• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

HVAC Wiring Issue

a3gtp

a3gtp

New member
I recently got my old GTP back from one of my friends, he owned it for about a year before selling it back to me (I needed a reliable car for work etc.). Anyways, within the last 2 months the blower motor stopped working altogether, he never bothered to fix it. So I removed the resistor to find it in horrible shape, next I jumped power to the motor which works fine. So I went ahead and replaced the resistor, the second I turned on the heat the resistor started smoking so I turned it off immediatly. It also blows the HVAC HI fuse the second I switch it to high on the dial. I'm pretty sure I have a short somewhere, I don't think it's the ignition switch in this case since literally everything else works perfectly. The only wire I got power from was the yellow wire on the multi pin connector on the resistor. So, does anyone have a wiring diagram or an helpful information? Thanks in advance.

BTW I am familiar with the water in the floorboard issue and that has been taken care of.
 


Ok, now that I've install a new connector I am getting power to each wire for its speed, the remaining two; thickest of the 2 orange and black have nothing. Black is obviously ground and the thick orange must be something else. My ground must be good since I have good power to all the other terminals so I must have a short in that orange wire. Does anyone have a schematic to tell me where the orange goes?
 
Just jumped power to that orange wire, spun blower on the high setting so that must be the wire that bypasses the resistor. Above I mentioned that power was going into the resistor connector (without the res. connected) at different wires with different dial speeds, as it should. With the resistor connected power flows into all the wires at once, except of course the thick orange and black ground. I'm assuming this is because the resistor is now toast. Is there a relay for the blower motor that I am not seeing, there's two mounted behind the glovebox to the right does anyone know what those are for?
 
Got it figured out, blower motor was apparently worn out, applied power to it again and the internals started squeling, picked up a new motor and resistor and alls good. The first new one must've smoked since it was working so hard trying to get the blower to spin.
 
You must log in or register to reply here.
Back
Top