Vehicle Speed Sensor (Vss); Vss Operation Overview; Vss Test; Vss Replacement - Polaris General 2020 Service Manual

VEHICLE SPEED SENSOR (VSS)

VSS OPERATION OVERVIEW

The vehicle speed sensor (VSS)
side of the transmission, accessed through the rear RH
wheel well.
The VSS is a Hall effect sensor. It operates on a three
wire circuit: 5 volt supply voltage, ground, and signal
back to the ECU. The Hall sensor is effectively a switch,
it closes when a tooth of the transmission output gear
passes within its operating range, and opens again when
the tooth moves out of range. The speed that the switch
opens and closes provides input to the ECU. The ECU
then interprets this switching into the speed the output
gear is rotating.
9850067 R01 - 2020-2021 GENERAL / GENERAL XP Service Manual
© Copyright Polaris Inc.

VSS TEST

1. Disconnect the three wire harness from the speed
2. Connect the wires from the Static Timing Light
3. Pass a screwdriver back and forth in front of the
4. Be sure connections are good and 9V battery is in

VSS REPLACEMENT

1. Disconnect the three wire harness from the speed
q
is located on the RH
2. Remove the sensor from the transmission.
3. Install new speed sensor. Torque sensor to
4. Connect the harness going to the peed sensor.
CHASSIS / BODY ELECTRICAL
sensor and remove the sensor from the transmission.
Harness (PN 2871745) to the sensor 3 pin connector
using the Hall Sensor Probe Harness (PN 2460761).
sensor tip.
good condition. If the light flashes, the sensor is good.
sensor.
specification.
TORQUE
Speed Sensor:
12 lb-ft (16 Nm)
12
12.75