Sensor Calibration
Precautions: Precautions for ESP® · Precautions for Diagnosing Trouble · Test with Speedometer Tester or Other Equipment · Precautions for Brakes · General safety (00)
NOTE:
•If any DTC other than C1074 and C1075 is detected, sensor calibration cannot be completed. Repair the cause of the DTC first.
•ESP® hydraulic unit / control module assembly has reference values for master cylinder pressure sensor and yaw rate / G sensor stored. Also steering angle sensor has its own reference point stored.
Traction control and stability control are performed according to the variation of these sensors from their reference points. If a reference value is lost or shifted due to the following maintenance, calibration is needed.
•All sensors are calibrated at once when calibration is performed.
•ESP® hydraulic unit / control module assembly has reference values for master cylinder pressure sensor and yaw rate / G sensor stored. Also steering angle sensor has its own reference point stored.
Traction control and stability control are performed according to the variation of these sensors from their reference points. If a reference value is lost or shifted due to the following maintenance, calibration is needed.
| Sensor | Condition requiring calibration |
|---|---|
| Yaw rate / G sensor | Replacement or removal ESP® hydraulic unit / control module assembly (C1074). |
| Steering angle sensor | Replacement or removal ESP® hydraulic unit / control module assembly. Replacement or removal steering angle sensor (C1075). |
| Master cylinder pressure sensor | Replacement or removal ESP® hydraulic unit / control module assembly. |
1)Park vehicle on level surface, apply parking brake, set steering wheel in straight ahead position, stop engine and release brake pedal.
NOTE:
Keep condition of Step 1) until sensor calibration is completed, in order to calibrate sensor correctly.
2)Connect SUZUKI scan tool to DLC (1) with ignition “OFF”.
3)Set ignition “ON” and check that no DTC is detected except C1074 and C1075. If any DTC is detected, repair or replace trouble area.
4)Select menu “Sensor Calibration” under “Utility” mode of SUZUKI scan tool and calibrate sensor with ignition “ON”. Refer to Operator’s Manual of SUZUKI scan tool for further details.
5)After completing the calibration, check DTC(s) is not stored in ESP® hydraulic unit / control module assembly.
6)Check that ignition is “OFF” and then disconnect SUZUKI scan tool from DLC.