For 1990-2009 cars

#### Body Control Module (BCM)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Ignition ON/Engine OFF
Battery 1 | Ignition | Volts | 12.6 Volts

#### Engine Control Module (ECM)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Ignition ON/Engine OFF/Clutch Depressed or Transmission in Park or Neutral
Generator L-Terminal | General Info - Inputs | On/Off | Off
Ignition 1 | General Info - Outputs | Volts | 12.6 Volts