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B2200 B0xxx · ボディ (B) 重大度高
Anti-Theft / Key Data Mismatch
Stored key data does not match what the immobilizer or body module expects — typical after a module swap or an interrupted programming session.
重大度の目安： 高 — 走行を止めてすぐに診断してください。さらに損傷が広がる恐れがあります
確認できる症状
- No start with any key
- Immobilizer warning
- Multiple related fault codes
主な原因
可能性の高い順に並んでいます。上から順に確認してください。
- 1 ECU or body module replaced without key matching
- 2 Interrupted key programming
- 3 Corrupted immobilizer data
- 4 Wrong module fitted from another vehicle
点検・修理の手順
費用が安く侵襲の小さい項目から — これらのコードの大半は部品の問題ではありません。
- ✓ Confirm the module part number matches the vehicle.
- ✓ Check whether any recent programming was interrupted (low battery during the procedure).
- ✓ Read the immobilizer and ECU for matching status.
- ✓ Perform the manufacturer's key-learning procedure with the correct security access.
修理の選択肢
- Re-match keys with professional tooling
- Replace with the correct module and program it
B2200 — よくあるご質問
Can a flat battery cause this? +
Yes — voltage dropping during a programming session corrupts the data. Always use a stable supply.
Do I need the dealer? +
Not necessarily. Professional tools with the right security access can perform the same matching procedure.