Trouble with a 94 Grand Prix SE 3.1L... ABS and Brake light are on. My brother took it to Midas where they got the codes:
27 Excessive LR wheel acceleration
28 Excessive RR wheel acceleration
42 Rear ESB does not hold motor
51 Rear axle nut fail
They're talking about replacing the ABS module, pretty expensive. Guess that's the only way to go? Coming to that conclusion from the codes?
Any help appreciated.