Re: 02 Windstar Power staying on to most circuits with key pulled and in the off position.
You should get a full light going from positive to ground on the battery. There are also several relays that are hot at all times, the relay is controlled by making the neutral, thus, the coil is always hot. Have Advanced\O'Reilly's\AutoZone check the battery and alternator. As far as the brake indicators, what's the condition of the brakes?
Chewing on asphalt and drinking dinosaur wine