Scan Tool Parameter  | Data List  | Units Displayed  | Typical Data Value  | 
|---|---|---|---|
Ignition ON/Engine OFF (8.1L, L18)  | |||
Ignition 1 Signal  | Engine 1, 2 Data  | Volts  | 12v  | 
GEN L--Terminal Signal Command  | Engine 2 Data  | OK/No Voltage  | OK  | 
GEN F--Terminal Signal  | Engine 2 Data  | %  | 10-90%  |