For 1990-2009 cars

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Conditions: Ignition ON, Engine OFF, All doors closed
Anti-Lockout Driver Enabled | Option Configuration | On/Off | On
Battery 1 | Door Lock Data | Volts | 12V
Driver Door Switch | Door Lock Data | Open/Closed | Closed
Pass Door Switch | Door Lock Data | Open/Closed | Closed
Door Lock Switch | Door Lock Data | Volts | 10.9V
Lock All Doors Fdbk. | Door Lock Data | On/Off | Off/On
Unlock All Doors Fdbk. | Door Lock Data | On/Off | Off/On
Driver Door Unlock Fdbk. | Door Lock Data | On/Off | Off/On
Decoded Switch State | Door Lock Data | Lock Unlock, Off | Off