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VOLTAGE DROP TEST (Starter Cable Test)
The screen will show you
where to make your connections.
The large clamps need to be con-
nected to the starter terminals The
red clamp to the starter positive
terminal, black to the starter ground.
The small clamps need to be con-
nected to the battery posts. The
small red clamp to the battery +, the
small black clamp to the battery -.
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 deter-
mine if the cables or connections are the cause of any problems.
Select Starting Cable Test.
If the combined voltage drop
of the positive and negative
circuit is less than the allotted
value found in the RP129B
specication for the type and
size of engine, 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.
If measured voltage drop is
greater than 550mV you will
be asked to choose engine
type and size.
Once connections are made press
START TEST to initiate test.
Select individual tests, then select
the V DROP Test from the main
menu.
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