ELECTRICAL
8.9
Multimeter Usage
: = Ohms, resistance - measuring component resistance values - testing coils, wiring, etc.
Used to test resistance to the flow of electricity in a circuit or
component. A reading of OL means an open circuit or infinite
resistance. Sometimes the leads themselves will have some
resistance. Touch the leads together and subtract this resis-
tance from the component reading to achieve the actual
reading.
Tes t
Method
1. Connect black lead to Com (--) meter terminal
2. Connect red lead to V
: (+) meter terminal.
3. Turn selector dial to : setting.
4. Isolate test component from the rest of the electrical
circuit by disconnecting wires from harness.
5. Connect test leads to the circuit to be tested.
Usage
S Testing coil resistance
S Testing switch operation
S Testing wire continuity
A= Amps AC - used to test lighting coil output
Used to test the power of an alternator coil.
Tes t
Method
1. Connect black lead to Com (--) meter terminal
2. Connect red lead to 10A (+) meter terminal.
3. Disconnect engine harness from system.
4. Connect across the specified coil wires.
5. Start engine and let it idle.
6. Readings should be above 5 Amps at any RPM. NOTE:
It is not necessary to increase RPM. The reading can be
obtained at idle.
Usage
S Testing stator coil power output.
+
_
00.2 :
:
+
_
14.00
A
AC
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