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

Shift Interlock: Description and Operation

With the starter switch in the "ON" position and the shift lever in "P" position, the shift lever cannot be shifted from "P" to another position unless the brake pedal is depressed. This is because, unless the brake pedal is depressed, the solenoid pin underneath the shift lever retracts and the link lever then locks the shift lever cam.