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
If it fails: lemon-manuals.org.ua

Or, hide this message: temporarily or permanently

Brake Switch (Cruise Control): Description and Operation


The cruise control is disengaged by depressing the clutch or brake pedal. This system uses two separate clutch or brake release switches. When the clutch or brake pedal is depressed, an electrical release switch opens which releases the resume solenoid, and vacuum to the transducer is vented. The transducer mechanical memory records the speed set earlier and requires resume switch operation to re-engage. When the clutch or brake pedal is depressed, a vacuum release valve is also operated, venting system vacuum to the air. This valve enables the servo unit to rapidly bleed vacuum and return the throttle to idle position.