when you say "all fuses OK" are you removing (electrically isolating) the fuses prior to testing? or are we testing looking for a voltage drop?
is their a point that all the circuits return to a common negative connection (where does the negative battery cable connect?)
under what conditions do you have "no power to the bypass contactor" and how and why are you testing that?
if you have no hydraulic power, steering or drive, why did you title this thread about the bypass contactor?
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