No previous related issues and it has always been able to start until very recently. I have 2 keys and neither had any issues before. Don't see what could have caused the problem. Tried disconnecting the battery and reconnecting it after 15-30 minutes but it doesn't change anything. Neither does trying to reset the ECU or immobilizer by connecting the 4th and 13th pins on the OBD-II connector, turning on the ignition, and waiting 30-45 minutes.
The security light turns off when I insert the key (happens for both keys I have), presumably indicating that the immobilizer does recognize the key,…
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