I have a 04 Cadillac deville and the check engine light is on after servicing all the codes and even tried replacing censor. Why will it keep coming on even after resetting the system?

Anthony Sherrow

Asked by Sep 17, 2014 at 11:26 AM

Question type: Maintenance & Repair

2 Answers


Have it scanned yet again, to see if something new has been detected or one of the 'fixes' didn't work. What codes did you get? If it's a long list, forget it, can't do through a dozen

Anthony Sherrow

Had it rescanned and same codes keep showing up. 2 emissions and 1 transmission

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