Scan Tool Data Definitions

WARNING: This page is about a different car, the 2007 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

ABS Reference Speed: The scan tool displays 0-255 km/h (0-159 mph). The average speed of all four wheel speed sensors.
Ignition Voltage: The scan tool displays 0-17 volts. The amount of ignition voltage available at the Electronic Brake Control Module (EBCM).
LF Wheel Speed: The scan tool displays 0-255 km/h (0-159 mph). The actual speed of the left front wheel.
LR Wheel Speed: The scan tool displays 0-255 km/h (0-159 mph). The actual speed of the left rear wheel.
RF Wheel Speed: The scan tool displays 0-255 km/h (0-159 mph). The actual speed of the right front wheel.
RR Wheel Speed: The scan tool displays 0-255 km/h (0-159 mph). The actual speed of the right rear wheel.
Switched System Battery Voltage: The scan tool displays 0-17 volts. The amount of voltage available to the VES actuator when the ABS relay is activated.
VES Failed: The scan tool displays Yes or No. Yes indicates a malfunction has been detected within the VES system. No indicates the VES system is operating to specification.