Hi,
Basically, when you check continuity, you are checking Ohms on the multi meter. In essence, you are confirming that power from the MM can flow in one end of the wire and out the other. In addition, checking for power is just that. You need to see if power is available. Here is a link that explains how to use a volt meter/multi meter:
https://www.2carpros.com/articles/how-to-use-a-voltmeter
https://www.2carpros.com/articles/how-to-check-wiring
I attached the wiring schematic I have for the cam sensor. I placed a small red dot at the end of each wire that you are checking. Note that the schematic indicates what each wire is for, ground (low reference), power, and signal.
To check for a signal, you will need a helper to crank the engine.
Have you already replaced the cam sensor?
Let me know if this helps you.
Joe
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Tuesday, December 10th, 2019 AT 4:51 PM