Operation CHARM: Car repair manuals for everyone.
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

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Brake Switch (Cruise Control): Description and Operation



Brake Pedal Position (BPP) Switch







If the brake pedal is operated while the speed control system is active, the ECM receives a signal from the BPP switch. This will cancel vehicle speed control and allow the throttle blade to return to the position as demanded by the accelerator pedal.

Speed Control Deactivation Switch (brake).







If the brake pedal is activated while the speed control system is active, the ECM receives a signal from the speed control deactivation switch. This will cancel speed control and allow the throttle blade to return to the position as demanded by the accelerator pedal.