I have a chevrolet Impala 3.8 lt 2005 ABS c1221, c1225,c1232 and c1245 is this a shot circuit

Question

Are these all to ground or a bering

Answer 1

C1221 Left front wheel speed sensor

C1225 Left front  excessive wheel speed sensor variation

C1232 Left front wheel speed sensor circuit open or shorted

C1245 Tire pressure

Everything is pointing to the left front wheel, Since the ABS sensor is part of the wheel bearing even if it is the wheel bearing the ABS sensor is replaced with it. its one unit. I does not hurt to check, and also have the tire pressure ensuring you have the correct tire size

 The ABS sensor is part of the wheel bearing