2005 Ram Cummins 2500

Not to long ago ABS light came on, read the code front right speed sensor. Replaced sensor and light turned off. When braking got the pulsing in the break pedal, bought another sensor and same thing.

No ABS light, had a buddy read it with his computer and seems like the speed sensors all working.

Anybody have any ideas whats going on? Thanks

 

What are the sensors telling the pcm when you apply the brakes? Are they all within a few MPH of each other?

 

Most of the time they were all the same and then one would show way off from the other two, then a different one would be way off.

 

Then you have an electrical problem somewhere. Either that, or the controller itself is bad.....

 

what are the possibleelectrical problems?

 

Intermittent connection at one of the sensors. (the once that can't make up it's mind how fast your are actually going.) Maybe a bad sensor. Bad wiring between sensor and module. Or, just a bad module.