ABS

Scan Tool Data
The parameter data below are values measured with the scan tool when the normally operating vehicle is under the following conditions. When taking measurements for comparison by using the scan tool, be sure to check that the vehicle is under the following conditions.
^ Apply parking brake and block wheels.
^ Ignition switch ON.
^ Turn OFF air conditioner (if equipped).
^ Apply no load to power steering (if equipped). (Don't turn it)
^ Turn OFF all electric loads (except ignition).
^ No DTC.
^ ABS is not operated. (Normal braking operation)





Scan Tool Data Definition
Battery Volt (V) Battery Voltage is an analog input signal read by the ABS ESP(R) control module. Certain ABS ESP(R) control module functions will be modified if the battery voltage falls below or rises above programmed thresholds.
Pump Motor Driver (V) This parameter indicates the operational condition of the pump motor driver (transistor).
RF Wheel Speed, LF Wheel Speed, RR Wheel Speed and LF Wheel Speed (km/h, MPH) Wheel speed is an ABS ESP(R) control module internal parameter. It is computed by reference pulses from the wheel speed sensor.
Brake Switch (ON, OFF) This switch signal informs the ABS ESP(R) control module whether the brake is active or not.
G Sensor (G) The G-Sensor converts gravity during the vehicle acceleration / deceleration in to a voltage conditions and controls the ABS for 4WD vehicle. (without ESP(R) Vehicle acceleration is measured by yaw rate / G sensor assembly and output to ESP(R) control module by pulse signal for 4WD vehicle. (with ESP(R)