Throttle Control Sensor (Tcs); Throttle Lever Position Sensor Overview; Throttle Control Sensor Test; Throttle Control Sensor Replacement - Polaris Sportsman 850 Service Manual

THROTTLE CONTROL SENSOR (TCS)

THROTTLE LEVER POSITION SENSOR
OVERVIEW
NOTE
DO NOT attempt to service the Throttle Lever Position
Sensor. The Throttle Lever Position Sensor is a non-
serviceable component and can only be tested using
Digital Wrench®. If the Throttle Lever Position Sensor is
faulty, the entire right hand control assembly must be
replaced.
Mounted to the right hand control assembly, the Throttle
Lever Position Sensor acts as a throttle position sensor.
The TCS provides throttle lever position to the Electronic
Control Unit (ECU) to increase or decrease engine RPM
using the Electronic Throttle Control (ETC). The Throttle
Lever Position Sensor is the primary input used to control
engine speed during vehicle operation.

THROTTLE CONTROL SENSOR TEST

The TCS can be tested utilizing Digital Wrench® by
verifying that throttle position readout varies as the pedal
is pressed. Reference the Data Display section and be
sure Throttle Position is displayed. With the ignition key
on for at least 15 seconds and engine not running, the
Throttle Position will read approximately 9.6% when the
throttle lever is released.
THROTTLE CONTROL SENSOR
REPLACEMENT
NOTE
The Throttle Control Sensor is calibrated to the right
hand control. If the Throttle Control Sensor is faulty, the
throttle lever assembly must be replaced.
1. Disconnect the negative (-) battery cable.
2. Disassemble the headlight pod.
3. Disconnect the throttle control assembly
w
form the wiring harness.
e
4. Remove the screws clamping the throttle control
assembly to the handle bars.
5. loosely fasten the new throttle control assembly to the
handle bars.
6. Adjust the position for the throttle control assembly to
a comfortable riding position and evenly tighten the
screw to clamp the throttle control assembly to the
handle bars.
NOTE
Verify that the throttle control assembly does not rotate
on the handle bars.
7. Move the thumb lever through the full range of motion
to ensure smooth operation.
8. Connect the throttle control assembly to the vehicle
wiring harness.
9. Assemble the headlight pod and re-fasten the wiring
with panduit straps as required.
10. Connect the negative (-) battery cable.
FUEL SYSTEM
q
connector
4
4.27