Scan Tool Data Definitions

Scan Tool Data Definitions
ABS Reference Speed: The scan tool displays 0 - 255 km/h (0 - 159 mph). The average speed of all four wheel speed sensor inputs.
Check Tires: The scan tool displays Yes or No. Yes indicates the TPM system has detected a low tire pressure and the tire pressures should be inspected.
Ignition Voltage: The scan tool displays 0-17 volts. The level of ignition voltage at the 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.
TIM Auto Learn Mode Active: The scan tool displays Yes or No. Yes indicates the TPM system is in the process of learning the tire pressure calibration for the speed range the vehicle is in. No indicates the TPM system has fully learned the tire pressure calibration for the speed range the vehicle is in.
TIM Failed: The scan tool displays Yes or No. Yes indicates the TPM system is disabled due to a malfunction. No indicates the TPM system is operating to specification.
TIM Monitor Mode 1: The scan tool displays Yes or No. Yes indicates the TPM system is in the initial stage of learning the tires pressure calibration and has no tire pressure detection capability for the speed range the vehicle is in. No indicates the TPM system has partially learned the tire pressure calibration and has limited tire pressure detection capability for the speed range the vehicle is in.
TIM Monitor Mode 2: The scan tool displays Yes or No. Yes indicates the TPM system has full detection capability for a low tire condition and has fully learned the tire pressure calibration for the speed range the vehicle is in. No indicates the TPM system has not completed monitor mode 1 and has limited tire pressure detection capability.