CarScan
B2205Body

Control module programming compatibility error

Where to start

The modules failed to agree during coding — the job was not finished. This is not a hardware fault: the car should go back to whoever did the programming. It is driveable, but some functions will behave oddly — usually the ones that need two modules to agree: one-touch windows, automatic lights, seat memory. ⚠️ Clearing the code is pointless: it comes back at the very next scan because it describes a present state rather than an event. If the car has recently been in for repair or had a module replaced, start there: nine times out of ten the new module was never written into the car's configuration.

A code is not a diagnosis. It says which check failed, not which part to replace. Clearing it without repair only means the car will report it again in a few trips.

How to put together a report a mechanic will actually read

How the code is built

Letter — the systemBody: lights, climate, airbags
Common or the maker's ownGeneric code, second group
Number of the faultThe serial number inside that group — it does not say how serious the fault is

All codes in «Body, airbags and lighting»

How the app helps

CarScan reads this code from your car through an OBD-II adapter, shows whether it is active now or only stored, names the module that reported it, and puts it into a plain-text report for your mechanic.

See what the app does

Unfamiliar word? Open the glossary

What the letter and the four digits mean