GM Service Manual Online
For 1990-2009 cars only

ALC Scan Tool Data List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Battery Voltage

Data

B+

Varies

Sensor Position

Data

- 30 - + 30 millimeters

15mm

Sensor Position

Data

0 - 255 A/D counts

170

Vehicle Speed Signal

Data

Active/Inactive

Inactive