Antilock Brakes / Traction Control Systems: Adjustments
CALIBRATION1. 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. When not using hand-held tester:
CLEAR ZERO POINT CALIBRATION
HINT: After replacing the yaw rate and deceleration sensor, make sure to clear zero point calibration data in the skid control ECU and perform zero point calibration.
a. Clear the zero point calibration using the SST check wire.
SST 09843-18040
1. Turn the ignition switch ON.
2. Using SST, connect and disconnect terminals 12 (TS) and 4 (CG) of the DLC3 4 times or more within 8 seconds.
3. Check the warning lamp indicates the normal code.
4. Remove the SST.
3. When not using hand-held tester:
PERFORM ZERO POINT CALIBRATION OF YAW RATE SENSOR AND DECELERATION SENSOR
HINT: After replacing the brake master cylinder, make sure to perform yaw rate sensor and deceleration sensor zero point calibration.
NOTE:
- While obtaining the zero point, do not give any vibrate the vehicle by tilting, moving or shaking it and keep it in a stationary condition. Do not start the engine.
- Be sure to perform the calibration on a level surface (with an inclination less than 1 degree.
a. Shift the shift lever is in P.
b. Clear the zero point calibration.
c. Procedures for test mode:
1. Turn the ignition switch OFF.
2. Apply the parking brake (Parking brake switch ON).
3. Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.
SST 09843-18040
4. Check that the steering wheel is in the straight- ahead position and move the shift lever is in P.
5. Turn the ignition switch ON.
d. Keep the vehicle in the stationary condition on a level surface for 2 seconds or more.
e. Check the VSC warning lamp blinks.
HINT:
- If the VSC warning lamp does not blink, perform the zero point calibration again.
- The zero point calibration is performed only once after the system enters the test mode.
- Calibration cannot be performed again until the stored data is cleared once.
4. When using hand-held tester:
CLEAR ZERO POINT CALIBRATION
a. Clear the zero point calibration.
1. Connect the hand-held tester to the DLC3.
2. Turn the ignition switch ON.
3. Operate the hand-held tester to clear the zero point calibration.
HINT: Refer to the hand-held tester operator's manual for further details.
5. When using hand-held tester:
PERFORM ZERO POINT CALIBRATION OF YAW RATE SENSOR AND DECELERATION SENSOR
NOTE:
- While obtaining the zero point, do not vibrate the vehicle by tilting, moving or shaking it and keep it in a stationary condition. Do not start the engine.
- Be sure to perform the calibration on a level surface (with an inclination less than 1 degree.
a. Check that the steering wheel is in the straight-ahead position and move the shift lever to P.
b. Connect the hand-held tester to the DLC3.
c. Turn the ignition switch ON.
d. Operate the hand-held tester to test mode.
e. Obtain the zero point of the yaw rate sensor and deceleration sensor:
1. Keep the vehicle in the stationary condition on a level surface for 2 seconds or more.
2. Check that the VSC warning lamp blinks.
HINT:
- If the VSC warning lamp does not blink, perform the zero point calibration again.
- The zero point calibration is performed only once after the system enters the test mode.
- Calibration cannot be performed again until the stored data is cleared once.
f. Turn the ignition switch OFF.