1999 Cadillac Deville LIGHTS ON DASH ABS AND TRACTION CONTR

The tcs C1234 is the one to be addressed for your complaint. It is for LR wheel speed sensor open or shorted. My guess is that the sensor is disconnected after the brake service. It is fairly easy to do, especially if your removing caliper bracket bolts to get rotors off. The B1147/48 are right and left side airbag faults, if you have no SIR light-disregard, and the P0603 is ECM memory reset. It is typical if the battery has been discharged or disconnected, no cause for alarm either. It turns on no lights.

Left relates to drivers side. If you push and hold off and warmer on the climate panel together, you will enter segment check, followed by code display. You can bypass all codes by pushing fan up. Press fan down until you reach abs and then fan up. You will then be able to select abs codes/abs clear codes by pressing fan down. Fan up to execute, and recirc button will exit diagnostics.