Programming and Relearning
IF NECESSARY, PERFORM ZERO POINT CALIBRATION OF YAW RATE AND DECELERATION SENSORSHINT:
- When having replaced the yaw rate sensor, deceleration sensor or/and the ECU, make sure to perform a yaw rate and deceleration sensors zero point calibration.
- This operation is also required when the deceleration sensor or yaw rate sensor has been replaced since the calibrated zero point of both sensors will be erased.
NOTE:
- During calibration, do not give any vibration to the vehicle by tilting, moving or shaking it. Keep it in the stationary condition (do not start the engine).
- Be sure to perform calibration on a flat surface (within an inclination of 1 %).
a. Clear the zero point of the yaw rate and deceleration sensors.
1. Move the shift lever to the P position.
2. Turn the ignition switch ON in the stationary condition.
3. With the ignition switch ON, using SST, repeat a cycle of short and open between terminals Tc (13) and CG (4) of the DLC3 4 times or more within 8 seconds. Check that the VSC warning light is illuminated, indicating that the recorded zero point is erased.
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4. Turn the ignition switch OFF.
b. Obtain zero point of the yaw rate sensor.
1. Disconnect terminals Tc (13) and CG (4) of the DLC3.
2. Turn the ignition switch ON.
HINT: The vehicle should be in the stationary condition with the shift lever in the P position.
3. Check that the VSC warning light turns off about 15 seconds after the ignition switch is turned ON.
HINT: Even if the ignition switch is not turned OFF in step (a)-(4) and remains ON, the yaw rate sensor zero point calibration can be completed. In this case, the VSC warning light is illuminated about 15 seconds and starts blinking (normal code).
4. After ensuring that the VSC warning light remains OFF for 2 seconds, turn the ignition switch OFF.
HINT: If the ignition switch is not turned OFF in step (a)-(4), ensure that the light is blinking for 2 seconds and the ignition switch is turned OFF.
c. Perform the deceleration sensor zero point calibration.
NOTE: After step (b) (the yaw rate sensor zero point calibration), the VSC warning light turns off. At this time, if the vehicle is driven without performing step (c) (deceleration sensor zero point calibration), deceleration sensor zero point calibration malfunction will be detected and the VSC warning light will light up. Therefore, perform step (c) right after step (b).
1. Using the SST, connect terminals Tc (13) and CG (4)of the DLC3.
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2. Turn the ignition switch ON.
HINT: Keep the vehicle in the stationary condition with the shift lever in the P position.
3. After turning the ignition switch ON, check that the VSC warning light is illuminated for about 4 seconds and then starts quick blinking at 0.13 second intervals.
4. After ensuring that the VSC warning light is blinking for 2 seconds and the ignition switch is turned OFF.
5. Remove the SST and disconnect terminals Tc (13) and CG (4) of the DLC3.
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