Testing For Intermittent Conditions; Testing Current Flow (Amperage); Current Draw - Key Off - Polaris 850 MATRYX INDY XC 129 2021 Manual

GENERAL INFORMATION

TESTING FOR INTERMITTENT CONDITIONS

Intermittent conditions are very difficult to diagnose, as
when you are testing the circuit, you may not have the
circuit failing to indicate where the issue is. Intermittent
electrical failures are almost always related to a poor
connection that only goes open in specific situations,
such as going over a certain kind of bump, at a certain
temperature, or when the machine is torque loaded in
one way.
Here is a list of possible failures that can be associated
with an intermittent electrical failure:
• Loose female terminal in an electrical connector.
NOTICE
If the terminals in question are the correct size/series,
always use PV–43526 to test the drag when inserting
and removing the test terminal adapters. Compare the
effort to the drag against the known good tester
terminal for reference.
• Poor terminal to wire crimp.
• Terminal crimp that occurred at least partially on
insulation instead of the conductor wire strands.
• Terminal fretting corrosion
• Contamination/moisture corrosion
• A full or partial break of the conductor wires in the
insulation, with or without visible insulation damage.
• Improper routing, especially when it leads to chaffing
or heat damage, especially near exhaust.
You may need to use different techniques to duplicate
these concerns. These include but are not limited to:
• Moving the harness by wiggling it or flexing certain
areas.
• Pulling at or near the suspected connector.
• Pushing in different directions to flex the connector
body and try to isolate poor connections.
• Changing the temperature. This can be accomplished
with either heat guns or cold air guns.
Always exercise caution when using these tools, and
use them for short periods of time when changing the
temperature of an area. Failure to do so can lead to
serious injury and/or damage to the machine.
1.80
WARNING
9850064 R03 - 2021 650 / 850 Matryx Trail Performance / Crossover Snowmobile Service Manual

TESTING CURRENT FLOW (AMPERAGE)

Performing a current flow test requires the meter leads
be inserted into the correct cavities in the meter, and be
placed in series in the circuit to be tested. Refer to your
Digital Multi Meter's owner's manual for potential model
specific instructions. Ensure you are using acceptable
adapters to avoid damaging the connector terminals.
See Connector Probing Guidelines page 1.77.
NOTICE
Amperage specs are generally not provided for circuits/
components. Please only perform this test when
advised in the manual.
IMPORTANT
Many circuits on this machine will exceed the 10 Amp
fuse in most Digital Multi Meters in normal operation.

CURRENT DRAW - KEY OFF

Parasitic draw is when there is excessive current flow
with the key off.
While the most common causes of draws are improperly
installed accessories (tapping into un-switched B+
instead of switched) there can be electronic component
failures that can cause this as well.
IMPORTANT
Do not connect or disconnect the battery cable, or
ammeter with the engine running. Damage will occur to
electrical components.
IMPORTANT
Charging system damage will occur if incompatible
components are installed. Always reference the Polaris
Electronic Parts Catalog for the proper part numbers.
NOTICE
Wait ten minutes with the key off for the ECU to power
down. This will avoid a faulty readout while testing
amperage draw.
TESTING PROCEDURE
1. Remove the negative cable from the battery.
2. Connect a jumper from the negative battery cable
terminal to the negative battery post.
3. Ensure your meter leads and selector dial are set to
measure amperage.
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