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)

Or, hide this message: temporarily or permanently

Modify Coding




Modify Coding
Under the menu item Modify 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
- Buckle
- Seat occupancy (passenger)
- Child seat occupancy (passenger)
- USA vehicles

NOTE: If the coding does not agree with the vehicle equipment, faults will be displayed that do not really exist.

The ignition must be switched off and the ignition key removed after the coding is changed.