ELECTRICAL TROUBLESHOOTING TOOLS
Jumper wire
·A jumper wire is used to create a temporary
circuit. Connect the jumper wire between the
terminals of a circuit to bypass a switch.
Caution
·Do not connect a jumper wire from the
power source line to a body ground. This
wiring harnesses or electronic
components.
Voltmeter
·The DC voltmeter is used to measure circuit
voltage. A voltmeter with a range of 15V or more
is used by connecting the positive (+) probe (red
lead wire) to the point where voltage will be
measured and the negative (-) probe (black lead
wire) to a body ground.
Ohmmeter
·The ohmmeter is used to measure the resistance
between two points in a circuit and to inspect for
continuity and short circuits.
Caution
·Do not connect the ohmmeter to any
circuit where voltage is applied. This will
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damage the ohmmeter.