Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
Or, hide this message:
temporarily or
permanently
Accelerator Pedal Position Sensor: Description and Operation
The Accelerator Pedal Position (APP) Sensor is a Hall Effect, angle of rotation sensor. The
Accelerator Pedal Position sensor is located inside the accelerator pedal assembly. A magnet located in the pedal shaft cylinder rotates around a hall effect pick-up. The voltage signal increases as the accelerator pedal depresses. The APP sensor receives a
5 volt reference signal from the ECM and based upon the position of the pedal shift magnet relative to the windows on the Hall effect sensor, a portion of the
5 volts is returned to the ECM indicating pedal position.