Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
From what is described here this sounds like a possible fault with the heater/ac control unit on the dash itself.I have seen this unit fail in the past before needing replaced for issues similar to this here.What needs to be done is to have the fault codes read out/checked to see what codes are set.Once this is done any codes set need diagnosed to help locate the fault here.This has to be done with a compatible scan tool that can plug in and communicate with all computers.
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