GM Service Manual Online
For 1990-2009 cars only

The Data Display function contains lists of ABS and TCS data parameters. A brief description of all ABS and TCS data parameters available on the scan tool are listed below. The list is arranged in alphabetical order.

ABS Warning Lamp: The scan tool displays Off or On. Indicates if the EBCM is commanding the ABS indicator ON.

Battery Voltage: The scan tool displays 0-17 volts - The scan tool displays the level of ignition positive voltage at the EBCM.

Brake Switch: The scan tool displays Applied or Released - The scan tool displays the state of the brake switch.

Left Front Wheel Speed: The scan tool displays 0-255 km/h (0-158 mph) - The scan tool displays the actual speed of the left front wheel.

Left Rear Wheel Speed: The scan tool displays 0-255 km/h (0-158 mph) - The scan tool displays the actual speed of the left rear wheel.

LF Dump Valve Command: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the LF dump valve.

LF Dump Valve Feedback: The scan tool displays Active or Inactive - The scan tool displays the actual state of the LF dump valve.

LF Hold Valve Command: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the LF hold valve.

LF Hold Valve Feedback: The scan tool displays Active or Inactive - The scan tool displays the actual state of the LF hold valve.

LR Dump Valve Command: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the LR dump valve.

LR Dump Valve Feedback: The scan tool displays Active or Inactive - The scan tool displays the actual state of the LR dump valve.

LR Hold Valve Command: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the LR hold valve.

LR Hold Valve Feedback: The scan tool displays Active or Inactive - The scan tool displays the actual state of the LF hold valve.

Pump Motor Relay: The scan tool displays On or Off - The scan tool displays the commanded state of the pump motor.

Right Front Wheel Speed: The scan tool displays 0-255 km/h (0-158 mph) - The scan tool displays the actual speed of the right front wheel.

Right Rear Wheel Speed: The scan tool displays 0-255 km/h (0-158 mph) - The scan tool displays the actual speed of the right rear wheel.

RF Dump Valve Command: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the RF dump valve.

RF Dump Valve Feedback: The scan tool displays Active or Inactive - The scan tool displays the actual state of the RF dump valve.

RF Hold Valve Command: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the RF hold valve.

RF Hold Valve Feedback: The scan tool displays Active or Inactive - The scan tool displays the actual state of the RF hold valve.

RR Dump Valve Command: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the RR dump valve.

RR Dump Valve Feedback: The scan tool displays Active or Inactive - The scan tool displays the actual state of the RR dump valve.

RR Hold Valve Command: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the RR hold valve.

RR Hold Valve Feedback: The scan tool displays Active or Inactive - The scan tool displays the actual state of the RR hold valve.

Valve Relay State: The scan tool displays On or Off - The scan tool displays the commanded state of the valve relay.