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)

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Accelerator Pedal Position Sensor: Description and Operation

The APP sensor is mounted on the accelerator pedal assembly. The APP is actually 3 individual APP sensors within 1 housing. There are 3 separate signal, low reference, and 5-volt reference circuits. The APP sensor voltage increases as the accelerator pedal is depressed.