Initialization
INITIALIZATION1. DESCRIPTION
a. Perform initialization of linear solenoid valve and calibration when the skid control ECU, brake actuator or brake pedal stroke sensor is replaced.
Follow the chart to perform initialization.
HINT:
^ If there is a problem with auxiliary battery (12 V) voltage, initialization of linear solenoid valve and calibration cannot be completed normally. Make sure to check battery voltage before performing initialization of linear solenoid valve and calibration.
^ If the actuator's temperature is high, initialization of linear solenoid valve and calibration may not be completed normally. In that case, wait until the temperature decreases and then perform initialization of linear solenoid valve and calibration.
^ If the ignition switch is turned off, the brake pedal is operated or vehicle speed is input while the linear solenoid valve offset learning is being performed, the learning will be cancelled.
2. CLEAR STORED VALUE OF INITIALIZATION OF LINEAR SOLENOID VALVE AND CALIBRATION (WHEN USING INTELLIGENT TESTER)
a. Connect the intelligent tester to the DLC3.
b. Move the shift lever to the P position.
c. Turn the ignition switch on with the brake pedal released.
d. Clear the stored value of initialization of linear solenoid valve and calibration following the screen.
HINT: Refer to the intelligent tester operator's manual for further details.
e. Using the intelligent tester, perform initialization of linear solenoid valve and calibration.
3. PERFORM INITIALIZATION OF LINEAR SOLENOID VALVE AND CALIBRATION (WHEN USING INTELLIGENT TESTER)
a. Connect the intelligent tester to the DLC3.
b. Move the shift lever to the P position.
c. Turn the ignition switch on with the brake pedal released.
NOTICE:
^ If the linear solenoid valve offset learning is performed without turning the ignition switch on, the learning process may not be completed properly because of insufficient battery voltage.
^ When the linear solenoid valve offset learning is interrupted, or the learning process is performed with the shift lever not in the P position, DTC C1345/66 will be stored.
d. Set the intelligent tester to test mode (select TEST MODE).
HINT: Refer to the intelligent tester operator's manual for further details.
e. Leave the vehicle stationary without depressing the brake pedal for 1 or 2 minutes.
f. Check that the interval between blinks of the brake control warning light changes from 1 second to 0.25 seconds.
HINT:
^ The time needed to complete initialization of linear solenoid valve and calibration varies depending on battery voltage.
^ The brake control warning light blinks at 1 second intervals during the initialization of linear solenoid valve and calibration and changes to the test mode display.
^ The brake control warning light blinks at 0.25 seconds intervals if the test mode is normal.
g. Check that DTC C1345/66 that indicates trouble with stroke sensor zero point learning is not output when the brake control warning light changes to the test mode display upon initialization of linear solenoid valve and calibration completion.
h. Enter the normal mode from the test mode following the intelligent tester screen.
HINT: Refer to the intelligent tester operator's manual for further details.
4. CLEAR STORED VALUE OF INITIALIZATION OF LINEAR SOLENOID VALVE AND CALIBRATION (WHEN USING SST CHECK WIRE)
a. Move the shift lever to the P position.
b. Turn the ignition switch on with the brake pedal released.
c. Using SST, connect and disconnect terminals TS and CG of the DLC3 4 times or more within 8 seconds.
SST 09843-18040
d. Check that no codes other than ABS code 42, VSC code 45 and ECB code 48, 66, or 95 are stored in the diagnostic system.
HINT: The ABS warning light and multi information display do not indicate the normal system code.
e. Remove the SST from the terminals of the DLC3.
f. Using the check wire, perform initialization of linear solenoid valve and calibration.
5. PERFORM INITIALIZATION OF LINEAR SOLENOID VALVE AND CALIBRATION (WHEN USING SST CHECK WIRE)
a. Using SST, connect terminals TS and CG of the DLC3.
SST 09843-18040
b. Move the shift lever to the P position.
c. Turn the ignition switch on with the brake pedal released.
NOTICE:
^ If the linear solenoid valve offset learning is performed without turning the ignition switch on, the learning process may not be completed properly because of insufficient battery voltage.
