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

Body Control Module (BCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON, Engine OFF

Auto Learn Timer Status

Security Data

Seconds

0 Seconds

Battery 1

Security Data

Volts

9-16 Volts

First Alarm Activation

Security Data

Default, Driver Door, Pass Door, Trunk, Power Mode

Default

Horn Relay Cmd.

Security Data

On/Off

Off

Lockout Timer Status

Security Data

Seconds

0 Seconds

Passlock Data Voltage

Security Data

Volts

3.80 Volts

Passlock Power Feedback

Security Data

Active/Inactive

Active

Passlock Power Output

Security Data

On/Off

On

Second Alarm Activation

Security Data

Default, Driver Door, Pass Door, Trunk, Power Mode

Default

Security Lamp Status

Security Data

On/Off

Off

Security LED Cmd.

Security Data

On/Off

Off

Security LED Request

Security data

Off, On, Flash

Off, On, Flash

Seed and Key Timer Status

Security Data

Seconds

0 Seconds

Theft Previously Alarmed

Security Data

Yes/No

No

Theft System Status

Security Data

Disabled, Disarmed, Pre arm, Armed, Pre alarm, Alarm, Passive arm

Disarmed

Third Alarm Activation

Security Data

Default, Driver Door, Pass Door, Trunk, Power Mode

Default

Powertrain Control Module (PCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON, Engine OFF

VTD Auto. Learn Timer

Engine Data 3

Active/Inactive

Inactive

VTD Fuel Disable

Engine Data 3

Acitve/Inactive

Inactive