Circuit Operation

The throttle position sensor signal is sent to the auto-cruise control-ECU through this circuit. The auto-cruise control-ECU receives a signal from the throttle position sensor at terminal No. 1. The signal is OFF when the accelerator pedal is depressed, and ON when the accelerator pedal is released. The throttle position sensor sends a voltage signal to terminal No. 1 of the auto-cruise control-ECU. The voltage depends on throttle opening angle.