View Full Version : How do I check heat/ac blower? Anybody wiring diagram?
marcink99
06-08-2016, 12:23 PM
My ac/heat blower stopped working. Based on my research it could be motor or the relay. How would I check the motor? I unplugged the motor plog it has 4 wires. Red green, brown,yellow,brown black. I want to connect power directly to motor and see if it will spin.
I replaced my motor mounts last week so not sure if that has something to do with it.... I did raise my engine up.
fly300kts
06-08-2016, 12:28 PM
When you say motor you mean AC compressor?
Inside the car, can you select AUTO or the button is stuck on ECO?
Phil
marcink99
06-08-2016, 12:45 PM
When I say motor I am referring to actual blower. The interior one that blows air through out the cabin.
Inside cabin I am able to click auto or Eco but no air blows through the vents.
I changed my engine mounts last week. Not sure if me raising the engine may have disconnected something.
marcink99
06-08-2016, 12:48 PM
Hmm ok i just plugged the plug back in and it works..... not sure what to think of it.... thanks Phil for trying to help out.
Theiceman
06-08-2016, 12:53 PM
FWIW vagcom has an excellent exercise and test routine for the blowers and vent motors.