16 distinct codes across 16 real Mazda diagnostics.
16 distinct codes across 16 real diagnostics on Mazda, including the Mazda-specific ones no generic code list can decode.
Mazda-specific codes
These are manufacturer-specific, which means the same code on another marque is a different fault. That is exactly why they have no page of their own and no entry in any generic code list. Scoped to Mazda and ranked by how often we have actually seen them, they are a claim we can stand behind.
- P1412, seen in 1 Mazda diagnostic
Standard codes we see most on Mazda
These are standardised, so they mean the same thing on every vehicle. The counts are what we see on Mazda specifically.
- P0171, System too lean, bank 1
- P0101, Mass or volume air flow circuit range/performance
- P0113, Intake air temperature sensor 1 circuit high
- P0300, Random or multiple cylinder misfire detected
- P061D, not individually documented
- P0661, Intake manifold tuning valve control circuit low, bank 1
- P0100, Mass or volume air flow circuit
- P0139, O2 sensor circuit slow response, bank 1 sensor 2
- P0234, Turbocharger overboost condition
- P0472, Exhaust pressure sensor A circuit low
- P06DE, not individually documented
- P2459, Diesel particulate filter regeneration frequency
- P253F, not individually documented
- U0100, Lost communication with ECM/PCM A
What tends to go wrong on Mazda
By share of the codes we have seen on this marque. A description of our own caseload, not a reliability ranking.
- Fuel trim: lean or rich, 5 code sightings
- Air intake and MAF/MAP, 5 code sightings
- Not yet classified, 3 code sightings
- ECU internal and software, 2 code sightings
- Misfire, 2 code sightings
- Bus communication, 2 code sightings