Code result
P0100
Mass or Volume Air Flow Circuit Malfunction
Moderate severity
What it means
The ECU detects a general electrical malfunction in the mass air flow (MAF) sensor circuit. The signal is missing, out of plausible range, or the wiring shows continuity issues. Used as a generic fault when no more specific MAF code applies.
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
MAF sensor element contaminated (oil, dust)
highOne of the most commonly reported causes for this code — check this first.
MAF wiring or connector damaged
mediumA plausible cause — test and verify before replacing parts.
Mass air flow sensor failed
mediumA plausible cause — test and verify before replacing parts.
Related help
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