ECU states and parameters processing

PARAMETERS

PR001: Front right wheel speed.

PR002: Front left wheel speed.

PR003: Rear right wheel speed.

PR004: Rear left wheel speed.

These parameters show the speed in km/h of each wheel of the vehicle.

PR005: Control unit supply voltage.

This parameter shows the ECU supply voltage in volts.

PR007: Longitudinal acceleration.

This parameter shows the longitudinal acceleration of the vehicle in ms-2. It must be 0 when stationary.

PR030: Speedometer index.

This parameter shows the speedometer index entered in the control unit for the tyres fitted to the vehicle.

PR033: Steering wheel angle.

This parameter shows the driver's steering wheel angle in degrees. This information is sent to the ESP via the multiplexed network by the EPS (electric power steering).

PR034: Yaw rate.

This parameter shows the yaw rate in °/s supplied by the dual sensor or combined sensor. It must be 0 when stationary.

PR036: Lateral acceleration.

This parameter shows the lateral acceleration in g supplied by the dual sensor or combined sensor.

It must be 0 when stationary.

PR038: Vehicle speed.

This parameter shows the vehicle speed in km/h.

PR064: ESP automatic reconnection threshold.

This parameter shows the ESP automatic reconnection threshold in km/h. This parameter must be 50 km/h. If the value is different, use command VP023.

STATES ET017: Brake pedal.

This state shows the position (pressed or released) of the brake pedal.

ET023: ESP ON/OFF button.

This state checks the operation of the ESP ON/OFF button. This state (pressed or released) is checked by pressing and holding this button.

ET030: Automatic brake light activation.

This state shows whether automatic brake light activation is allowed or prohibited during ESP intervention. This state can be set using commands VP021 and VP022 depending on the regulations in force in the country concerned.