Hey me again, the other day my van did something I've never seen it do before. I was driving with the ac on max and went to shut the ac off and it would not shut off. Anyways I get home, park and shut van off and take key out and blower motor is still drawing power. I took a peek at the electrical connector that plugs into the resistor and seen that one of the terminals was melted and the other 3 were fine. I'm assuming the one that was melted controlls the highest fan speed. Also noticed that melted pin looked rusted for whatever reason. I plan on replacing that connector. Just worried what would cause it to draw power even after key is off AND taken out??

 

Replace the blower resistor and the pigtail for it and I'm sure the problem will be gone. I don't have a wiring diagram in front of me, but if I remember correctly, power goes to the resistor, then speed is controlled by grounding the various resistor points. So, any short to ground after the resistor will allow the blower to run.

 

Isn't the blower powered thru a relay though??

 

here's both pigtails to the blower, resistor and relay. Somehow transmission fluid and water has found its way into the relay box. Looks like I'll be going to a junkyard soon, clipping the whole wiring harness and re wiring it to mine. I'd say this one is shot, wouldn't you?

 

See what is plugged in down on the trans, that is exposed to fluid, see if you have a sensor or plug that is letting fluid into the wiring harness. Fluid will wick a long way up the harness.