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)

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Man Machine Interface (MMI)



Man Machine Interface (MMI)

The MMI is part of the PCM2 (on the main board), It carries out the diagnostics of the ring break diagnosis line (stub cable) and the diagnostics of the optical distribution line.