Taylor-Dunn G0-010-00, Service And Replacement Parts Manual

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9929758 R01 - 2019 TAYLOR-DUNN G-100 Service Manual
© Copyright TAYLOR-DUNN
PEDAL POSITION SENSOR (PPS)
OPERATION OVERVIEW
NOTICE
DO NOT attempt to service the PPS. The PPS is a non-
serviceable component and can only be tested using
Digital Wrench®. If the PPS is faulty, the entire throttle
pedal assembly must be replaced.
Mounted to the throttle pedal assembly, the PPS acts as
a pedal position sensor. The PPS provides accelerator
pedal position to the Electronic Control Unit (ECU) to
increase or decrease engine RPM using the Electronic
Throttle Control (ETC). The PPS is the primary input
used to control engine speed during vehicle operation.
PPS TEST
The PPS can be tested utilizing Digital Wrench® by
verifying that pedal position readout varies as the pedal
is pressed. Reference the Data Display section and be
sure the Pedal Position is displayed. With the ignition key
on for at least 15 seconds and engine not running, the
Pedal Position will read approximately 9.6% when the
pedal is released. With the pedal fully depressed, the
Throttle Position will vary depending on what gear you
have selected.
• High/Neutral/Park/Invalid – 100%.
• Low – 100%
• Reverse – 100%
NOTICE
If the PPS fails, disconnect the battery power for 10
min. and retest.
The Pedal Position Sensor is calibrated to the
accelerator pedal. If the PPS is faulty, the accelerator
pedal
assembly must be replaced (see "PPS
Replacement").
PPS REPLACEMENT
1. Disconnect the PPS harness connection
q
located
on the accelerator pedal.
2. Remove the seat and disconnect the negative (-)
battery cable.
3. Remove the bolts
w
securing the accelerator pedal
assembly to the frame support.
4. Remove the pedal assembly from the vehicle.
FUEL SYSTEM