Powertrain
generic / SAE
P0100
Mass or Volume Air Flow Circuit Malfunction
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.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number1 / 00
Possible causes
- MAF sensor element contaminated (oil, dust) high
- MAF wiring or connector damaged medium
- Mass air flow sensor failed medium
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 50–350 €
- Estimated time: 0.3–1.5 h
- Component: mass air flow sensor
- Component: maf wiring
- Component: maf connector
- Component: intake duct
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012