Vehicle Stability Control System (for Hydraulic Brake Booster)

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM (for Hydraulic Brake Booster): CALIBRATION

1. DESCRIPTION

(a) After replacing the VSC relevant components or performing "Front wheel alignment adjustment", clearing and reading the sensor calibration data are necessary.

(b) Follow the chart to perform calibration.





2. CLEAR ZERO POINT CALIBRATION (for Using Techstream)

HINT
After replacing the yaw rate and deceleration sensor, be sure to clear the zero point calibration data in the skid control ECU and perform zero point calibration.

(a) Connect Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Operate Techstream to erase the DTCs.

(d) Perform zero point calibration of the yaw rate and deceleration sensor using Techstream.

3. PERFORM ZERO POINT CALIBRATION OF YAW RATE SENSOR AND DECELERATION SENSOR (for Using Techstream)

HINT
After replacing the yaw rate and deceleration sensor, be sure to clear the zero point calibration data in the skid control ECU and perform zero point calibration.

NOTICE:
* While obtaining the zero point, do not vibrate the vehicle by tilting, moving or shaking it and keep it stationary. (Do not start the engine.)
* Be sure to do this on a level surface (with an inclination of less than 1°).
(a) Procedures for test mode.

(1) Turn the ignition switch to off.

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

(3) Automatic transmission: Check that the shift lever in P and apply the parking brake.

Manual transmission: Check that the shift lever is in neutral and apply the parking brake.

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

(4) Connect Techstream to the DLC3.

(5) Turn the ignition switch to ON.

(6) Switch the ECU to test mode using Techstream. Enter the following menus: Chassis / ABS/VSC/TRAC / Utility / Signal Check.

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

(8) Check that the SLIP indicator light blinks as shown in the illustration.





NOTICE:
The SLIP indicator light stay ON when obtaining the zero point.

HINT
* If the SLIP indicator light does not blink, perform the 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 once.
(9) Turn the ignition switch to off.

4. CLEAR ZERO POINT CALIBRATION (for Using SST Check Wire)

HINT
After replacing the yaw rate and deceleration sensor, be sure to clear the zero point calibration data in the skid control ECU and perform zero point calibration.

(a) Turn the ignition switch to ON.

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

SST : 09843-18040





(c) Check that the SLIP indicator light blinks in a normal system indication pattern.





(d) Remove the SST from the terminals of the DLC3.

(e) Perform zero point calibration of the yaw rate and deceleration sensor using a check wire.

5. PERFORM ZERO POINT CALIBRATION OF YAW RATE SENSOR AND DECELERATION SENSOR (for Using a SST Check Wire)

HINT
After replacing the skid control ECU and/or yaw rate and deceleration sensor, be sure to perform yaw rate sensor and deceleration sensor zero point calibration.

NOTICE:
* While obtaining the zero point, do not vibrate the vehicle by tilting, moving or shaking it and keep it stationary. (Do not start the engine.)
* Be sure to do this on a level surface (with an inclination less than 1°).
(a) Procedures for test mode:

(1) Turn the ignition switch to off.

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

(3) Automatic transmission: Check that the shift lever in P and apply the parking brake.

Manual transmission: Check that the shift lever is in neutral and apply the parking brake.

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

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

SST : 09843-18040





(5) Turn the ignition switch to ON.

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

(7) Check that the SLIP indicator light blinks as shown in the illustration.

HINT
* If the SLIP indicator light does not blink, perform the 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 once.