goodwrench55 Posted March 17, 2013 Report Share Posted March 17, 2013 I have recently installed a battery disconnect switch on my Sixty Special. The owners manual states that the computer must be reprogrammed after battery disconect. I did not know that this was a requirement and have been driving the vehicle without reprogramming. Am I doing any damage to any systems? What systems does this reprogramming affect? Link to comment Share on other sites More sharing options...
KHE Posted March 17, 2013 Report Share Posted March 17, 2013 I wouldn't worry about it - disconnecting the battery will reset the idle learn position but the car will re-learn it on its own. No damage will be done to the car. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
goodwrench55 Posted March 17, 2013 Author Report Share Posted March 17, 2013 KHE Thanks for the quick reply! Based on the procedure outlined in the OM I thought that maybe the climate control and or transmission shift points might be involved. I put the disconnect on because I drive this vehicle only once in a while and want a charged battery when I do want to go for a spin. I've read the posts about battery drain from infrequent use and thought the disconnect would be the way to eliminate that issue. Then I read about letting the car idle for 15 mins in park, then 3 mins in drive, and turning the climate control to auto etc. It kind of scared me. I've never seen that in an owners manual. This is my first experiance with Cadillacs and I don't want to screw this machine up. I really enjoy driving it and want it to last a long time. I note that you're from West Michigan. I am, too! Thanks neighbor! Link to comment Share on other sites More sharing options...
KHE Posted March 17, 2013 Report Share Posted March 17, 2013 You might want to use a battery tender instead of the disconnect switch - then your radio presets, clock, etc. won't need to be reset every time you use the car. Where in Michigan are you located? Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
goodwrench55 Posted March 17, 2013 Author Report Share Posted March 17, 2013 That's a good point. I intend to install a jumper wire that has a fuse in it to keep the radio alive. That may also keep the memory intact on the computer module eliminating the need to reprogram. I have waited on doing this step because I want to check the amp draw. My amp meter does not show any draw. The meter is pretty old and I believe it is defective. I should be seeing something. But all I get is zero. Also I want to be certain that there are no leaks in the suspension system. The compressor could be a drain when the car sits for an extended period. I'm waiting for some spring like weather so I can get some of this done. I have only had the car for a couple of months so we're still getting to know each other. I'm located in Fennville. Link to comment Share on other sites More sharing options...
waterzap Posted March 18, 2013 Report Share Posted March 18, 2013 When I do any electrical work on my cars, I always disconnect the battery. Never had any issues. Only issues I have had was when I forgot to disconnect the battery. Probably a good idea to always disconnect the battery if you do anything more than just an oil change. The car relearns very quickly. Only thing is the radio presets are gone. Not a big deal. Link to comment Share on other sites More sharing options...
Cadillac Jim Posted March 19, 2013 Report Share Posted March 19, 2013 The car remembers the settings of the radio buttons, just not where it was tuned when the battery was disconnected. Just punch the preset station button for your station when you get back in the car. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
Jimmy Sanders Posted June 4, 2013 Report Share Posted June 4, 2013 have a/c problems comp won!t come on every thing checks out except power to high pressure sw temp sensors are cheking out ok Link to comment Share on other sites More sharing options...
Cadillac Jim Posted June 4, 2013 Report Share Posted June 4, 2013 The first thing to ask is what, if any, messages do you get on the DIC. The next thing to do is to run the OBD codes, write them down, and post them here. That will tell the tale. See the link in my signature block for instructions on how to read your OBD codes using just your A/C buttons and the DIC. The OBD codes are necessary to know what the problem is. Probable causes are a fuse, a relay, low Freon, wiring harness or connector problems, etc. Less likely things include a clogged expansion valve or drier tank, etc. If we have the OBD codes, we can tell them apart. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
rockfangd Posted June 5, 2013 Report Share Posted June 5, 2013 one thing to remember is that when you reconnect the battery and start the car for the first time you must let the HVAC calibrate itself. It usually takes 1 minute and you should not touch anything related to it til it is done. I use a batery tender and it works wonderful. Serves 2 purposes. Keeps the battery charged and no need to disconnect the battery GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
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