Ok so you are talking blower motor under the dash.So you are saying you can turn on the blower with the car off rite?Or are you just talking bout the lights stay on?You have to be specific the blower motor,recirculation motor,air mix door and the heater control panel lights are all different wiring diagrams + their were 3 fans to chose from I gest wrong.

I think you are just talking about the lights.

On the heater control panel their is a red black wire(pin 9) It should have 12v with the combo switch in park or head not all the time.Check it and see if you have 12v all the time.

Get back with me and we will go from their.LOL