Fiat Diagnostic Trouble Codes

OBD2 fault codes seen on Fiat vehicles, with what each code means and the Fiat models it shows up on. Each code's page has its typical repair cost range.

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Misfire

P0303High

Cylinder 3 Misfire Detected

Fiat 500 • 2007-2024

The 0.9 TwinAir is a two-cylinder engine, so it cannot set P0303; the 1.2 Fire and 1.4 Fire four-cylinder…

Electrical

P0500Moderate

Vehicle Speed Sensor "A" Malfunction

Fiat Punto • 2005-2018

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