so driving to ork the other day, i passed a cop and looked down to see my speed and there was nothing. the speedo doesnt work and also the trip and odom are working either. ive got a 94 xe with power options. i pulled the cluster apart tonight and founs out it is all elect. so my question is, is there a sensor or sumthing in the tranny to need to replace or should i run the codes or what?