Lateral Accelerometer: Service and Repair

ESP Sensor Unit (G419)

The transverse acceleration sensor (G200) , rotation rate sensor (G202) and the longitudinal acceleration sensor (G251) are installed in one housing, together with the electromechanical parking brake control module (J540) under the center console.

After replacing the ESP sensor unit with the electromechanical parking brake control module, the ABS control module (J104) must be coded and a basic setting of the "Brake system" (Electromechanical Parking Brake) must be performed.

Excessive shaking (for example, dropping, impact) may damage the ESP sensor unit. The ESP sensor unit must then no longer be used.

Removing

- Remove the center console.

- Disconnect connector - 1 - from the ESP sensor unit.






- Remove the three nuts - arrows -.

- Remove ESP sensor unit.

Installing

- Install in reverse order of removal.

When installing ESP sensor unit, be sure it is properly seated on the bracket and is free of tension.

• Never force ESP sensor unit into position using nuts.

- Tighten the nuts to 9 Nm.

- Code the ABS control module with the vehicle diagnostic tester in "Guided Fault Finding".

A steering angle sensor (G85) , transverse acceleration sensor, brake pressure sensor 1 (G201) and longitudinal acceleration sensor basic setting must be done.

- Perform basic setting for "Brake system" (Electromechanical Parking Brake).

Vehicle diagnostic tester, connecting and selecting functions. Refer to => [ Vehicle Diagnosis, Testing and Information System ] Testing and Inspection.