Page 79 - Manual_Polaris_RZR

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GENERAL INFORMATION

ELECTRICAL DIAGNOSTICS STATIC AND DYNAMIC TESTING

ELECTRICAL SERVICE NOTES There are many methods for testing a DC circuit. These 1
methods fall into one of two categories, either static or
Keep the following notes in mind when diagnosing an dynamic.
electrical problem.
STATIC TESTING
• Refer to wiring diagram for stator and electrical The two most common forms of static testing are:
component resistance specifications.
• Resistance testing (the Ohms setting on your DMM)
• When measuring resistance of a component that has a
low resistance value (under 10 Ohms), remember to • Measuring voltage with the circuit open, such as when
subtract meter lead resistance from the reading. the harness connector is off a sensor you are testing.
Connect leads together and record the resistance. The This is commonly referred to as measuring “Available
resistance of the component is equal to tested value Voltage”.
minus the lead resistance.
These two tests will help you find the majority of electrical
• Become familiar with the operation of your meter. Be
sure leads are in the proper jack for the test being issues. If they do not, we must remember that static
performed (i.e. 10A jack for current readings). Refer to circuit testing does not take into account how current
the Owner’s Manual included with your meter. actually flows in that circuit. That is only accomplished
with dynamic testing.
• Voltage, amperage, and resistance values included in
this manual are obtained with a Fluke™ 77 Digital Before attempting dynamic testing (as it is intrusive on
Multimeter (PV-43568). This meter is acceptable for sealed connectors and damage could be done if not
use when diagnosing electrical problems. Readings careful), verify the following:
obtained with other meters may differ. • Static voltage testing advised for that circuit has been
• Pay attention to the prefix on the meter reading (K, M, completed, and is in spec.
etc.) and the position of the decimal point. • All associated circuits have under 1 ohm of resistance
• For resistance readings, isolate component to be from end to end. Testing Continuity / Resistance page
tested. Disconnect wire harness or power supply. 1.75
• All associated circuits have no shorts to ground.
Testing For A Short To Ground page 1.75
DIGITAL MULTI-METER (DMM) NOTES • All associated circuits have no shorts to voltage.
Testing For A Short To Voltage page 1.76
Polaris advises to only use a high quality DMM that
meets the same standards as the Fluke™ 77 (PV-43568)
for electrical testing. DYNAMIC TESTING
There are two types of dynamic testing we will advise to
Unless you are very familiar with Ohm’s Law, and have
complete information about the circuit you are trying to use when diagnosing electrical concerns:
diagnose, test lights are likely to provide results that • Current flow testing (Amperage) Testing Current Flow
would be misleading. This is especially true if any solid (Amperage) page 1.77. Measuring Amperage is not a
state component is involved, where you will almost common practice, as you will not typically have a spec
certainly not have complete circuit information. to compare your reading to. Also, many components
Polaris also specifically advises against the use of other on this machine flow over 10 Amps, which will blow the
circuit testing devices, including but not limited to: majority of DMM fuses. The exception to this is a
parasitic draw test refer to Current Draw - Key Off
• Short finders page 1.78.
• Simplified circuit testers • Measuring voltage drop. Performing this test correctly
will give you understanding of how electrical pressure
• Fuse piggy-back devices
(voltage) varies in a circuit as current is flowing.
Testers beside a DMM will only work in one scenario, Testing Voltage Drop page 1.78
and slight variables can provide you with misleading
results. The testing practices described in this chapter
are more certain and rely only on the DMM and your
knowledge.

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