Hey people we're kinda stumped on this one. We have a 2003 Cadillac Deville in our shop It's setting codes, C1243-c1254-c1290 for the abs. p1571-u1040 for the pcm. u1000-p1571 for the bcm. The customer states the airbag light was on, the radio and air conditio... Login to read more.