What does the PTO switch in a diesel vehicle mean?

1 Answers
AndersonDella
07/30/25 6:59am
PTO stands for Power Take-Off. PTO principle: After starting the vehicle and setting a target speed via PTO, the engine will stabilize at this speed under the control system, maintaining a constant vehicle speed. Even pressing the accelerator will not change the vehicle speed. PTO introduction: PTO is a power output device, also known as a power take-off unit. It has high requirements for engine speed and precision, which are actually controlled by the ECU. The ECU determines the speed by extracting signals from the PTO switch and PTO potentiometer, thereby controlling the vehicle speed.
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