About Faultpedia
Faultpedia is a global automotive diagnostics resource. When a check engine light comes on or your car develops a symptom, we help you understand what it means, how serious it is, whether you can keep driving, and what it typically costs to fix — in clear language, backed by industry-standard OBD-II references.
What we cover
- Fault codes — what each OBD-II code means, causes ranked by probability, and step-by-step diagnosis.
- Symptoms — start from what you feel (misfire, rough idle, power loss) and find the likely codes.
- Vehicle-specific guides — model-specific causes and costs for common make/model + code combinations.
- Tools — practical recommendations for OBD-II scanners and repair tools.
How we build content
Our explanations are written originally and based on standardized OBD-II definitions and established automotive diagnostic practice. We prioritize the most common, highest-impact problems first, and we localize content for English, Spanish and Brazilian Portuguese readers — not by machine translation, but as proper localization with local terminology and currency.
Important
Faultpedia provides general information, not professional repair advice. Always consult a qualified mechanic before performing repairs. See our Disclaimer.