Some time ago, speedometer (analog needle type) became very erratic then quit altogether. Speed sensor has 6 wires; 400 yellow

401 purple

These come from speed sensor; checked with scope and have an ac sine wave.

151 black -- ground w/ no voltage drop

pin...

FIX posted 5/2/1998

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle