View Full Version : Rear window defroster wiring diagram
06-27-2010, 09:24 AM
I need the wiring diagrams from a 2000 Mustang rear window defroster, and the diagrams from a 2004 Mustang. The reason is because Im almost done making my interior an 04 but Im hung up on the window defrost button. Please help ASAP
06-27-2010, 11:07 AM
Ive been trying to google them but to no avail. When I unpluged the old switch, at first I made temporary connectors to make sure its all going to work. When the orange light didnt come on I unplugged everything and plugged the old switch back in. And now its not working anymore. The oragne light on both switches does not come on when the defroster is active. I checked the fuse and it apears to be ok, the connections on the window are good. So im not sure where to go from this point.
06-27-2010, 01:53 PM
I was looking around under the dash and I cant seem to find the relay for the rear defoger. Anyone know where this thing might be?
07-03-2010, 11:34 AM
Ok so after a thorough inspection of the defroster system I have discovered that the 94-00 switch is infact also the relay. Thats why it wasn't working with the other switch. So I went to the junk yard and found a 01-04 Mustang I picked up the correct relay and the wiring harness. The thick black wire and the thick brown with blue stripe wire are there. Now one thing Im confused about is on the switch there is a black with yellow stripe wire. On the relay there is a yellwo with black stripe wire. Where are these two wires supposed to hook to?
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