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International Automotive Technicians Network
Re: Intermittent water pump
Posted to Technical Discussion Forum on 1/3/2020

I would use wire pierce end leads on the harness wires and a scope to monitor what the circuit is doing. I seldom recommend doing this, but if you do, make sure you apply liquid tape to the test punctures. Like you said, back probing may give you a "false goo... Login to read more.