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P059F fault code: what it means

P059F: Active air shutter (grille shutter) spinning free: opening angle not controlled. Minor economy loss; engine may run warmer or cooler.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

  1. active air shutter assembly broken
  2. PCM

P059F by make

Mazda

Active air shutter (grille shutter) spinning free: opening angle not controlled. Minor economy loss; engine may run warmer or cooler.

Usual causes: active air shutter assembly broken; PCM

Not sure what P059F 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.