Programming and Relearning

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM (for ADVICS Made): CALIBRATION

1. DESCRIPTION

* After replacing the VSC relevant components or performing a front wheel alignment adjustment, clear and read the sensor calibration data.

* Follow the chart to perform calibration.





2. OBTAIN ZERO POINT OF YAW RATE AND ACCELERATION SENSOR (When Using the Techstream)

NOTICE:
* While obtaining the zero point, keep the vehicle stationary and do not vibrate, tilt, move, or shake it. (Do not start the engine.)
* Be sure to perform this procedure on a level surface (with an inclination of less than 1 degree).

(a) Clear the zero point calibration data.

(1) Turn the ignition switch off.

(2) Check that the steering wheel is in the straight-ahead position.

(3) Check that the shift lever is in P.

(4) Connect the Techstream to the DLC3.

(5) Turn the ignition switch on (IG).

(6) Turn the Techstream on.

(7) Operate the Techstream to clear the codes (select "Reset Memory").

HINT
Refer to the Techstream operator's manual for further details.

(8) Turn the ignition switch off.

NOTICE:
If the ignition switch is turned on (IG) for more than 15 seconds with the shift lever in P after zero point of the yaw rate and acceleration sensor has been cleared, only the zero point of the yaw rate sensor will be stored. If the vehicle is driven under these conditions, the skid control ECU will store the zero point calibration for the acceleration sensor as not being completed. The skid control ECU will then also indicate this as a malfunction of the VSC system using the indicator lights (models without multi-information display) or multi-information display (models with multi-information display).

(b) Perform zero point calibration of the yaw rate and acceleration sensor.

(1) Turn the ignition switch off.

(2) Check that the steering wheel is in the straight-ahead position.

(3) Check that the shift lever is in P.

NOTICE:
DTCs C1210/36 and C1336/39 will be recorded if the shift lever is not in P C1210.

(4) Connect the Techstream to the DLC3.

(5) Turn the ignition switch on (IG).

(6) Turn the Techstream on.

(7) Set the Techstream to Test Mode (select "Test Mode").

HINT
Refer to the Techstream operator's manual for further details.

(8) After Test Mode has been entered, keep the vehicle stationary on a level surface for 2 seconds or more.

(9) Check that the ABS warning and SLIP indicator lights come on for several seconds and then blink in Test Mode.

HINT
* The TRAC OFF indicator light remains on during Test Mode because TRAC is prohibited.
* If the ABS warning and SLIP indicator lights do not blink, perform zero point calibration again.
* The zero point calibration is performed only once after the system enters Test Mode.
* Calibration cannot be performed again until the stored data is cleared.

(10) Turn the ignition switch off and disconnect the Techstream.

3. OBTAIN ZERO POINT OF YAW RATE AND ACCELERATION SENSOR (When not Using the Techstream)

NOTICE:
* While obtaining the zero point, keep the vehicle stationary and do not vibrate, tilt, move, or shake it. (Do not start the engine.)
* Be sure to perform the procedure on a level surface (with an inclination of less than 1 degree).

(a) Clear the zero point calibration data.





(1) Turn the ignition switch off.

(2) Check that the steering wheel is in the straight-ahead position.

(3) Check that the shift lever is in P.

(4) Turn the ignition switch on (IG).

(5) The warning light and indicator light come on for 3 seconds to indicate that the initial check is completed.

(6) Using SST, connect and disconnect terminals TS and CG of the DLC3, 4 times or more within 8 seconds.

SST : 09843-18040

(7) Check the ABS warning and SLIP indicator lights come on.

NOTICE:
If the ignition switch is turned on (IG) for more than 15 seconds with the shift lever in P after zero point of the yaw rate and acceleration sensor has been cleared, only the zero point of the yaw rate sensor will be stored. If the vehicle is driven under these conditions, the skid control ECU will store the zero point calibration for the acceleration sensor as not being completed. The skid control ECU will then also indicate this as a malfunction of the VSC system using the indicator lights (models without multi-information display) or multi-information display (models with multi-information display).

(b) Perform zero point calibration of the yaw rate and acceleration sensor.

(1) Turn the ignition switch off.

(2) Check that the steering wheel is in the straight-ahead position.

(3) Check that the shift lever is in P.

NOTICE:
DTCs C1210/36 and C1336/39 will be recorded if the shift lever is not in P C1210.

(4) Using SST, connect terminals TS and CG of the DLC3.





SST : 09843-18040

(5) Turn the ignition switch on (IG).

(6) Keep the vehicle stationary on a level surface for 2 seconds or more.

(7) Check that the ABS warning and SLIP indicator lights come on for several seconds and then blink in Test Mode.

HINT
* The TRAC OFF indicator light remains on during Test Mode because TRAC is prohibited.
* If the ABS warning and SLIP indicator lights do not blink, perform zero point calibration again.
* The zero point calibration is performed only once after the system enters Test Mode.
* Calibration cannot be performed again until the stored data is cleared.

(8) Turn the ignition switch off and disconnect SST from the DLC3.