Ignition Coil Overview; Ignition Coil / Wire Overview; Ignition Coil / Wire Test - Polaris RANGER 500 2017 Service Manual

FUEL SYSTEM

IGNITION COIL OVERVIEW

IGNITION COIL / WIRE OVERVIEW

The ignition coil uses induction to convert high current,
low voltage in the primary ignition coil winding into low
current, high voltage in the secondary ignition coil
winding. The secondary side is the output that goes to
the ignition wire/cable, and then to the spark plug. The
circuit is completed to ground through the cylinder head
and then through engine ground back to the coil. When
the ignition key is on, DC voltage is present in primary
side of the ignition coil windings.
Spark is induced by the ECU opening the ground leg of
the coil circuit. This causes the magnetic field in the
primary to collapse, causing self induction and a great
voltage increase in both the primary and secondary. This
causes voltage to become high enough in the secondary
circuit that it can jump the spark plug gap.

IGNITION COIL / WIRE TEST

The ignition coil can be tested using an digital multimeter.
Use the following specification table and illustrations to
test the ignition coil.
TEST CONNECTION
Primary Coil Coil Pack + and –
Pins
Secondary Coil Coil Pack – and
Spark Plug Wire
Terminal
Spark Plug Wire Wire Connector
Terminal and
Spark Boot
Terminal
COIL PACK CONNECTIONS
5.22
SPARK PLUG WIRE CONNECTIONS
RESISTANCE
0.50Ω +/- 10%
6.6kΩ +/- 10%
7.0kΩ +/- 10%
9850043 R01 - 2017-2021 RANGER 500 / 570 Service Manual
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