GM 3400 V6 Camshaft Position Sensor Hall Effect Bypass Test
The main purpose of this type of testing is for accuracy and speed in verifying that no opens or shorts exist in the cam sensor signal wire.
The procedure shown in this video can be applied to any pull-up design hall effect signal circuit.

Engine Performance Diagnostics Chapter 21 pages 26-28

Other names

  • hall effect bypass test
  • switch input bypass test
  • pull up design hall effect bypass test

Tools used

  • Scan tool
  • Incandescent test light

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(Chapter 21) Ignition inputs, cam and crank

Related videos:

Nissan-Infinity no start, no spark (hall effect crank sensor test):


How to test an igniter on a Toyota/Lexus:


Jeep 4.7 no start from faulty cam sensor (ScannerDanner Premium lecture):

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For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available as an eBook or paper book.

Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium. There is a 14 day free trial.

On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!