Forum Discussion
jus2shy
Apr 15, 2015Explorer
Ductape wrote:
One thing that can always be counted on with this forum is as soon as anyone says "left" someone else will post "right". Ordinarily I ignore it, but just in case any readers care about the facts:
Part # 68231044AA is the rear wheel speed sensor for a 2014 Ram 1500; it uses 2. One for the left wheel and one for the right...
So I can ask why you don't know this? Can you show us the part number for the sensor you believe is in the diff?
Just because something was true in older vehicles does not make it true now.
Just to build on this, there should be a tone-ring at every corner (looks almost like a bicycle sprocket). There is a magnetic sensor that uses the hall effect to figure out how many teeth are passing the sensor over a certain amount of time. The computer needs a signal from all 4 tone rings to figure out how to distribute the ABS system. That's how the system knows when you lock up a wheel and it actuates only that specific brake. There is tolerance built into the calibrations of all 4 sensors as tires wear unevenly and turning causes differentials in speed. Modern cars also factor steering angle into their ABS needs calculation.
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