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Your vehicle’s fuel injection system sprays atomized fuel into the cylinders or intake manifold of the engine. It is equipped with circuits that move the injector’s valves to an open position.

Code P0205 can be logged when your vehicle’s powertrain control module (PCM) detects an issue in the Cylinder 5 injector circuit. Read on to learn more about this diagnostic trouble code.

What Is Code P0205?

Diagnostic trouble code (DTC) P0205 stands for “Cylinder 5 Injector Circuit Malfunction”. Usually, a P020x code will correspond to a cylinder, i.e., “P0204” for “cylinder 4” or “P0205” for “cylinder 5.”

Modern vehicles are equipped with fuel injectors. These injectors supply atomized fuel into your engine’s cylinders or intake manifold. These injectors help your engine achieve the right air-fuel mixture to keep your vehicle running.

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hand holding a fuel injector
Modern vehicles are equipped with fuel injectors. These injectors supply atomized fuel into your engine’s cylinders or intake manifold.

Your vehicle’s PCM monitors the operation of these fuel injectors. If they are activated, the voltage should read “low” or close to zero. When switched off, a high reading is expected.

Code P0205 can be triggered once the PCM detects that the injector’s voltage in Cylinder 5 does not match its current state (activated/switched off). It also means that the voltage and resistance are not within range.

For a better understanding of how fuel injectors work, read our advanced discussion about fuel injection.

Note: The definition of code P0205 may be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition.

What Are the Common Causes of the P0205 Code?

  • Malfunctioning fuel injector in Cylinder 5
  • Open  or shorted wiring to the injector
  • Bad PCM

What Are the Common Symptoms of the P0205 Code?

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How to Diagnose the P0205 Code

Although code P0205 is a generic powertrain code and may indicate similar triggers and symptoms, its diagnostic steps and repair procedures may vary per vehicle manufacturer.

If you’re not familiar with the process of diagnosing trouble codes on your own, it may be best to let a certified mechanic do the job for you.

Check out this video to learn more about what the diagnostic procedure might involve:

How to Fix the P0205 Code

Fixing a P0205 code can be confusing—especially if you don’t have the appropriate tools or experience for engine repair. We recommend bringing your vehicle to a certified mechanic to ensure that the right repair steps are followed for your vehicle. 

If you plan on doing the job yourself, make sure to refer to your vehicle’s repair manual or check out an online database for vehicle-specific repair information.

Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic. The accuracy and timeliness of the information may change from the time of publication.

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