The basic electrical course run here at GotBoost has a section dedicated to current flow or wiring diagrams.
It can help technicians with the diagnostic process, where to test is a good example, or what components share grounds or supply voltages.
They are also vital for understanding circuit control methods and predicting results.
However the number of technicians who find them difficult to read/follow always surprises me.
Is it because you haven’t been taught?
Or you don’t know what information is available on current flow diagrams?
Or you need to refresh your skill set in this area.
We are running a course over 2 evenings here in February use the contact form to find out more.