For 1990-2009 cars

The ABS Scan Tool Data Definitions contain a brief description of all the ABS/traction scan tool parameters. This list is in alphanumeric order.

ABS Active: The scan tool displays Yes or No. The scan tool displays Yes when the ABS is active. This scan tool displays No during normal vehicle operation.
ABS Relay Command: The scan tool displays On or Off. The scan tool displays On during vehicle operation. The EBCM commands the ABS relay On when Ignition 1 is present.
ABS Relay Feedback: The scan tool displays On or Off. The scan tool displays On during vehicle operation.
ABS Warning Lamp: The scan tool displays Off or On - The scan tool displays if ABS warning indicator is currently being commanded ON.
Brake Fluid Level: The scan tool displays Low or Normal - The scan tool displays if the brake fluid level is below the standard operating level.
Brake Switch Status: The scan tool displays Applied or Released - The scan tool displays the state of the brake switch.
Brake Temp Status: The scan tool displays Normal or Over Temp - The scan tool displays if the brake temperature is above the traction control thermal cutoff point. If brake temperatures are above the thermal cutoff point, Over Temp is displayed and traction control is temporarily suspended until the brake temperature cools below the cutoff. This feature is used to maintain braking effectiveness if the base braking system is required. Overly heated brakes could result in brake fade.
Configuration ID: The scan tool displays 6 characters - The scan tool displays the configuration ID number of the EBCM.
DE Base Part Number: The scan tool displays 4 characters - The scan tool displays the base part number of the EBCM.
DE Build Sequence Number: The scan tool displays 8 characters - The scan tool displays the build sequence number of the EBCM.
DE Calibration Part Number: The scan tool displays 4 characters - The scan tool displays the calibration number of the EBCM.
DE End Model Part Number: The scan tool displays 4 characters - The scan tool displays the end model part number of the EBCM.
DE ROM Part Number: The scan tool displays 4 characters - The scan tool displays the ROM part number of the EBCM.
EBCM to PCM Requested Torque: The scan tool displays 0-100 percent - The scan tool displays the duty cycle of the Delivered Torque PWM signal. The duty cycle of the signal is used to transmit how much torque the EBCM is requesting the PCM to deliver. Normal values are between 10 and 90 percent duty cycle. The signal should be at 90 percent duty cycle when traction control is not active and at lower values (approximately 10 percent) when traction control is active.
Ignition Voltage: The scan tool displays 0-17 Volts - The scan tool displays the level of ignition voltage at the EBCM.
Julian Date Code: The scan tool displays year/day - The scan tool displays the last digit of the year and the day of the year that the EBCM was built.
LF Inlet Valve Solenoid: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the LF inlet solenoid valve.
LF Outlet Valve Solenoid: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the LF outlet solenoid valve.
LF Rotor Temperature: The scan tool displays -40 to 650°C or -40 to 1202°F - The scan tool displays the estimated temperature of the brake rotor.
LF Wheel Speed: The scan tool displays 0-255 km/h or 0-158 mph - The scan tool displays the actual speed of the left front wheel.
LR Inlet Valve Solenoid: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the LR inlet solenoid valve.
LR Outlet Valve Solenoid: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the LR outlet solenoid valve.
LR Wheel Speed: The scan tool displays 0-255 km/h or 0-158 mph - The scan tool displays the actual speed of the left rear wheel.
PCM to EBCM Delivered Torque: The scan tool displays 0-100 percent - The scan tool displays the duty cycle of the Requested Torque PWM signal. The duty cycle of the signal is used to transmit how much engine torque the PCM is delivering. Normal values are between 10 and 90 percent duty cycle. The signal is at low values (approximately 10 percent) at idle and at higher values under driving conditions.
Pump Motor Relay Commanded State: The scan tool displays On or Off - The scan tool displays the commanded state of the pump motor control relay.
Pump Motor Relay Feedback State: The scan tool displays On or Off - The scan tool displays the actual state of the pump motor control relay.
RF Inlet Valve Solenoid: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the RF inlet solenoid valve.
RF Outlet Valve Solenoid: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the RF outlet solenoid valve.
RF Rotor Temperature: The scan tool displays -40 to 650°C or -40 to 1202°F - The scan tool displays the estimated temperature of the right front brake rotor.
RF Wheel Speed: The scan tool displays 0-255 km/h or 0-158 mph - The scan tool displays the actual speed of the right front wheel.
Rough Road Parameter: The scan tool displays 0-1g - The scan tool displays the EBCM calculation of the road surface roughness. This information is sent to the PCM over the class 2 serial data line. The PCM uses this information for misfire detection.
RR Inlet Valve Solenoid: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the RR inlet solenoid valve.
RR Outlet Valve Solenoid: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the RR outlet solenoid valve.
RR Wheel Speed: The scan tool displays 0-255 km/h or 0-158 mph - The scan tool displays the actual speed of the right rear wheel.
Switched Battery Voltage: The scan tool displays 0-17 Volts - The scan tool displays the level of the internal EBCM switched battery voltage available to the solenoid valves and pump motor.
System ID: The scan tool displays 4 characters - The scan tool displays the system ID number of the EBCM.
TCS Active: The scan tool displays Yes or No - The scan tool displays if TCS is currently in a TCS event or not.
TCS Active Lamp: The scan tool displays Off or On - The scan tool displays if the TCS indicator is currently being commanded ON.
TCS Disable Lamp: The scan tool displays Off or On - The scan tool displays the EBCM commanded state of the TCS disable indicator.
TCS Enable Status: The scan tool displays Off or On - The scan tool displays the state of the TCS based on if the driver has disabled TCS by pressing the Traction Control switch, or if the TCS is disabled because of a malfunction.
TCS Equipped: The scan tool displays Yes or No - The scan tool displays if vehicle is equipped with TCS or not.
TCS Failed: The scan tool displays Yes or No - The scan tool displays if TCS is disabled due to a malfunction.
TCS Switch State: The scan tool displays Pressed or Released - The scan tool displays if the traction control switch is currently being depressed by the driver.
TCS Warning Lamp: The scan tool displays Off or On - The scan tool displays if TRACTION OFF indicator is currently being commanded ON.
Vehicle Speed: The scan tool displays 0-255 km/h or 0-158 mph - The scan tool displays the vehicle speed.