GM Service Manual Online
For 1990-2009 cars only

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON, Engine OFF, All doors closed

Battery 1

Door Locks

Volts

Varies

Driver Door Switch

Switch Inputs

High/Low

High with door closed

Driver Unlock Relay Cmd.

Door Locks

On/Off

Off

Driver Unlock Relay Fdbk.

Door Locks

High/Low

Low

Liftgate Ajar Switch

Switch Inputs

High/Low

High with liftgate closed

Lock All Relay Cmd.

Door Locks

On/Off

Off

Lock All Relay Fdbk.

Door Locks

High/Low

Low

Lock Switch

Door Locks/Switch Inputs

On/Off

Off

Pass Door Switches

Switch Inputs

High/Low

High with doors closed

Pass. Unlock Relay Cmd.

Door Locks

On/Off

Off

Pass. Unlock Relay Fdbk.

Door Locks

High/Low

Low

Remote Lock Cmd.

Door Locks

Yes/No

No

Remote Panic Cmd.

Door Locks

Yes/No

No

Remote Unlock Cmd.

Door Locks

Yes/No

No

Unlock Switch

Door Locks/Switch Inputs

On/Off

Off