GM Service Manual Online
For 1990-2009 cars only

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

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

ABS Pump Motor

ABS

On/Off

Off

Brake Switch

ABS

Applied/Released

Released

Deceleration Sensor (AWD only)

ABS

Low/Middle/High

Low

Ignition Voltage

ABS

Volts

Varies

Left Front Wheel Speed

ABS

mph/km/h

0

Left Rear Wheel Speed

ABS

mph/km/h

0

LF Hold Solenoid

ABS

Active/Inactive

Inactive

LF Release Solenoid

ABS

On/Off

Inactive

LR Hold Solenoid

ABS

On/Off

Inactive

LR Release Solenoid

ABS

On/Off

Inactive

RF Hold Solenoid

ABS

On/Off

Inactive

RF Release Solenoid

ABS

On/Off

Inactive

Right Front Wheel Speed

ABS

mph/km/h

0

Right Rear Wheel Speed

ABS

mph/km/h

0

RR Hold Solenoid

ABS

On/Off

Inactive

RR Release Solenoid

ABS

On/Off

Inactive

Valve Relay State

ABS

On/Off

On

Vehicle Speed

ABS

mph/km/h

0