Dog house? This is a van. Clip your test light to the wire you want to test. Run it through the dog house and ground it to the engine. Test light doesn't care which way it goes.
My truck has both a solenoid on the starter and a solenoid (relay) on the left fender for the starter. I don't know what yours has but I suspect you have both also.
You jumped the terminals at the starter so you know you have battery power there.
Look for a round solenoid in the engine compartment with the battery positive connected to it.
But first, please slowly drag the shifter down through all the gears with the key turned to start. See if it isn't the neutral safety switch adjustment.
My truck has both a solenoid on the starter and a solenoid (relay) on the left fender for the starter. I don't know what yours has but I suspect you have both also.
You jumped the terminals at the starter so you know you have battery power there.
Look for a round solenoid in the engine compartment with the battery positive connected to it.
But first, please slowly drag the shifter down through all the gears with the key turned to start. See if it isn't the neutral safety switch adjustment.