Circuit Operation

The throttle position sensor signal and idle position signal are sent to the auto-cruise control-ECU throughout this circuit.

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.

The auto-cruise control-ECU receives an idle position signal from the ECM at terminal No. 2. The signal is OFF when the accelerator pedal is depressed, and ON when the accelerator pedal is released.