I have had my 2000 deville into two differant mechanics and the problem still is not solved, time to roll up my sleaves. The dash codes are ABS C1295 history ( ABS ID 4714 ) and IPM BO 429 current ( IMP ID 7856 ). Anyone have an answer?

 

two different codes all together. i would be checking my brake lights and first make sure all the bulbs are the same and that they work for code c1295

 

Thank you gmtechs, the problem turned out to be wires in the drivers side truck hing which had pinched, pulled a part, shorting out and sent odd signals back through the brake light switch.

 

Checked brake and turn signal lamps, all are LED. I'm trying to find out where all the computor moduals are located to check connections for corrosion or bad wires, I'm planning to clean and lube with electrical grease.

 

Did touch ever figure it out? I have led's too and have the same problem.