hey guys i have a 99 4.0. when I push my defroster switch to turn on, it doesn't stay on... I push it and the light comes on as I'm holding it down but when I let off, it turns off. I've checked the connections on the hatch and @ the mirrors(heated mirrors) checked the relay and the fuse. Tested it the other day on my way to work as the back window was froze and I held it down for a min or two and it defrosted the whole window so i know it actually works.. just wont stay on by itself... any ideas?

 

check the relay behind the dash, mine was the switch not holding the on position...

 

Where is it at?

 

check switch on dash the relay only does what the switch tells it to do

 

Check the Defrost switch? if so how?

 

by replacing it

 

I doubt its the switch, but i replaced it anyways.. still the same thing. Is there a timer or something somewhere? Something that tells the defroster to shut off?

 

ok next step - replace the relay. It's not a normal relay though, it's a 10min timer relay. It's bright red so you can't screw it up.



Grab a new one from the dealership.

 

This is the "kick Panel" right? the one at the bottom(rear Defogger defrost) is the only one? The current one i have now is black.... so wrong relay in there?

 

It could be black i guess - maybe that's your problem is it's the wrong relay type.

 

My guess is also the timer circuit in the relay.