1) Check Speedometer Operation
Ensure speedometer operates properly. If speedometer operates properly, go to next step. VSS is located on transmission rear extension. If speedometer does not operate properly, remove VSS from transmission. Turn speedometer pinion quickly. Measure voltage between terminals "a" and "b" at VSS connector. If voltage is approximately .5 volt and alternating, go to next step. If voltage is not as specified, replace VSS.