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9850045 R01 - 2020-2021 RANGER 1000 Service Manual
© Copyright Polaris Inc.
4.31
ACCELERATOR POSITION SENSOR (APS)
APS OPERATION OVERVIEW
NOTICE
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.
Mounted to the throttle pedal assembly, the APS acts as
a pedal position sensor. 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.
APS REPLACEMENT
NOTICE
The APS is calibrated to the throttle pedal. If the APS is
faulty, the throttle pedal assembly must be replaced.
1. Disconnect the APS harness
q
.
2. Remove the three fasteners
w
retaining the throttle
pedal bracket to the chassis.
3. Install new pedal assembly and torque the fasteners
to specification.
TORQUE
Pedal Bracket Nuts:
8 ft-lbs (11 Nm)
4. Connect the APS harness.
APS TEST
The APS 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.
SENSOR 1
PEDAL POSITION VOLTAGE READING
Pedal Released 1.2 V
Pedal WOT 4.2 V
SENSOR 2
PEDAL POSITION VOLTAGE READING
Pedal Released 0.6 V
Pedal WOT
2.1 V
The Accelerator Position Sensor is calibrated to the
throttle pedal. If the APS is faulty, the throttle pedal
assembly must be replaced.
ENGINE ELECTRICAL
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