[5] Accelerator Position Sensor This sensor converts the angle of the pedal effort applied to the accelerator pedal into electrical signals and sends them to the ECU. The accelerator sensor uses hall elements. A magnet is mounted on the shaft that moves in unison with the accelerator pedal, and the magnetic field orientation changes with the rotation of the shaft. The changes in the magnetic field orientation generate voltage. ECU Hall elements (2 pieces) Amplifier No. 2 Amplifier No.
1 A-Vcc +5V V VACCP1 A-GND 4.0 VAccp1 VAccp2 (V) 3.0 Magnets (1 pair) A-Vcc +5V 2.0 VACCP2 1.0 0 A-GND Accelerator opening (%) Accp 50 100 Q000107E [6] Idle Set Button (made by another manufacturer) A control knob is installed within reach of the driver, enabling the driver to set the idle rpm. It increases idle rpm using the idle-up switch, and decreases idle rpm to the normal rate using the idle-down switch. ECU IGt Idle-up switch Idle-down switch Q000108E [7] Main Relay To supply current to the ECU, the main relay points close when current is applied to the main relay coil. [8] PCV Relay The PCV relay supplies current to the supply pump PCV (discharge volume control valve). 16