I have a EB Fairmont and I ran the diagnostics/calibration on the climate control this morning and it came up with the error code E3 could someone please tell me what this error code means.

thanks in advance.

E3 cabin sensor. Visit the tech doco's on this site and look at the doc on climate control diagnostics. Should give you all you need.
Cheers

Thanks for that.

I have had a read of the tech doco and that is pretty good, seems that I have a problem with the cabin sensor. Next question is can some point me in the right direction to find it?

Around the area of demister switch and trip comp on the dash there should be a small set og slots where air from the cabin can get to the sensor behind. This is also known as the sniffer motor. Check wiring to this unit. To get this panel out u must remove the plastic panel around the cluster first.u should see 2 screws 2 the left of the aircon unit also 2 screws just above the radio. Take the radio panel out first then break your neck to look up underneath to see them. One more screw in the little open change holder left of trip comp again look fron below to see it. Once all these are out the panel should pull out and u can get at everything.
Hope this helps.. cheers