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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Modify Coding





Modify coding

Under the menu item "Change coding" you can adapt the airbag triggering unit to the vehicle equipment.

After the airbag triggering unit is replaced, the coding must be adapted to the vehicle equipment.

The following equipment features can be changed:
- Driver's/passenger's airbag
- Seat belt buckle
- Seat belt tensioner
- Child seat occupancy (passenger)
- USA (vehicles)

Coding table for USA vehicles







Coding table for RoW vehicles










NOTE:
- When the coding is changed in the menu item "Change coding" the ignition must always be switched off afterwards and the key removed.
- After the ignition is switched on again, the new coding from the airbag triggering unit is updated and the stored faults can be erased.
- If the coding does not agree with the vehicle equipment, faults will be displayed that do not really exist.