sesenter Posted January 27, 2008 Report Share Posted January 27, 2008 1996 Eldorado Car would start Theft system problem. Ran codes Ip1552, IP2710,IP2750,PZ1558. Did the whole disconnect battery thing. Cleaned the resistor and the contacts in the ingition. Any ideas? Link to comment Share on other sites More sharing options...
Cadillac Jim Posted January 28, 2008 Report Share Posted January 28, 2008 B1552 Keep Alive Memory (KAM) Error B2710 PASSKey Open/Shorted Pellet B2750 PASSKey Data Communication Failure B1558 BCM EPROM Checksum Error The B2710 can happen when you have a piece of lint on the key that keeps the cylinder from reading the resistor, but that usually comes with a B2711, B2780, or B2781. You have a countdown of three minutes before the PCM will let you start the car. The B1552 is caused by disconnecting the battery to clear the codes. A better way is to clear them from the DIC; the instructions for doing this are included in http://www.caddyinfo.com/readingcodes.html The B2750 may mean that the IPM and the BCM aren't talking to each other over the Class 2 network, which is disturbing, or that there is a problem with one or the other. The B1558 may mean a problem with the BCM, or it might possibly have been set when you disconnected the battery. I would clear the codes from the DIC and try again; that may clear codes that don't clear when the battery is disconnected, and it won't set any codes in itself. -- 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...
sesenter Posted January 28, 2008 Author Report Share Posted January 28, 2008 1996 Eldorado Car would start Theft system problem. Ran codes Ip1552, IP2710,IP2750,PZ1558. Did the whole disconnect battery thing. Cleaned the resistor and the contacts in the ingition. Any ideas? How do I get to start the countdown? Link to comment Share on other sites More sharing options...
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