Haynes shop manual

Does any one know if the Haynes manual has any reference to the AC electrical circuits in the wiring diagrams. I have a Chilton manual but it shows nothing at all about the air conditioning control circuits and I have to trace a fault in this system.

Any information will help, thanks.

My book for the 98 century does. I can only assume they are complete.

Thanks public, I'll buy one for the Regal and see if I can track down the cause of my problem.