The sensor is most likely to be mounted on a throttle
pedal. The sensor is attached directly to the throttle
assembly. The sensor provides an output voltage to
the ECM. The sensor output voltage will vary with the
position of the throttle. Foot operated or hand
operated throttle assemblies are available.
The sensor receives +5 VDC power from the ECM.
The sensor will produce a raw signal voltage that will
alter between low idle and high idle. The voltage is
changed into a throttle position within the range 0%
to 100% by the ECM.
The sensor senses the speed requirement from the
throttle position. A second sensor may override this
speed requirement from the first sensor. This
override will be subject to an input from a secondary
throttle or from the SAE J1939 (CAN) data link or
from a PTO control.
Use the electronic service tool in order to check the
input status.
Note: The identification letters for the terminals in the
connectors may vary dependent on the manufacturer
of the throttle pedal.
During the following procedure, refer to the electrical
schematic for the application.
Complete the procedure in the order in which the
steps are listed.
420 UENR4469-36
Circuit Tests
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
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