pnkmcneil Posted December 16, 2010 Report Share Posted December 16, 2010 What do DTCs U1000 and B0429 refer to? Link to comment Share on other sites More sharing options...
Cadillac Jim Posted December 16, 2010 Report Share Posted December 16, 2010 U1000 Class 2 Communication Malfunction B0429 Temperature Control #3 Rear Circuit Range/Performance The U1000 is a network error. If it's a History code and you have no other complaints, it can probably be safely ignored. The B0429 has to do with the rear seat temperature door in the A/C. -- 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...
Ranger Posted December 16, 2010 Report Share Posted December 16, 2010 You can find your DTC definitions here. http://myweb.accessus.net/~090/dtcobd2.html Link to comment Share on other sites More sharing options...
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