ESC hydraulic control system 4.3-21 Calibration of steering wheel angle sensor CAUTION • After replacing the steering system components and the multifunctional steering wheel, it is necessary to first adjust the centering of the steering wheel on the four-wheel alignment bench. Calibrate the steering wheel angle sensor. 1 - Protection Place protective pads at following locations: • Front fender; • Front bumper; • Driver’s seat; • Carpet (on driver's side); • Steering wheel; • Parking brake lever; • Shift lever.
2 - Operations • If the vehicle is in the flameout state, the power supply switch is turned to the ON position, and the steering wheel is in the centering state (the centering error is less than 5°), the operations must be completed on the four-wheel alignment bench. • Connect the scan tool connector and turn on the scan tool to enter the E70 model. • Select the function calibration item, display the list of sensors to be calibrated, select the steering wheel angle sensor calibration, and click OK. • “Calibration of steering wheel angle sensor succeed” is displayed.
• If the power is switched to OFF and kept for 15 s, and then the power is switched to ON, and the ESC fault lamp goes out after self-test, use the scan tool to clear the DTC of each electrical unit, and then the read the DTC to confirm that there is no fault. • Remove the scan tool connector and switch the power to OFF.