2. If the needle doesn't move, the circuits are not shorted.
3. If the needle jumps or flickers, the circuits are occasionally shorted.
(4) Testing Resistance. To measure resistance in a circuit, do the following steps:
(a) Set up and "zero" the multimeter (fig. 4-2).
Failure to do the following steps can damage the multimeter.
(b) Disconnect the circuit being tested.
(c) If the test in this manual calls for an "ohms range" different than "RX1" or X1", set the selector switch
to that range (such as "RX10" or "X10").
"Zero" the meter whenever you change range.
(d) With all three multimeters, connect the probes across the circuit or item to be measured. The
example (fig. 4-5) shows measuring the resistance of a temperature sending unit.
Figure 4-5. Testing Resistance