Code result
P064F
Unauthorized Software or Calibration Detected
Moderate severity
What it means
The ECU's secure boot or signature check has detected calibration data that is not signed by the manufacturer - typically appears after chip-tuning or unauthorised flash programming. The ECU may run on safe defaults or refuse to start.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Unauthorized tuning software flashed
highOne of the most commonly reported causes for this code — check this first.
Related help
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