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Discussion Starter · #1 ·
I am having the most difficult time finding any information on how to test the harness/wires that connect to my VSS plug. There's hundreds of things about testing the sensor but there's absolutely nothing about testing the plug or harness. I just bought a brand new VSS sensor so I'm pretty sure it's not my sensor. Btw my truck has the two wire magnetic not a 3 wire.
My od light keeps throwing tyranny codes and when is use the obd2 it identifies a code for the vss sensor
 

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Testing the wiring to the VSS involves finding the other end of the wire and testing for continuity with a multimeter or self-powered test light from end to end. Not knowing either truck model or year, I can't advise where to look for the end of the circuit up front.
The other thing is to check the harness under the truck for rock hits, which may break the wiring. Should be fairly easy to recognize where that might happen.
 
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