Fiat Diagnostic Trouble Codes

OBD2 fault codes seen on Fiat vehicles, with what each code means, its typical repair cost range, and notes on specific Fiat models.

Misfire

P0303High

Cylinder 3 Misfire Detected

Fiat 500 • 2007-2024

The 0.9 TwinAir 2-cylinder does not have a cylinder 3, but the 1.2 Fire and 1.4 MultiAir 4-cylinder ...

Electrical

P0500Moderate

Vehicle Speed Sensor "A" Malfunction

Fiat Punto • 2005-2018

The Punto Grande and Punto Evo use a magnetic pickup speed sensor on the gearbox. These sensors are ...

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