11.60
9929422 R02 - 2017-2019 ACE 900 Service Manual
© Copyright Polaris Industries Inc.
MISC. ELECTRICAL
VEHICLE SPEED SENSOR
SPEED SENSOR LOCATION
The speed sensor
q
is located on the RH side of the
transmission, accessed through the rear RH wheel well.
SPEED SENSOR TESTING
1. Disconnect the 3 wire harness from the speed
sensor and remove the sensor from the
transmission.
2. Connect the wires from the Static Timing Light
Harness (2871745) to the sensor 3 pin connector
using the Hall Sensor Probe Harness ( 2460761).
3. Pass a screwdriver back and forth in front of the
sensor tip.
4. Be sure connections are good and 9V battery is in
good condition. If the light flashes, the sensor is
good.
ALL WHEEL DRIVE (AWD) COIL
OPERATION OVERVIEW
• When the key switch is “ON”, 12 VDC power is present
at the hub coil.
• When the AWD switch is “ON”, and if the criteria is
met, the Engine Controller provides a ground path
(brown/white wire). When this occurs the AWD icon
should display in the instrument cluster.
• The AWD system must be grounded to operate.
DIAGNOSING SYSTEM FAILURES
• Verify the AWD switch is functional and that a
minimum of 11 volts is present at the hub coil.
• Verify the AWD hub coil is functional. Test the AWD
hub coil using an ohm meter. See specifications below:
AWD Hub Coil Resistance:24 Ω ± 5%
• Verify the wiring harness, wiring, connectors,
connector pins and grounds are undamaged, clean
and connect properly.
• Verify continuity of wire connections with a known
good volt/ohm meter.
NOTICE
Verify all wires and wiring connections have been
tested properly with a known good volt/ohm meter
before suspecting a component failure. 80% of all
electrical issues are caused by bad/failed connections
and grounds.
ELECTRICAL
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