sensor check is in normal completion.
If the VSC buzzer does not sound, do the sensor check again. If the VSC buzzer still won't sound, there is malfunction in the VSC sensor, so check the DTC.

HINT: Drive the vehicle circularly by 180 °. 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.





D. Read the DTC by following the prompts on the tester screen.

HINT: Please refer to the LEXUS hand-held tester operator's manual for further details.