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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Information Bus: Service and Repair






CAN-Bus Wires Repair Information

Use an unshielded two-wire line - 1 - and - 2 - (cross-section 0.35 mm2 or 0.5 mm2) as CAN-Bus bus wire.





color coding of CAN-Bus bus wires:





Only use yellow wires for repairs to wiring. Mark location of repair with yellow insulating tape.

Both bus wires must be of the same length when repairing. When twisting the wires - 1 - and - 2 -, length of twist - A - = 20 mm must be attained.

When making repairs, there must be no untwisted section of wire which is longer than - B - = 50 mm, e.g. in the vicinity of heat-shrink sleeves - arrow -.