GM Service Manual Online
For 1990-2009 cars only

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Key On, Engine Off

Last Fob Used

Key Fob Information

None, 1, 2, 3, 4, or 5

Varies

Last Key Pressed On Fob

Key Fob Information

No Key Press, Unlock, Lock, Low Batt., Trunk, Valet, Panic

No Key Press

Last Alarm Cause

Security Data

Ultrasonic Fault, Ultrasonic Sen., Ignition, Troun, Hood, Door, None

None

2nd to Last Alarm Cause

Security Data

Ultrasonic Fault, Ultrasonic Sen., Ignition, Troun, Hood, Door, None

None

3rd to Last Alarm Cause

Security Data

Ultrasonic Fault, Ultrasonic Sen., Ignition, Troun, Hood, Door, None

None

4th to Last Alarm Cause

Security Data

Ultrasonic Fault, Ultrasonic Sen., Ignition, Troun, Hood, Door, None

None

5th to Last Alarm Cause

Security Data

Ultrasonic Fault, Ultrasonic Sen., Ignition, Troun, Hood, Door, None

None