Nissan
Throttle closed-position learning failed repeatedly. Usually a dirty or faulty electronic throttle body; idle may be unstable.
P1226 fault code: what it means
P1226: Throttle closed-position learning failed repeatedly. Usually a dirty or faulty electronic throttle body; idle may be unstable.
Usual causes, most likely first
- electronic throttle body (TP sensors) faulty
- carbon build-up in throttle body
P1226 by make
What the repair usually costs
- Throttle body clean and idle relearnNZ$90–NZ$190 · A$100–A$200
- Electronic throttle body replaceNZ$470–NZ$1,290 · A$440–A$1,190
- Intake valve carbon clean (walnut blast, direct injection)NZ$530–NZ$1,190 · A$560–A$1,240
Not sure what P1226 means on your car? Ask Credov.
Before you clear it
Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.
Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.