Jmoss Posted July 23, 2019 Report Share Posted July 23, 2019 (edited) My rear air compressor. Not sure why it won't come on. I change the 30amp fuse and the relay. What can I do next? Edited July 23, 2019 by Jmoss Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted July 24, 2019 Report Share Posted July 24, 2019 It would help if you could pull the DTC codes from the computer. If you dont have a code reader with CAN, some parts suppliers like Autozone will pull your codes. Write them down and post them here. Has the vehicle been through deep water? Quote 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...
Jmoss Posted July 24, 2019 Author Report Share Posted July 24, 2019 No. I'll hit up autozone and what they say. Thanks. BodybyFisher 1 Quote Link to comment Share on other sites More sharing options...
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