GM Service Manual Online
For 1990-2009 cars only

Data Display/Definitions

The Scan Tool Data Display/Definitions contains a brief description of all the antilock brake system (ABS), traction control system (TCS), and vehicle stability enhancement system (VSES) data parameters. The menus available depend on the number and type of system on the vehicle and are listed below in alphanumeric order.

    • ABS DATA
    • TCS DATA
Battery Voltage: The scan tool displays 0-17 Volts. The scan tool displays the level of ignition voltage at the electronic brake control module (EBCM).

Brake Switch: The scan tool will display Applied or Released depending on the state of the brake switch.

LF Inlet Valve Solenoid Inactive: The scan tool will display Active or Inactive. The scan tool displays the commanded state of the LF inlet solenoid valve.

LF Outlet Valve Solenoid Inactive: The scan tool will display Active or Inactive. The scan tool displays the commanded state of the LF outlet solenoid valve.

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.

LF Valve Solenoids: The scan tool will display Apply or Released. The scan tool displays the commanded state of the LF solenoid valve.

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.

LR Inlet Valve Solenoid Inactive: The scan tool displays Active or Inactive. The scan tool displays the commanded state of the LR inlet solenoid valve.

LR Outlet Valve Solenoid Inactive: The scan tool displays Active or Inactive. The scan tool displays the commanded state of the LR outlet solenoid valve.

LR Valve Solenoids: The scan tool will display Apply or Released. The scan tool displays the commanded state of the LR solenoid valve.

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

Pump Motor Relay Feedback: The scan tool displays On or Off. The scan tool displays the feed back state of the pump motor relay.

RF Inlet Valve Solenoid Inactive: The scan tool displays Active or Inactive. The scan tool displays the commanded state of the RF inlet solenoid valve.

RF Outlet Valve Solenoid Inactive: The scan tool displays Active or Inactive. The scan tool displays the commanded state of the RF outlet solenoid valve.

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.

RF Valve Solenoids: The scan tool will display Apply or Released. The scan tool displays the commanded state of the RF solenoid valve.

RR Inlet Valve Solenoid Inactive: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the RR inlet solenoid valve.

RR Outlet Valve Solenoid Inactive: The scan tool displays Active or Inactive - The scan tool displays the commanded state of the RR outlet solenoid valve.

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.

RR Valve Solenoids: The scan tool will display Apply or Released. The scan tool displays the commanded state of the RR solenoid valve.

Traction Switch: The scan tool displays Pressed or Released. The scan tool will display the state of the Traction Control Switch.

Traction Switch LED: The scan tool will display On or Off depending on the state of the switch (LED) indicator.

Valve Relay: The scan tool will display On/Off depending on the state of the relay.

Valve Relay State: The scan tool will display On/Off depending on the state of the relay.