For 1990-2009 cars
Steering Position Sensor: The scan tool displays 4.1-2.5 volts. The output, or signal voltage of the steering position sensor to the EBCM.
Vehicle Speed: The scan tool displays 0-255 km/h (0-159 mph). The actual speed of the vehicle.
VES Actuator Commanded: The scan tool displays 0.0-619.0 mA. The amount of current that the EBCM is commanding to the VES actuator.
VES Actuator Feedback: The scan tool displays 0.0-619.0 mA. The amount of current returning to the EBCM from the VES actuator.