The mass air flow sensor circuit is reporting values outside the expected range.
Informational only. Consult a qualified mechanic.
Clean the MAF sensor first. If the code persists, inspect wiring and consider replacement.
The P0100 OBD-II diagnostic trouble code (DTC) indicates: maf sensor circuit malfunction. This is a medium-severity powertrain code that your vehicle's onboard diagnostics system triggers when the mass air flow sensor circuit is reporting values outside the expected range. If your check engine light is on with this code, the vehicle is generally safe to drive, but you should have it inspected soon.
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