speedometer jumps all over the place. i replaced the vss on side of transmission , and the trans axle sensor for speedometer. i also replaced the transmission range selector and the speedometer head in the dash. speedometer will read from 10 mph to 130 mph while it is park or driving. when i plug in a scanner to read the speed. it is correct while in park or driving on the scanner. i was wondering if it is the Instrument interface monitor that is bad. if so where is it located?
Nov 20, 2015 at 7:45 AM