• 2 POSTS
  • 2002 CADILLAC
  • 6.0L
  • V8
  • AWD
  • 185,706 MILES

The problem that I am having is that my A/C is not working! When I turn it on the air blows only through the defrost and the air compressor does not come on when I push the A/C button on the computer climate control and nor does it switch from vent in face or to vents on the floor. I bypassed the relay switch and the compressor came on I even bought a new computer climate control and the same thing is happening I tried re-calibrating the system and still nothing when I had bypassed the relay switch I was able to charge it up it blew cold air only from the vents in the roof of the truck rear air I guess the fan blows hard it is just only coming out through the defrost. Can anyone help? Thanks

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have the same problem?
Friday, April 14th, 2017 AT 6:16 PM

1 Reply

  • 49,692 POSTS

I imagine this is auto temperature control so it needs to be scanned for codes to see what is wrong. One thing your mode actuator is not working so it is either bad or needs a reset. Also, since you changed control head it may need programming to your truck. This will need to be scanned for codes by a mechanic to see what is wrong. If this is a manual control where temperature is not set get back to us.

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Saturday, April 15th, 2017 AT 6:45 AM

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