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9850067 R01 - 2020-2021 GENERAL / GENERAL XP Service Manual
© Copyright Polaris Inc.
4.9
ACCELERATOR POSITION SENSOR (APS)
APS OPERATION OVERVIEW
The accelerator position sensor
q
is located on the top
of the accelerator pedal lever. The APS provides throttle
pedal position to the Electronic Control Unit (ECU) to
increase or decrease engine RPM using the Electronic
Throttle Control (ETC). The APS is the primary input
used to control engine speed during vehicle operation.
IMPORTANT
DO NOT attempt to service the APS. The APS is a non-
serviceable component and can only be tested using
Digital Wrench®. If the APS is faulty, the entire throttle
pedal assembly must be replaced.
APS TEST
The APS can be tested utilizing Digital Wrench by
verifying that the throttle position readout varies as the
pedal is pressed. Reference the Data Display section
and be sure Throttle Position is displayed. Throttle
Position should display as follows:
• Key on for less than 10 seconds and pedal released, ≈
2.8%
• Key on for more than 10 seconds and pedal released ≈
10.8%
• Pedal fully depressed ≈ 99.6%
The APS is calibrated to the throttle pedal. If the APS is
faulty, the throttle pedal assembly must be replaced.
APS REPLACEMENT
1. Remove the drivers seat and disconnect the negative
(-) battery cable.
2. Disconnect the APS harness connection located on
the throttle pedal.
3. Remove the three fasteners securing the throttle
pedal assembly to the frame support.
4. Remove the pedal assembly from the vehicle.
5. For installation, reverse removal. Torque mounting
fasteners to specification.
TORQUE
APS Mounting Fasteners:
8 lb-ft (11 Nm)
ENGINE ELECTRICAL
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