Cadillac Repair: 1989 seville electronic climate control problem, electronic climate control, climate control unit

Question
QUESTION: I have an 89 seville that intermittently displays a "c" on the control module for the fuel and the electronic climate control, then there is a clicking sound in the relays under the dash on the passenger side and the normal temperature and fuel display is given for a few seconds?minutes and then the relay clicks and the "c" reappears in the ecc and fuel. Also the service engine soon light is on and the heater fan and radiator fans run constantly when the "c" is being displayed.  Any suggestions?

ANSWER: Replace the BCM (Body Control Module) computer.

If you need directions on how to replace it, E-mail: onlineautohelp@msn.com

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QUESTION: where is the body control module located and should the electronic climate control unit as well as the electronic control module be replaced at the same timeit is replaced?

Answer
NO. You will need, If necessary, Electrical schematics and picture locations of the components within the system that is causing you problems of which can't be done on this website which only allows one picture.  I do not have a website so you will have to e-mail: onlineautohelp@msn.com in order to obtain the information.

The biggest help for me to help you would be if you could take video of your problem and e-mail it to me.