Power Probe PP3 Benutzerhandbuch Seite 9

CHECKING FOR
(PPM)
Probe the suspected ground wire or contact with the probe tip Observe the
green negative sign " " LED. Depress the power switch forward then
release.
If the green negative sign "-" LED went Out and the red positive sign "+"
came on, this is not a true ground.
If the circuit breaker tripped, this circuit is more than likely a good ground
Keep in mind that high current components such as starter motors will also
trip the circuit breaker.
FOLLOWING
(PPM)
n most cases a short circuit wil appear by a fuse or a fusible link blowing
or an electrical protection device tripping (i.e., a circuit breaker). This is the
best place to begin the search
Remove the blown fuse from the fuse box. Use the Power Probe tip to
activate and energize each of the fuse contacts. The contact which trips
the PP3 circuit breaker
identifi cation code or color. Fol ow the wire as far as you can along the
wiring harness, for instance if you are fol owing a short in the brake light
circuit you may know that the wire must pass though the wiring harness at
the door sill Locate the color-coded wire in the harness and expose it.
Probe through the insulation with the Power Probe tip and depress the
power switch forward to activate and energize the wire If the Power Probe
circuit breaker tripped you have verifi ed the shorted wire Cut the wire and
energize
each end with the Power Probe tip. The wire end which trips the Power
Probe circuit breaker again is the shorted circuit and will lead you to the
shorted area. Follow the wire in the shorted direction and repeat this
process until the short is located
technique that guides you to the
short/open location
REDIGREEN
TONE
The "RED/GREEN Polarity Indicator" lights-up when the probe tip voltage
matches the battery voltage within ± 0.5 volts This means that if you
contact a circuit that is not a good ground or a good hot, you will see this
instantly by the "RED/GREEN
Tone runs parallel to the "REDIGREEN
NOT react when contacting a circuit that does not match the battery
voltage thin ± 0 5 volts
BAD GROUND
& LOCATING
is the shorted circuit.
ECT200 uses a wireless non-contact
POLARITY INDICATOR
Polarity Indicator" NOT lighting The Audio
Polarity Indicator and will also
8
CONTACTS
SHORT CIRCUITS
Take note Of this wire's
& AUDIO
8