Calibration of lateral acceleration and
longitudinal acceleration sensors
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
• It is necessary to calibrate the lateral
acceleration and longitudinal acceleration
sensors after the ESC hydraulic control unit
is replaced.
• It is necessary correctly refit the ESC
hydraulic control unit and calibrate the lateral
acceleration and longitudinal acceleration
sensors if the ESC hydraulic control unit has
been removed or replaced. If the installation
location is not correct, the sensor cannot be
successfully calibrated. In order to avoid
large calibration error of the lateral
acceleration sensor caused by the left and
right tilt of the vehicle, large calibration error
of the longitudinal acceleration sensor
caused by the front and rear pitch of the
vehicle, it is recommended to complete the
calibration on the four-wheel alignment
bench.
• Do not step on the brake pedal during the
calibration of the sensors to prevent the
calibration error of the pressure sensor from
being above the standard value.
• Connect the special scan tool to diagnostic
interface.
• Turn the ignition switch or start-stop button to
the “ON” position.
• Enter the “Diagnostic Function Interface” of
the scan tool to select the E70 model.
• Select the “Electronic Stability Control
(ESC)” menu to proceed to the next step.
• Click “Lateral Acceleration and Longitudinal
Acceleration Sensors” in the “Electronic
Stability Control (ESC)” menu.
• Calibration of lateral acceleration and
longitudinal acceleration sensors is
completed if the “Calibration Succeed” is
displayed.
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