GM Service Manual Online
For 1990-2009 cars only
Table 1: Body Control Module
Table 2: Powertrain Control Module

Body Control Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition in ON, Engine OFF

Theft Data

Data

Volts

0-5V

Auto Learn Timer

Security Data

Seconds

0-2550

His. DTC Cyc. Counts

Security Data

Counts

0-255

Lock-out Timer

Security Data

Seconds

0-2550

Passkey Data Voltage

Security Data

Volts

0-5V

Security Lamp State

Security Data

On/Off

Off

Seed and Key Timer

Security Data

Seconds

0-2550

Powertrain Control Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition in ON, Engine OFF

PCM/VCM in VTD Fail Enable

Engine Data 1

Yes/No

No

VTD Fuel Disable

Engine Data 1

Active/Inactive

Inactive

VTD Auto. Learn Timer

Engine Data 1

Active/Inactive

Inactive

VTD Fuel Disable Until Ign. Off

Engine Data 1

Yes/No

No