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

Accessory Relay Command

Outputs

On/Off

Off

Auto Door Locks Mode

Data

Enabled/Disabled

Enabled

Auto Door Unlock Method

Data

Key/Park

Park

Auto Door Unlock Mode

Data

None/Driver/All/Invalid

Driver

Battery Voltage

Data

Volts

12.8 V

Door Ajar Switch

Inputs

Door Closed/Door Ajar

Door Closed

Door Cylinder Switch

Inputs

Idle/Lock/Unlock

Idle

Door Cylinder Switch

Outputs

Volts

Volts

Door Lock Switch

Inputs

Idle/Lock/Unlock

Idle

Door Lock Switch

Outputs

Volts

Volts

Driver Door Ajar Switch

Inputs

Door Closed/Door Ajar

Door Closed

Driver Door Lock Actuator Command

Outputs

Idle/Lock/Unlock/Invalid

Idle

Key Lock/Unlock Enable

Data

Enabled/Disabled

Enabled

Passenger Doors Lock Actuator Command

Outputs

Idle/Lock/Unlock/Invalid

Idle

Rear Defog Relay Command

Outputs

ON/OFF

OFF

Rear Defog Switch

Inputs

ON/OFF

OFF