The P2055 fault code in automobiles indicates a problem with the Reductant Injection Valve system. The most common symptom is the illumination of the Engine Light or Service Engine Soon Warning Light.

The cause of this issue could be a faulty Reductant Injection Valve, an open or shorted harness, or a poor electrical connection.

It is important to address this issue promptly as it can lead to reduced fuel efficiency and increased emissions. The repair process involves visually inspecting the wiring harness and connectors for any damage or corrosion. The difficulty level of this repair is considered to be moderate, and it typically takes around 1.0 hour to fix.

To interpret the fault code, it is recommended to check the “Possible Causes” listed above and visually inspect the related components.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

If you notice the Engine Light ON or Service Engine Soon Warning Light, it could be a sign of p2055 fault code. Here are the symptoms to look out for:

  • The P2055 fault code in an automobile can cause several symptoms, including the engine light turning on or the service engine soon warning light appearing.
  • Other symptoms may include reduced engine power, poor acceleration, rough idling, stalling, and increased fuel consumption.
  • Additionally, the vehicle may emit black smoke from the exhaust, and there may be a noticeable decrease in overall engine performance.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle.

The automobile fault code p2055 can be caused by a faulty reductant injection valve, open or shorted harness, or poor electrical connection.

  • The automobile fault code p2055 can be caused by a faulty Reductant Injection Valve.
  • It can also be caused by an open or shorted Reductant Injection Valve harness.
  • Additionally, a poor electrical connection in the Reductant Injection Valve circuit can also trigger this fault code.

To fix the p2055 automobile fault code, check the possible causes and inspect the related wiring harness and connectors for any damage or corrosion.

  • To fix the automobile fault code p2055, you need to check the possible causes listed above.
  • Visually inspect the related wiring harness and connectors.
  • Look for damaged components and broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The automobile fault code P2055 can be diagnosed and fixed within an estimated repair time of 1.0 hour. The cost of repair is influenced by the hourly rate charged by the auto repair shop, which typically ranges between $75 and $150 per hour.

Therefore, the total cost of diagnosing and fixing the P2055 fault code will depend on the hourly rate charged by the auto repair shop and the estimated repair time required to fix the issue.

The P2055 fault code indicates a problem with the Reductant Injection Valve Circuit High Bank 1 U. The Reductant Dosing Valve is responsible for metering and atomizing the reductant liquid before it is mixed with the exhaust gas.

The valve’s normal operating frequency is between 3 Hz and .3 Hz, and it contains heat sink fins to keep the injector and reductant below the boiling point.

If the sensed temperature is nearing the maximum temperature threshold, reductant spray will be increased in quantity to actively cool the valve.

What are the possible causes of the P2055 automobile fault code?

If you see the engine light on or the service engine soon warning light, it could be due to the P2055 fault code. This code is caused by a faulty reductant injection valve, an open or shorted valve harness, or a poor electrical connection in the valve circuit. To fix this issue, you should visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector pins.

How can I visually inspect the wiring harness and connectors related to the Reductant Injection Valve?

If you’re experiencing an Engine Light ON or Service Engine Soon Warning Light, it could be due to a faulty Reductant Injection Valve or a poor electrical connection. To fix this issue, you should visually inspect the related wiring harness and connectors. Check for any damaged components and look for broken, bent, pushed out, or corroded connector’s pins. This will help you identify any open or shorted circuits and ensure a proper electrical connection.

What should I do if I find damaged components or broken, bent, pushed out, or corroded connector’s pins during the inspection for the P2055 fault code?

If you find damaged components or broken, bent, pushed out, or corroded connector’s pins during the inspection for the P2055 fault code, you should visually inspect the related wiring harness and connectors. Check for any possible causes listed above and fix them accordingly.

p2055 error fault code explained

If your engine light is on, it could be due to a faulty Reductant Injection Valve or poor electrical connection.

Check the wiring harness and connectors for damage or corrosion.

Look for broken, bent, or pushed out pins.

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