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9924871 R03 - 2014 Polaris Sportsman® 570 EFI Service Manual
© Copyright 2013 Polaris Sales Inc.
THROTTLE RELEASE SWITCH (TRS)
Throttle Release Switch (TRS)
The Throttle Release Switch (TRS) switch is designed to close during throttle movement in the event the throttle cable
sticks or breaks.
When the throttle lever is at idle position, the TRS switch contacts should be closed (touching). When the throttle lever
is moved the contacts will open and allow normal operation. If the contacts remain closed or become closed during
throttle movement, the ECM will limit engine RPM.
NOTE: The throttle cable must have the proper amount of free-play adjustment. Refer to Chapter 2 “Throttle
Cable Adjustment” procedure.
TRS SWITCH - CONTACT POSITIONS
Throttle Lever at Rest (idle)
TRS is CLOSED.
Pins 1 and 2: 2.15kΩ
Normal Operation (throttle open or above idle)
TRS is OPEN.
Pins 1 and 2: 6.76kΩ
Throttle Cable Stuck
TRS is CLOSED
Pins 1 and 2: 2.15kΩ
ELECTRICAL
