I'm reading the FSM page 28/54.HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT. Continuity Check Method
1) Disconnect the battery negative cable.
2) Start at one end of the circuit and work your way to the other
end. (At the fuse block in this example)
3) Connect one probe of the DMM to the fuse block terminal on
the load side. (CONFUSED HERE THE FUSE BLOCK) ITS UNDER THE DASHBOARD I BELIEVE CAN SOMEONE EXPLAIN IT A LITTLE EASIER TO UNDERSTAND PLEASE )
4) Connect the other probe to the fuse block (power) side of SW1.
Little or no resistance will indicate that portion of the circuit has
good continuity. If there were an open in the circuit, the DMM
would indicate an over limit or infinite resistance condition.
(point A)
5) Connect the probes between SW1 and the relay. Little or no
resistance will indicate that portion of the circuit has good continuity.
If there were an open in the circuit, the DMM would
indicate an over limit or infinite resistance condition. (point B)
6) Connect the probes between the relay and the solenoid. Little
or no resistance will indicate that portion of the circuit has good
continuity. If there were an open in the circuit, the DMM would
indicate an over limit or infinite resistance condition. (point C)

 

What that step is telling you to Do, is Put One Lead of the Digital Multi meter (+) on the load side of the circuit. Meaning what ever you are testing,Its Powers feed .. think of a fuse, One side is power in and one side is power out as its passed over the fuse. simply put.. What its having you test is for and Open in the harness ( a broken Wire) if you have resistance from point A to B than then wire is Fine. Its when your correctly connected on both ends and The DMM shows Nothing is the Concern.