Scan Tool Data Definitions

ABS Reference Speed: Displays 0 - 255 km/h (0 - 159 mph). The vehicle speed from the average of all four wheel speeds.
Calibration ID: Displays the 4 digit calibration ID of the EBCM.
Check Tires: Displays Yes or No. The status of the TIM system; whether or not the tires should be checked for proper air pressure.
Ignition Voltage: Displays 0 - 17 volts. The level of ignition voltage at the EBCM.
LF Wheel Speed: Displays 0 - 255 km/h (0 - 159 mph). The actual speed of the left front wheel.
LR Wheel Speed: Displays 0 - 255 km/h (0 - 159 mph). The actual speed of the left rear wheel.
PROM ID: Displays the 4 digit PROM ID of the control module.
RF Wheel Speed: Displays 0 - 255 km/h (0 - 159 mph). The actual speed of the right front wheel.
RR Wheel Speed: Displays 0 - 255 km/h (0 - 159 mph). The actual speed of the right rear wheel.
TIM Auto Learn Mode Active: Displays Yes or No. The status of the TIM learn mode.
TIM Failed: Displays Yes or No. The status of the TIM system. Indicates if the TIM is inactive due to a malfunction.
TIM Monitor Mode 1: Displays Yes or No. The status of the TIM mode 1 monitoring. The EBCM has limited detection capability for a low tire condition and has only partially learned the tire inflation configuration for the speed range.
TIM Monitor Mode 2: Displays Yes or No. The status of the TIM mode 2 monitoring. The EBCM has full detection capability for a low tire condition and has fully learned the tire inflation configuration for the kneed range.