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P0203

Overview

Code

P0203

Code Type

P

Code Class

P0

System

Engine

Severity Level

High

Emissions Related

true

Drivability Impact

Major

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0203 indicates a malfunction in injector circuit cylinder 3

Symptoms

Misfire

Overview applies to this diagnostic code.

Affected Systems

On This Page

  • Code Definition

  • Symptoms

  • Affected Systems

  • Possible Causes

  • Diagnostic Steps

  • Drive Safety Notes​

More Resources

Cylinder 3 fuel injection

Possible Causes

Injector 3 failure

Diagnostic Steps

1 Swap injectors; 2 Check wiring

Drive Safety Notes

Engine vibration increased

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