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

Park/Neutral Switch

This switch, connected to the transmission gear selector, is closed when the gear selector is in Park or Neutral.

When the switch is closed ignition timing is retarded.

It also is involved in the operation of the torque converter clutch and the idle speed control.