CarFactBook Diagnostics V2.3

Start with what the car is doing.

Choose a symptom and, when possible, an exact vehicle code. Work through structured observations first, then compare them with reviewed owner evidence. CarFactBook does not invent a diagnosis or rank a failed part from unsupported anecdotes.

Symptom first

What are you seeing?

Choose an exact vehicle

Selected: Toyota Vitz NCP131 · 2011–2012 RS G’s reference

Browse or contribute reviewed problem & repair evidence →