For 1990-2009 cars

#### Vehicle Control Systems Data

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Operating Conditions: Ignition ON, Engine OFF
Accessory Relay Command | Data | On/Off | On
Battery Voltage Signal | Data | Volts | 13.5
Ignition Mode Switch | Data | Volts | 4.02
Ignition Switch Accessory | Data | Active/Inactive | Active
Ignition Switch Run/Crank Signal | Data | On/Off | On
Key In Ignition Cylinder | Data | Yes/No | Yes
Power Mode | Data | Run, Accessory, Crank Request | Run
Run Crank Relay Command | Data | On/Off | On
Run Relay Command | Data | On/Off | On