GM Service Manual Online
For 1990-2009 cars only

Powertrain Control Module (PCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Key ON, Engine OFF, Brake Pedal Released

Cruise

Transmission Data

Enabled/Disabled

Disabled

Cruise Control Active

Engine Data 1

Disengaged/Engaged

Disengaged

Cruise Inhibit Reason

Engine Data 1

1-6

Increment

Cruise Inhibit Signal Circuit Status

Output Driver Data

OK/Fault

OK

Cruise Inhibit Signal Command

Engine Data 1

ON/OFF

ON

Extended Travel Brake Pedal Switch

Engine Data 2

Applied/Released

Released

TCC Brake Pedal Switch

Engine Data 1

Applied/Released

Released