What does code P0203 mean?

Injector Circuit Malfunction - Cylinder 3: The fuel injector circuit for cylinder 3 has an electrical fault.

P0203 is rated as high severity. Address soon — may cause further damage.

P0203

Injector Circuit Malfunction - Cylinder 3

Powertrain Code · High

What does P0203 mean?

The fuel injector circuit for cylinder 3 has an electrical fault.

System: Fuel Injector

P0203 is a powertrain diagnostic trouble code indicating injector circuit malfunction - cylinder 3. This code is classified as high severity, which means: address soon — may cause further damage.

Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your vehicle.