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:

ABS/TCS Data Scan Tool Data List

Parameter

Unit

Battery 1

Volts

Park Brake Switch

On/Off

Traction Switch

On/Off

Switch Inputs Scan Tool Data List

Parameter

Unit

A/C Request

Yes/No

Battery 1

Volts

Driver Door Switch

Release/Applied

High Blower Input

Volts

HVAC Afterblow

On/Off

HVAC Afterblow Feedback

High/Low

Key In Ignition

Yes/No

Low Brake Fluid

Yes/No

Low Coolant

Yes/No

Park (BTSI) Relay Command

High/Low

Park (BTSI) Relay Feedback

High/Low

Park Brake Switch

On/Off

Passenger Door Switches

Release/Applied

Rear Defog Relay Command

On/Off

Rear Defog Relay Feedback

High/Low

Rear Defog Switch

On/Off

Exterior Lamps Scan Tool Data List

Parameter

Unit

Battery 1

Volts

DRL Relay Command

On/Off

DRL Relay Feedback

High/Low

High Beam Input

Volts

Low Beam Input

Volts

Park Lamp Switch

On/Off

Interior Lamps Scan Tool Data List

Parameter

Unit

Battery 1

Volts

Cargo Lamp On

On/Off

Dome Lamp Command

On/Off

Driver Door Switch

Release/Applied

I/P Dimmer Input

Volts

Inadvertent Load Monitor

On/Off

Key In Ignition

Yes/No

Passenger Door Switches

Release Applied

Door Locks Scan Tool Data List

Parameter

Unit

All Door Unlock Feedback

High/Low

All Door Unlock Relay Command

On/Off

Battery 1

Volts

Driver Unlock Relay Command

On/Off

Driver Unlock Relay Feedback

High/Low

Lock All Relay Command

On/Off

Lock All Relay Feedback

High/Low

Passenger Unlock Relay Feedback

High/Low

Trunk Release Solenoid Command

On/Off

Trunk Release Solenoid Feedback

High/Low

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

Passenger lock Input

Volts

Passenger lock Power Command

On/Off

Passenger lock Power Feedback

High/Low

Security LED

On/Off/Flash

Seed and Key Timer

Seconds