A defective vehicle speed sensor can cause problems with the cruise control and speedometer operation, as well as erratic shifting. The connectors on the sensors are also susceptible to corrosion, which will create similar symptoms. Any of these problems can cause Check Engine Light illumination.Google+
Car Problem Reports
Dodge Avenger Check Engine Light Due to Speed Sensor Issue
Dodge Avenger Problem
Average Mileage: 113,422 mi (17,000 mi - 176,956 mi)
Visitor, 1997 Dodge Avenger, 75,000 mi
my 97 dodge avenger has problems shifting from 2nd to 3rd gear and the check engine light comes on and off. obd2 computer check say something about speed turbine sensor. if anyone has any thing to offer on how to solve this problem i am all ears
Visitor, 1995 Dodge Avenger, 155,000 mi
Speedometer, odometer, and trip meter don't work, but the remainder of the cluster does.
Visitor, 1996 Dodge Avenger, 176,956 mi
speedometer works part of the time.. Cruise doesnt worki, tranny has shifting problems...