B2795 · blink 99 – UNMATCHED KEY CODE

System: Engine immobiliser
Dashboard light: Security indicator light (symptom); check RM 05-818 for read method
Applies to: Cars with engine immobiliser
Check-engine blink code: 99
Description: UNMATCHED KEY CODE
Detection / symptoms: Detection: Unmatched key code
Possible causes: Key; Unregistered key inserted before
What to check: See RM page (inspection steps not parsed)
Confidence: high (official Toyota RM821E)

From the factory service material. Clear the code and test-drive to confirm it returns. Search all fault codes · Common problems · Warning lights