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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Camshaft Position Sensor: Description and Operation

PURPOSE/OPERATION
The light emitting diode and photo diode detect top dead center in the compression process of No.1 cylinder. The engine control module determines fuel injection control using the signals from the diodes.