GM Service Manual Online
For 1990-2009 cars only

The following table lists the security data directly connected to the body control module (BCM) related to the Passlock System only:

Security Data Scan Tool Data List

Parameter

Unit

Accessory

High/Low

Auto-Learn Timer

Seconds

Battery 1

Volts

Horn Relay Command

On/Off

Horn Relay Feedback

High/Low

Ignition 1

High/Low

Lockout Timer

Seconds

Passlock Input

Volts

Passlock Power Command

On/Off

Passlock Power Feedback

High/Low

Security LED

On/Off/Flash

Seed & Key Timer

Seconds