2000 Cadillac DeVille, B1009 Anti Theft Warning Message and Security Light On

This 2000 Cadillac Deville came in with the complaint that the anti theft system lights and messages were on but the vehicle always cranked up just fine. Of course when the vehicle was dropped off at my shop all of the lights were out and everything was normal.   I did a code check and … Continue reading “2000 Cadillac DeVille, B1009 Anti Theft Warning Message and Security Light On”