ABS lights on

Question

I had the ABS unit replaced with a reconditioned one after all brakes failed, I have brakes now but ABS lights still on

Fault codes C1254 , C1223, C1336 the latter resets

Answer 1

C1336 Zero point calibration

C1223 ABS control system malfunction

C1254 Pressure switch circuit

When you changed the ABS unit and a zero point calibration was not performed you can expect this code, C1336. As for C1254  the is the hydraulic brake booster assembly, But if you have brakes working then it electrical with there is either a open circuit or short from pressure switch to the skid control ECU