The heater and a/c controls on my 98 Catera just shut down. It appears there is no power going to the control at all.

I have checked all fuses and they seem alright.

This just happened one day when i started the car it had no controls for the heater or a/c.

Since this happened the other day when i started it the controls came on and everything ran normally. The following day when i started it the controls where dead again.

Would anyone be able to give me an idea of where to start.

With the greatest of thanks Keith

Try that 20A fuse that says CIG

Was it the CIG fuse or the Haz? I can't remember, haven't had to pull it since I installed the new outdoor temp sensor

Well i tried the cig and replaced it, Still nothing,
Would you have another suggestion?
Desperately need it, been really cold here the last few days.
Thanks
Keith

Hello again, I have been through all fuses and they all seem to be in good working order. Would anyone have some suggestions as to what i could try next