Hi, my ABS and VSA lights came on a couple of months ago while driving and the dealer has been unable to figure it out. The car throws a DTC 33-1, which points to a front left inlet solenoid valve failure in the ABS module, but swapping the whole unit out for a brand new one didn't resolve anything. The dealer is scratching his head. For a car that's never had any problems, it doesn't make sense, at least that's what they're telling me. At this point, all the dealer can think of is maybe a bad wire/wiring harness somewhere. Can anyone suggest a course of action? I'm already into them for several hundred dollars of labor and, with no clear way to diagnose the problem, I need to decide when enough is enough. By the way, the car was purchased in 2002, has 96k miles, and has been well maintained. Thanks.

 

wheel speed sensor lead damaged? bad wire connector etc

those are pretty easy to damage when doing a brake job carelessly