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)

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Transmission Mode Switch: Testing and Inspection

Transmission Control Switch (TCS)
The Transmission Control Switch (TCS) is a momentary contact switch located on the end of the shift control selector lever. Pushing the Transmission Control Switch (TCS) will either disengage or engage the overdrive function of the transmission. If the overdrive ((D)) is disengaged, the message O/D OFF will illuminate on the instrument panel.