tom poteat Posted May 4, 2011 Report Share Posted May 4, 2011 I have "service engine soon" light. Have 2003 codes from this site, reset did not make lamp extinguish. Anyone have 2002 c0des? Link to comment Share on other sites More sharing options...
JimD Posted May 4, 2011 Report Share Posted May 4, 2011 The numbers and meaning of codes does not change dramatically from year to year. Tell us your "P" codes. Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
Cadillac Jim Posted May 4, 2011 Report Share Posted May 4, 2011 Resetting a code that turns on the MIL doesn't fix the condition nor will it let your car pass emissions testing. If the code is CURRENT, the problem that is detected is ongoing, or has been detected since you last started the car. Most OBD codes on older cars are due to simple things like an old air cleaner, a vacuum leak, or a connector off a sensor. Run your codes and post them here and we can probably help you find a *real* solution to the MIL turning on. -- 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...
tom poteat Posted May 4, 2011 Author Report Share Posted May 4, 2011 I have "service engine soon" light. Have 2003 codes from this site, reset did not make lamp extinguish. Anyone have 2002 c0des? Link to comment Share on other sites More sharing options...
tom poteat Posted May 4, 2011 Author Report Share Posted May 4, 2011 Thanks, JimD, for response. Code P0385 is what I have. Didn't find it in the '03 listing I viewed. Dr. Tom. Link to comment Share on other sites More sharing options...
JimD Posted May 5, 2011 Report Share Posted May 5, 2011 P0385 - Crankshaft Position (CKP) Sensor B Circuit A common enough failure in certain years of Northstar engines (GM changed parts vendors for later years). The recommendation is to replace BOTH cranksaft position sensors when one of them fails. FWIW the attached file has not failed to identify any OBDII code that I have seen reported. Download the file and find a place for it on your computer. When opened with NotePad, the file is searchable. 96+ OBDII GM DTCs.txt Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
Cadillac Jim Posted May 5, 2011 Report Share Posted May 5, 2011 Look at my avatar and signature photos. They were taken with a Canon T-90 (circa 1986) on Kodacolor Gold 100 using old Canon manual focus lenses. -- 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...
tom poteat Posted May 5, 2011 Author Report Share Posted May 5, 2011 P0385 - Crankshaft Position (CKP) Sensor B Circuit A common enogh failure in certain years of Northstar engines (GM changed parts vendors for later years). The recommendation is to replace BOTH cranksaft position sensors when one of them fails. FWIW the attached file has not failed to identify any OBDII code that I have seen reported. Download the file and find a place for it on your computer. When opened with NotePad, the file is searchable. Link to comment Share on other sites More sharing options...
tom poteat Posted May 5, 2011 Author Report Share Posted May 5, 2011 I have saved the file. Thanks for your help. Now I will shop for crankshaft position sensors. dr. tom Link to comment Share on other sites More sharing options...
CoupeDTS Posted May 5, 2011 Report Share Posted May 5, 2011 I have saved the file. Thanks for your help. Now I will shop for crankshaft position sensors. dr. tom dont buy ones made in mexico. Japan is fine. Dealership and standard brand are good ones I know, not sure of other brands. * 1966 Deville Convertible * 2007 Escalade ESV Black on Black * 1996 Fleetwood Brougham Black on Black V4P -Gone* 1983 Coupe Deville Street/Show Lowrider -Gone* 1970 Calais 4dr Hardtop GONE* 2000 Deville DTS - Silver with Black Leather and SE grille GONE* 1999 Seville STS - Pearl Red GONE Link to comment Share on other sites More sharing options...
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