Part 3 of 4

System Troubleshooting Procedures:

Continuity Test

To perform a continuity test, first disconnect the car battery.
Then, while holding the leads together, adjust the ohmmeter to
read zero. Connect the ohmmeter leads to connector or terminals
at either end of the circuits suspected problem area. The ohmmeter
will show the resistance across that part of the circuit. This
test can also be performed with a self-powered test light.


Short Test Using Voltmeter

To locate a wiring short to ground, remove the blown fuse and
disconnect the load. Connect the voltmeter leads to the fuse terminals.
The positive lead should be connected to the terminal closest to the
power source.

Starting near the FRONT POWER DISTRIBUTION BOX, move the wire harness
back and forth and watch the voltmeter reading. If the voltmeter registers
a reading, there is a short to ground in the wiring. Somewhere in the
area of the harness being moved, the wire insulation is worn away and
the circuit is grounding.