Yungd145 Posted March 11, 2011 Report Share Posted March 11, 2011 I need to know what the trouble codes on my dash is reading! It starts with P030 P052 I052 A037 no sir codes T033 PCM? The car runs and drives good just have a slight performance drop and gas mileage went from 18mpg city to 12.7 even on hwy!! Acceleration isn't like it use to be and also check engine light comes on until I shut the car Link to comment Share on other sites More sharing options...
Göran W Posted March 11, 2011 Report Share Posted March 11, 2011 http://myweb.accessus.net/~090/dtcobd1.html PCM? is just asking tf you want to enter PCM. Link to comment Share on other sites More sharing options...
Cadillac Jim Posted March 11, 2011 Report Share Posted March 11, 2011 The only one of any consequence is T033 RR Wheel Speed Sensor Continuity Fault This is probably the connector off the sensor on the right rear wheel. This sensor is in the center of the hub on the inside. -- 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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