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The voltage drop test allows you to measure the voltage drop across both the positive and negative cables
running from the battery to the starter and alternator or any other device within your vehicle. This test can be
used to determine if the cables or connections are the cause of any problems.
Select the V DROP Test from
the main menu.
Select Starting Cable Test.
VOLTAGE DROP TEST (Starter Cable Test)
The screen will show you
where to make your connections.
The large clamps need to be
connected to the starter terminals
The red clamp to the starter
positive terminal, black to the
starter ground. The small clamps
need to be connected to the battery
posts. The small red clamp to the
battery +, the small black clamp to
the battery.
Test in process, please wait.
To set the test current, press the
Test current box and a numeric
keypad will appear. Enter in the
Starter Current Draw for the vehicle
you are testing. Press the Done
button and then press the Start Test
button.
If the combined voltage
drop of the positive and
negative circuit is less than
500mV, the voltage drop test
passes. If the voltage drop
test fails you should start by
troubleshooting and repairing
the side of the circuit with the
highest voltage drop.
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