Hey all,

I'm reaching my wit's end at the moment chasing this gremlin. I recently upgraded the HU to an aftermarket double din. in doing so I read up on the details involved and found the tidbit to jump the wires from the power button connector in order to maintain the heater controls operation. I did so with some tiny jumper wires, jumping 1-5, 2-6, etc and then taped them for stability, which worked for a while until natural driving vibrations loosened one or two. in trying to find a more permanent solution (and before my brain worked entirely) I attempted to use some bridged pins from a random connector i had in my bin of electronics. It was going alright, until I accidentally bumped 2 of the bridges and saw a tiny spark. As soon as it sparked, the blower motor came on full blast with no power to the heater controls and no way to turn it down. I quickly searched to find the 30 amp fuse for the blower motor, pulled it, waited a day, plugged it back in and the blower motor stayed off. Still, no power to the HVAC controls/heated seats/etc. I purchased a used hvac control panel off ebay to quickly swap in and make sure it wasn't the panel itself. the new/used panel also doesn't power up. I attempted to plug in my foxwell to do a scan, welp... no power to the OBD2 port either. It should be noted that central locking, and all the windows all still work, key fob included. So that gives me hope it isnt the body module.

I took a test light to each and every fuse behind the glovebox and each fuse that showed power, showed continuity, which confuses me based on what else I've read.

So what do you think I did? Did I blow the hedgehog resistor? is there a relay I possibly toasted? is there another fuse box I should check?

Any help is incredibly appreciated. I can bear with a summer of no AC but having no defog in rainstorms is sketchy, and I'd prefer to have heat come winter.

again, thanks for any help you can provide, I'm at a loss.

 

I have no advice for the A/C issue, but the OBD port fuse is in the passenger footwell. I had to replace it in my car. Very easy to do.

 

Thanks for pointing me in that direction. There was a blown 7.5A fuse. After finding a random search result with a diagram for that fuse block, it turns out it was the fuse for the diagnostic port AND HVAC controls! So i'm back in the land of conditioned air and comfort. again, huge thanks!