Throttle Release System (Trs) Switch; Trs Switch Operation; Trs Operation Test - Polaris Sportsman 800 EFI 4x4 2012 Service Manual

THROTTLE RELEASE SYSTEM (TRS) SWITCH

TRS Switch Operation

The Throttle Release System (TRS) system is designed
to stop the engine of an ATV in the event of a mechanical
problem with the throttle mechanism. The TRS switch is
mounted independently of the throttle actuator lever
inside the throttle block assembly. This is a normally
closed switch, and is held in the open position (contacts
are separated (as shown below) by throttle cable tension.
The contacts are open" during normal operation
regardless of throttle lever position. In the event of a
mechanical problem in the throttle mechanism (cable
tension is lost), the switch contacts close, connecting the
black wire to ground, which prevents ignition spark. This
is the same as turning the key or engine stop switch
"OFF".
NOTE: Test the TRS switch at the harness
connector. TRS will not activate unless there is
throttle plate movement off of "zero" detected by the
ECU. Adjust throttle cable freeplay (TRS switch) and
make sure throttle mechanism is functioning
properly before testing the switch.
Maintenance Chapter 2
procedure.
Refer to
for cable adjustment
9924864 - 2012-2014 SPORTSMAN 800 / 6X6
© Copyright 2013 Polaris Sales Inc.

TRS Operation Test

1. Remove throttle block cover by carefully releasing all
tabs around edge of cover.
2. Place transmission in neutral and apply parking
brake.
3. Start engine and open throttle lever slightly until
engine RPM is just above idle speed.
4. Hold throttle cable with fingers at point "A" as shown
below and release throttle lever. If the TRS system is
functioning properly, the engine will lose spark and
stop.
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