Electronic Throttle Position

Throttle Valve Position: The throttle plate position is monitored by two integral potentiometers providing DC voltage feedback signals to the ECM.







Potentiometer signal 1 is the primary signal (closed 0.5V full open 4.5V).

Potentiometer signal 2 is used as a plausibility crosscheck (closed 4.5V - full open 0.5V) through the total range of throttle plate movement.