QuestionI sent my car to the shop recently to have a CAM shaft sensor replaced and to fix a blown circuit. When I got the car back, a few days later, my ABS light turned on. It started out coming and going, maybe turning on for a few minutes. I found that when I pressed the brake hard and suddenly, the light would turn on. In the last 2 weeks, it's been on all the time.
I figure it's a wiring problem, or a problem with the brake sensor. I got codes from the abs diagnostic that told me the rear valve and rear wheel speed sensors aren't working. Is there a circuit under the dashboard that is in series with those?
AnswerI have a Cutlass, and my light was on for a while.
Cruise also quit working.
I heard all kinds of stuff about wheel sensors, but to make a long story short, I found the stoplight in the back window wasn't working.
The bulbs were blown. replaced them, and that fixed everything.
I even took them back out to verify it, and sure enough, that was all it was.
There is a stoplight switch on the brake pedal that could also be out of adjustment.
You might want to mention it to the shop, though. They may have bumped something while working on it.
Van
