If the application is using the ECM dedicated PTO
functions, the digital throttle position sensor will be
ignored while the engine is in PTO mode.
The ECM is in PTO mode if the PTO ON/OFF Switch
is ON. This status can be checked with the electronic
service tool. Refer to Troubleshooting, “Power Take-
Off - Test” for testing if the PTO is being used.
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.
UENR4469-36 427
Circuit Tests
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