B2795 Unmatched key code in the immobilizer system
What does B2795 mean on a Toyota?
B2795. Unmatched key code in the immobilizer system. The key code does not match the one stored in the certification ECU. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.
Common causes of B2795
- Wrong key used on the vehicle
- Key not registered to the vehicle
- Faulty key transponder chip
- Faulty certification ECU
- Interrupted key registration
How to fix B2795
- Confirm the code with a scan tool
- Try a known good registered key
- Re-register the key to the vehicle
- Inspect and reseat the engine switch connector
- Replace the ECU only after tests fail