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Cadillac Repair/1995 Cadlliac Deville 4.9

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Question
I am having a issue with the climate controls. At first everything is great but after a moment the left and right side of the digital dash goes to dashes, and the defrost is stuck on high. I Installed a rebuilt ECM/PCM with no change at all.
I retrieved the following code from the climate control ( note the ECM/PCM will connect with my OTC scanner )


NO PCM DATA
CODE IO32 CURRENT ( Loss of ABS/TCS Data )
CODE IO34 CURRENT ( Loss of Powertrain Control Module Data )
CODE IO37 CURRENT ( Loss of Air Conditioning Programmer Data )
CODE IO39 CURRENT ( Loss of Road Sensing Suspension Data )
CODE IO52 HISTORY ( Keep Alive Memory Error )
NO ACP ( Air Conditioning Programmer )
NO SIR ( Not sure what this is )
NO TCS ( Traction control I believe )
PCM? ( Worried about this one )

Please Advise

Answer
If you are mechanicaly inclined or know of someone who is, You will need a DIGITAL VOLT/OHM METER, Simple electrical schematics, Test procedures 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 necessary to fix your vehicle.


HAD you e-mailed the person I told you to do, He would have told you to check that FIRST and it would have cost you NOTHING. Now your out $100.00.

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On hands professional expertise in all aspects of Cadillac diagnostics and repair mid 1970`s thru 2000 year vehicles. GM certified in electronic fuel injection, Automatic transmission, Heating and A/C, and onboard vehicle computer diagnostics.

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Held over 15 GM certifications prior to retirement in 1989.

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Prior to retirement held several ASE certifications, numerous Factory certifications.

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