^ When the linear solenoid valve offset learning is interrupted, or the learning process is performed with the shift lever not in the P position, DTC C1345/66 will be stored.
d. Leave the vehicle stationary without depressing the brake pedal for 1 or 2 minutes.
e. Check that the interval between blinks of the brake control warning light changes from 1 second to 0.25 seconds.
HINT:
^ The time needed to complete initialization of linear solenoid valve and calibration varies depending on battery voltage.
^ The brake control warning light blinks at 1 second intervals during the initialization of linear solenoid valve and calibration and changes to the test mode display.
^ The brake control warning light blinks at 0.25 seconds intervals if the test mode is normal.
f. Check that DTC C1345/66 that indicates trouble with stroke sensor zero point learning is not output when the brake control warning light changes to the test mode display upon initialization of linear solenoid valve and calibration completion.
g. Turn the ignition switch off and disconnect the SST from the DLC3.
CALIBRATION
1. DESCRIPTION
After replacing the VSC relevant components or performing Front wheel alignment adjustment, clear and read the sensor calibration data.
Follow the chart to perform calibration.
2. CLEAR ZERO POINT CALIBRATION (WHEN USING INTELLIGENT TESTER)
a. Connect the intelligent tester to the DLC3.
b. Turn the ignition switch on.
c. Operate the intelligent tester to erase the codes (select RESET MEMORY).
HINT: Refer to the intelligent tester operator's manual for further details.
d. Using the intelligent tester, perform zero point calibration of the yaw rate and deceleration sensor.
3. PERFORM ZERO POINT CALIBRATION OF YAW RATE AND DECELERATION SENSOR (WHEN USING INTELLIGENT TESTER)
NOTICE:
^ 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 turn the ignition switch on.)
^ Be sure to do this on a level surface (with an inclination of less than 1 degree).
a. Procedures for test mode.
(1) Check that the steering wheel is in the straight ahead position and move the shift lever to the P position 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.
(2) Connect the intelligent tester to the DLC3.
(3) Turn the ignition switch on.
(4) Set the intelligent tester to test mode (select TEST MODE).
HINT: Refer to the intelligent tester operator's manual for further details.
b. Obtain the zero point of the yaw rate and deceleration sensor.
(1) Keep the vehicle in the stationary condition on a level surface for 2 seconds or more.
(2) Check that the ABS and brake control warning lights blink and CHECK VSC SYSTEM is displayed on the multi information display (test mode).
HINT:
^ If the ABS and brake control warning lights do not blink and/or CHECK VSC SYSTEM is not displayed on the multi information display, perform 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.
c. Turn the ignition switch off and disconnect the intelligent tester.
4. CLEAR ZERO POINT CALIBRATION (WHEN USING SST CHECK WIRE)
a. Turn the ignition switch 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 no codes other than ABS code 42, VSC code 45 and ECB code 48, 66, or 95 are stored in the diagnostic system.
HINT: The ABS warning light and multi information display do not indicate the normal system code.
d. Remove the SST from the terminals of the DLC3.
e. Using a check wire, perform zero point calibration of the yaw rate and deceleration sensor.
5. PERFORM ZERO POINT CALIBRATION OF YAW RATE AND DECELERATION SENSOR (WHEN USING SST CHECK WIRE)
NOTICE:
^ 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 turn the ignition switch On.)
^ Be sure to do this on a level surface (with an inclination of less than 1 degree).
a. Procedures for test mode.
(1) Turn the ignition switch off.
(2) Using SST, connect terminals TS and CG of the DLC3.
SST 09843-18040
(3) Check that the steering wheel is in the straight ahead position and move the shift lever to the P position.
NOTICE: DTC C1210/36 and C1336/39 will be recorded if the shift lever is not in the P position.
b. Obtain the zero point of the yaw rate and deceleration sensor.
(1) Turn the ignition switch on.
(2) Keep the vehicle in a stationary condition on a level surface for 2 seconds or more.
(3) Check that the ABS and brake control warning lights blink and CHECK VSC SYSTEM is displayed on the multi information display (test mode).
HINT:
^ If the ABS and brake control warning lights do not blink and/or CHECK VSC SYSTEM is not displayed on the multi information display, perform 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.
c. Turn the ignition switch off and disconnect the SST from the DLC3.