Everything works as it should. Turn on inmediately, drives and shift, no dead battery issues, pretty much everything works as it should but the speedometer and odometer. 3 amigos are on ( previous owner converted to rear coil springs) and don't believe that issue was ever dealt with in the computer. Can some one tell me where is the speed sensor and perhaps what may be the problem. Thanks.........

 

D2 computes an average from sensors on all four wheels. If fault occurs at One if these sensors, 3a appears. So could be related. Or could be a communication breakdown at computer.

Real time scanner giving you a matching number to the dash?