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operating instructions and Parts manual
ConduCtivity test
The technician can test the conductivity between wires
or components which have been disconnected from
the vehicle's electrical system. If the current is con-
ductible between wires or components, the green LED
should be on.
ACtivAtinG ComPonents WitH tHe Automo-
tive eLeCtriCAL system disConneCted
The technician can activate and test components
which have been disconnected from the automotive
electrical system. This function can be used to test
lamps, cooling fans, fuel pumps, etc. To do this, please
follow the procedure:
1. Connect the ground test lead to the negative pole of
the components.
2. Contact its tip to the positive pole of the compo-
nent. If the green LED is on, it means the testing
component is conductible.
3. As the green LED goes on, press the polarity switch
forward and then release it quickly. If the LED goes
from green to red, you may proceed with further
testing. If the green LED turns off and red LED
doesn't turns on, or if the circuit breaker of the short
circuit protection tripped, it means it has overload-
ed. This may be due to the following reasons:
• The component is short circuited or it has
been connected to the ground/ negative
pole directly.
• The component
is a high current
component.
if the circuit breaker of the short circuit pro-
tection has been tripped, it will reset within 60
seconds.
Auto CirCuit tester
ACtivAte ComPonents WitH Positive
voLtAGe onLy
The technician can use this unit to provide positive
voltage to test the components. To do this, follow this
procedure:
1. Contact the tip to the positive pole of the compo-
nents. If the green LED is on, it means the testing
component is conductible.
2. As the green LED goes on, please press the polarity
switch forward and then release it quickly. If the LED
goes from green to red, you may proceed with fur-
ther testing. If the green LED turns off and red LED
doesn't turn on, or if the circuit breaker of the short
circuit protection is tripped, it means it has over-
loaded. This may be due to the following reasons:
• The component is short circuited or it has
• The component is a high current component.
If the circuit breaker of the short circuit protection has
tripped, it will reset within 60 seconds.
imPortAnt
Please operate this function using a schematic and
correct testing procedures because applying voltage
arbitrarily may cause damage to components.
important:
When applying current to the components, please
push the switch before contacting the tip with the
components. In this case, any arcing will take place
between the tip and the component instead of inside
the switch, increasing the life of the switch.
Press polarity
switch forward
5
been connected to the ground/
negative pole directly.
24366
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