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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Brake Fluid Pressure Sensor/Switch: Service and Repair

Brake Pressure Sensor
The pressure sensor is integrated in the hydraulic unit and senses the brake pressure from the master cylinder in the primary circuit. The pressure sensor sends information to the control module about the current pressure, which is proportional to how hard the driver presses the brake pedal.