crippin123456 Posted March 15, 2012 Report Share Posted March 15, 2012 In getting code pco231.low fuel pump voltage.I've been hearing that ecm fuse omight be the problem being ecm code reflects it.how easy it is to remove Link to comment Share on other sites More sharing options...
Cadillac Jim Posted March 15, 2012 Report Share Posted March 15, 2012 If the PCM fuse was bad, you would be getting a lot of codes, and probably a stalling or even no-start condition. You have one code, chase it down first. -- 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...
crippin123456 Posted March 15, 2012 Author Report Share Posted March 15, 2012 If the PCM fuse was bad, you would be getting a lot of codes, and probably a stalling or even no-start condition. You have one code, chase it down first. pcm fuse was fine but i replaced it anyway because of corrosion on it.im getting 5-6 other codes but there all minor.they have nothing to do with the car starting.but i am trying to find ecm fuse to check it.the only fuse that was blown was ecs fuse. Link to comment Share on other sites More sharing options...
Cadillac Jim Posted March 16, 2012 Report Share Posted March 16, 2012 The PCM is the ECM; it's just a terminology thing. Some early OBD I codes called it an Engine Control Module, but after the transmission control was thrown in it became the Powertrain Control 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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