VSC Sensor Check

VSC SENSOR CHECK (TEST MODE)

HINT: If the ignition switch is turned from ON to ACC or LOCK during test mode, DTC will be erased.

(a) In case of not using LEXUS hand-held tester:
Check the VSC sensor signal.
(1) Turn the ignition switch OFF.
(2) Check that the shift lever position is at P range, turn the steering wheel to the neutral position.

(3) Using SST connect terminals Ts and E1 of DLC1. SST 09843-18020

(4) Start the engine and check that the "VSC TEST" displays on the multi-information display.
(5) (After the battery terminal cable is connected, the first time only):
Check the zero point calibration of the yaw rate sensor.
Start the engine and keep the vehicle in the stationary condition on the flat place for 3 sec. or more.

HINT: If the "VSC TEST" does not display on the multi-information display, inspect the VSC warning indicator circuit and Ts terminal circuit.

(6) Check the steering position 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.

(7) Check the yaw rate sensor.
Shift the shift lever to the D range and drive the vehicle at the vehicle speed about 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 range, check that the VSC buzzer sounds for 3 seconds.
- 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:
- The vehicle direction should be within 180° ± 5° at the time of the circular drive start and end positions.
- Do not spin the rear wheels.

(8) Using SST, connect terminals Tc and E1 of DLC1. SST 09843-18020

(9) Read the number of displays on the multi-information display.

HINT: Refer to the table shown below for details of VSC codes.

- If 2 or more malfunction are indicated at the same time, the lowest numbered code will be displayed 1st.
(10) After doing the check, disconnect the SST from terminals Ts and E1, Tc and E1 of DLC1, and turn ignition switch OFF. SST 09843-18020
(b) In case of using LEXUS hand-held tester:
Check the VSC sensor signal.

(1) Hook up the LEXUS hand-held tester to the DLC3.
(2) Do step (2) and (4) - (7), shown above.
(3) 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.