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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Throttle Full Close Switch: Description and Operation

PURPOSE/OPERATION
The closed throttle position switch is a contact type switch which senses accelerator operation. The switch is installed at the tip of the idle speed control motor. When the throttle valve is at idle the idle speed control lever pushes the push pin to turn on the contact.