Good info! Thank you. If you can send me any pics/diagrams to my djperuski at comcast.net I would appreciate it. Been getting a lot of spam lately, so I have not been posting the email as a link.
The alternator is as shiny as can be, they replaced the positive lead harness, and there is steam coming off of the radiator, so I assume they did the job, just maybe not correctly or it was mis-diagnosed.
The car is sitting at the dealer now, otherwise I would be looking for that 5 volt signal right now. I wonder why that exists? Possibly in case the alternator/regulator is producing too much voltage?
Thank you again,
Don