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: Description and Operation

When a failure occurs in either the front or rear brake line, the differential switch, detecting a pressure difference in the brake line, turns ON the brake warning light in the combination meter.
Antilock Brake System (ABS) will be disabled and the ABS warning light is turned ON. After the brake system is repaired, depressing the brake pedal will apply pressure to set the switch automatically (at OFF position).