Spectra5 L4-2.0L (2005)
4
TESTING FOR A SHORT WITH A SHORT FINDER
A. Remove the blown fuse. Leave the battery connected.
B. Connect the short finder across the fuse terminals.
C. Close all switches in series in the circuit that is being testing.
D. Turn on the short circuit locator. It sends pulses of current to the short.
This creates a pulsing magnetic field around the wiring between the fuse box and the short.
E. Beginning at the fuse box, slowly move the short tinder along the circuit wiring. The meter will show current pulses through sheet metal and
body trim. As long as the meter is between the fuse and the short, the needle will move with each current pulse. Once the meter is moved past
the point of the short, the needle will stop moving. Check around this area to locate the cause of the short circuit.
5. TESTING FOR VOLTAGE DROP
This test checks for voltage drop along a wire or through a connection or switch.
A. Connect the positive lead of a voltmeter to the end of the wire (or to the side of the connector or switch) closest to the battery.
B. Connect the negative lead to the other end of the wire. (or the other side of the connector or switch)
C. Operate the circuit.
D. The voltmeter will show the difference in voltage between the two points. A difference, or drop of more than 0.5 volts may indicate a problem.
