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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Check 4, Vehicle Speed Sensor

The vehicle speed sensor is installed within the speedometer and sends pulse signals to the control unit in proportion to vehicle speed. The vehicle speed sensor is a reed switch type of sensor, generating four pulse signals each rotation of the speedometer driven gear.