GM Service Manual Online
For 1990-2009 cars only

ABS Data

Ignition ON, Engine OFF, Transmission in Neutral or Park, and Brake Unapplied

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

ABS Active

ABS

No/Yes

No

ABS Warning Lamp

ABS

On/Off

Off

Brake Switch

ABS

Applied/Released

Released

Ignition Voltage

ABS

Volts

Varies

Left Front Wheel Speed

ABS

mph/km/h

0

Left Rear Wheel Speed

ABS

mph/km/h

0

LF Solenoid Commanded

ABS

Active/Inactive

Inactive

LF Solenoid Monitor

ABS

Active/Inactive

Inactive

LR Solenoid Commanded

ABS

Active/Inactive

Inactive

LR Solenoid Monitor

ABS

Active/Inactive

Inactive

Pump Motor Commanded

ABS

On/Off

Off

Pump Motor Monitor

ABS

On/Off

Off

RF Solenoid Commanded

ABS

Active/Inactive

Inactive

RF Solenoid Monitor

ABS

Active/Inactive

Inactive

Right Front Wheel Speed

ABS

mph/km/h

0

Right Rear Wheel Speed

ABS

mph/km/h

0

RR Solenoid Commanded

ABS

Active/Inactive

Inactive

RR Solenoid Monitor

ABS

Active/Inactive

Inactive

Valve Relay State

ABS

On/Off

On