GM Service Manual Online
For 1990-2009 cars only

Powertrain Control Module (PCM) 3.8L

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

Commanded Gen

Engine Data 1

Disabled /Enabled

Disabled

Starter Inhibit

Engine Data 2

Disabled /Enabled

Disabled

Starter Enabled Relay

Output Driver Data

OK/Fault

OK

VTD Fuel Disable

Engine Data 2

Yes/No

No

Powertrain Control Module (PCM) 5.7L

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

Generator L Terminal

Engine Data 2

Disabled /Enabled

Disabled

VTD Fuel Disable

Engine Data 1, Engine Data 2

Yes/No

No