If you’re experiencing an illuminated Engine Light or Service Engine Soon Warning Light, it could be due to the P205B fault code.

This code indicates a problem with the Reductant Pump and Sensor Assembly, which is responsible for controlling the amount of urea that enters the exhaust system to reduce emissions.

The cause of this fault code could be a faulty Reductant Pump and Sensor Assembly, an open or shorted harness, poor electrical connection, or a faulty Reductant Control Module. The repair process involves visually inspecting the wiring harness and connectors, checking for damaged components, and looking for broken, bent, pushed out, or corroded connector’s pins. The repair time for this issue is estimated at 1.0, and it’s important to address this issue promptly to avoid further damage to your vehicle.

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 p205b fault code. Here are the symptoms to look out for:

  • The P205B 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, decreased fuel efficiency, rough idling, and difficulty starting the engine.
  • Additionally, the vehicle may experience misfires, stalling, or hesitation during acceleration.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle and ensure safe driving conditions.

The automobile fault code p205b can be caused by a faulty reductant pump and sensor assembly, open or shorted harness, poor electrical connection, or a faulty reductant control module.

  • The automobile fault code P205B can be caused by a faulty Reductant Pump and Sensor Assembly.
  • It can also be caused by an open or shorted Reductant Pump and Sensor Assembly harness.
  • Another cause can be a poor electrical connection in the Reductant Pump and Sensor Assembly circuit.
  • Lastly, a faulty Reductant Control Module can also trigger this fault code.

Below are some possible fixes for the automobile fault code p205b, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code p205b, you need to check the possible causes listed above.
  • Visually inspect the related wiring harness and connectors for any damage.
  • Look for broken, bent, pushed out, or corroded connector’s pins.
  • Estimated repair time for this fix is 1.0 hour.

The automobile fault code P205B can be diagnosed and fixed within an estimated repair time of 1.0 hour. The cost of repair is influenced by the repair time, which is commonly charged between $75 and $150 per hour by most auto repair shops. Therefore, the total cost of diagnosis and fixing the P205B fault code will depend on the hourly rate charged by the repair shop and the estimated repair time required to fix the issue.

The P205B code is related to the Reductant Tank Temperature Sensor. This sensor measures the temperature inside the reductant tank.

The Reductant Control Module acquires the sensor signal and sends it to the Engine Control Module (ECM) via serial data. The DTC will be set when the difference between reductant temperature sensor signal and exhaust gas temperature sensor signals is outside a calibrated range. The code indicates that there is an issue with the Reductant Tank Temperature Sensor Circuit RangePerformance.

What are the possible causes of the P205B fault code and how can they be checked?

If the engine light is on and the P205B fault code is detected, it could be due to a faulty Reductant Pump and Sensor Assembly, an open or shorted harness, poor electrical connection, or a faulty Reductant Control Module. To fix the issue, visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

How does a faulty Reductant Pump and Sensor Assembly affect the engine and trigger the P205B fault code?

A faulty Reductant Pump and Sensor Assembly can trigger the P205B fault code and cause the engine light to turn on. This can be caused by a faulty assembly, an open or shorted harness, poor electrical connection, or a faulty Reductant Control Module. To fix the issue, one should visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

What steps should be taken to fix the P205B fault code and prevent it from recurring in the future?

To fix the P205B fault code, first check the possible causes listed above. Visually inspect the related wiring harness and connectors for damage or corrosion. Look for broken, bent, pushed out, or corroded connector pins. Once identified, repair or replace the faulty Reductant Pump and Sensor Assembly, harness, or Reductant Control Module as needed.

p205b error fault code explained

If your engine light is on and you have a P205B fault code, it may be due to a faulty Reductant Pump and Sensor Assembly, an open or shorted harness, poor electrical connection, or a faulty Reductant Control Module.

To fix it, visually inspect the wiring harness and connectors for damage and check for broken, bent, pushed out, or corroded connector pins.

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