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.
For more on pull-up and pull-down signal circuits, refer to Section 2 in my book.
Other names for this type of testing:
- hall effect bypass test
- switch input bypass test
- pull up design hall effect bypass test
- Scan Tool
- Incandescent test light
GM 3400 V6 Camshaft Position Sensor Hall Effect Bypass Test.
Infinity Q45 crank sensor bypass test https://youtu.be/Ht12mWdrNbU
Lexus Igniter bypass test https://youtu.be/VG3EZJlyjl8
How to test a cam sensor circuit - a free ScannerDanner Premium video (week 2 part 10) https://youtu.be/kRnq8uuUGOg
(Chapter 2) Switch Inputs, digital signals, module communication, hall effect testing
(Chapter 21) Ignition inputs, cam and crank
For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book.
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