I had searched up how to install a new unit in, which worked out really well. But now I put it in accessory and the fan didn't do anything. Does the fan not run in accessory? Or is there something wrong? All the lights are on when pressed, as well as lit up when you put the interior lights on, so does anyone kno what the problem is? I didn't start the car because it was in the garage and for me to let the car heat up correctly and then shut it off is kinda pointless. Any help is greatly appreciated.

Adam

 

Swap out the fan housing with a known good one. There's a transistor mounted on the fwd side of it that blows out.

Also, next time, with the key to ON, slide the slider all the way to the right and hold it all the way to the right then see if the fan does or does not blow at low speed.

And or remove just the fan and jumper 12vdc and a gnd to the fan plug and see if the fan is any good or not.

You did check the fuses, right? Yes. I assumed so.

 

checked fuses before I replaced it, they were good. I'll see if I can check the fan and such...

 

There's a round relay in front of the fan housing area. Pull it out and set it aside. See in the plug the Red/Yellow and Blue/White wires???? JUmper them together. The fan should run at high speed and high speed only. One wire is pwr and the other heads for the fan itself.

See if that makes the fan work. Key to ON and slider anywhere off far left.