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.

Accessory Switch

Inputs

Active/Inactive

Active

Battery Voltage

Data

Volts

12.5

Ignition Unlock

Inputs

Active/Inactive

Active

Key in Ignition

Inputs

Yes/No

Yes

Module Part Number

ID information

8 digits

XXXXXXXX

Run/Crank

Inputs

Active/Inactive

Active

Software Design Suffix

ID information

2 digits

XX

Software Part Number

ID information

8 digits

XXXXXXXX