The chassis manual has no pin out or easily readable description for the ignition switch in the electrical diagram. Is there another source for this information, or can anyone tell me what color wires do what and how they connect when the key is moved. I am having a problem with the ACC position not working. It had functioned prior to having the column rebuilt, so something went wrong along the way. The switch was also replaced during the process..Thanks

I bought the service manual set from Helms Publications
(avaliable online) and the electrical book is great,
color codes,wire size,pin numbers,etc.Each circuit system
is broken down,in color,so you can actually figure things out! My 78 manual probably won't help you with a 72 but get your own set. Well worth the money-you will
find these manuals to be invaluable!
Steve

I have the factory diagram for the 72. Send me your address and I will send a copy to you.