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9926806 R03 - 2015 - 2016 RANGER ETX / 570 2-SEAT 2015 - 2016 RANGER 570 CREW Service Manual
© Copyright Polaris Industries Inc.
AWD DIAGNOSIS
Symptom: AWD Will Not Engage
1. Check the gearcase coil resistance. To test the coil
resistance, measure between the Grey and Brown/
White wires. The measurement should be within
specification.
Front Gearcase Coil Resistance:
21.6 - 26.4 Ω
2. Turn the ignition and AWD switches on and place
gear selector in High or Low gear. Check for
minimum battery voltage at the Gray and Brown/
White chassis wires that power the coil. A minimum
of 11 Vdc should be present.
3. If electrical tests are within specification, remove
gearcase (see “Gearcase Removal”) and inspect
components.
4. Inspect the armature plate for a consistent wear
pattern. There should be two distinct wear bands
(one band inside the other). If only one band of wear
is present (or if there is wear between the two
bands), inspect the coil area as indicated in Step 5. A
wear band with an interrupted wear mark may
indicate a warped plate, which may cause
intermittent operation. See the following illustrations:
5. Check to make sure the coil is seated in the U-
shaped insert that is pressed into the gearcase
cover. The top of the coil should be seated below the
U-shaped insert. The U-shaped insert controls the
pole gap. If the top of the coil is above the surface of
the U-shaped insert it raises the armature plate,
thereby increasing pole gap. If the pole gap
increases the coil will not be strong enough to
engage the AWD system. If this is found, replace the
cover plate assembly.
6. Inspect the rollers for nicks and scratches. The
rollers must slide up, down, in and out freely within
the roll cage sliding surfaces and H-springs.
7. Inspect the roll cage assembly for cracks or
excessive wear. If damaged, replace the roll cage
assembly.
FINAL DRIVE
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