BodybyFisher Posted March 30, 2008 Report Share Posted March 30, 2008 I took a trip to Philadelphia yesterday and coming back today I got a SES (service engine soon) light and the PC1611 code. I looked at a Delphi tech paper and found that this is related to the suspension. Since I have passive struts, isn't this a moot point? Anyone know what causes this code? Thanks, Mike Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Cadillac Jim Posted March 30, 2008 Report Share Posted March 30, 2008 P1611 Loss of CVRTD Serial Data CVRTD == Continuously Variable Real Time Damping. There is a module that controls your RSS and it has lost data to the IPM. Check the purple wire between the IPM and the RSS module. -- 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...
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