[SOLVED] U2628 Code: Fixing Lost Communication With Reductant Sensor

The automobile fault code U2628 indicates a problem with the Reductant Concentration Sensor or its related components.

The most common symptom is the illumination of the Engine Light or Service Engine Soon Warning Light. The cause of this fault code could be a faulty Reductant Concentration Sensor, an open or shorted harness, or a poor electrical connection.

The repair importance is high as it affects the vehicle’s emissions system.

The difficulty level of the repair is moderate, and it takes approximately 1.0 hour to fix.

To interpret the fault code, one needs to check the possible causes listed above and visually inspect the related wiring harness and connectors for any damage or corrosion.

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

If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to the u2628 fault code. Here are the symptoms to look out for:

  • The automobile fault code U2628 has the following symptoms: Engine Light ON (or Service Engine Soon Warning Light).

The automobile fault code u2628 can be caused by a faulty sensor, poor electrical connection, or a malfunctioning control module.

  • The automobile fault code U2628 can be caused by a faulty Reductant Concentration Sensor.
  • It can also be caused by an open or shorted Reductant Concentration Sensor harness.
  • Another cause can be a poor electrical connection in the Reductant Concentration Sensor circuit.
  • Lastly, a faulty Reductant Control Module can also trigger this fault code.

To fix the automobile fault code u2628, check the possible causes and inspect the related wiring harness, connectors, and components for damage.

  • To fix the automobile fault code u2628, first, check the possible causes listed above.
  • Then, visually inspect the related wiring harness and connectors.
  • Look for damaged components and check for 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 U2628 has an estimated repair time of 1.0 hour.

The cost of fixing this fault code is influenced by the repair time. Most auto repair shops charge between $75 and $150 per hour for their services.

Therefore, the fixing cost of U2628 will range between $75 and $150, depending on the repair time required. These factors should be considered when estimating the cost of fixing the U2628 fault code.

The U2628 code is related to the reductant control module in a vehicle. It indicates that there is a communication problem between the reductant control module and the reductant concentration sensor.

This fault code is triggered when the reductant control module does not receive a periodic message from the reductant concentration sensor. This can cause issues with the vehicle’s emissions system and may result in decreased fuel efficiency.

It is important to have this issue diagnosed and repaired by a qualified mechanic to ensure proper vehicle operation.

What are the possible causes of the u2628 automobile fault code?

If you see the engine light on or the service engine soon warning light, it could be due to the u2628 automobile fault code. This code is caused by a faulty reductant concentration sensor, an open or shorted sensor harness, poor electrical connection in the sensor circuit, or a faulty reductant control module. To fix this issue, you should check the possible causes listed above, visually inspect the related wiring harness and connectors, and look for damaged components or broken, bent, pushed out, or corroded connector pins.

How can I visually inspect the wiring harness and connectors related to the Reductant Concentration Sensor?

If you’re experiencing an illuminated Engine Light or Service Engine Soon Warning Light, it could be due to a faulty Reductant Concentration Sensor or related wiring issues. To visually inspect the wiring harness and connectors, check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. This will help identify if the Reductant Concentration Sensor harness is open or shorted, or if there is a poor electrical connection in the circuit. Don’t forget to also check the Reductant Control Module for faults.

What are the steps to take if I find damaged components or broken, bent, pushed out, or corroded connector’s pins when checking the u2628 fault code?

If you find damaged components or broken, bent, pushed out, or corroded connector’s pins when checking the u2628 fault code, follow these steps: Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins. If you find any of these issues, replace or repair the damaged components or connector pins.

u2628 error fault code explained

If your engine light is on, it could be due to a faulty Reductant Concentration Sensor or Control Module.

Check the wiring harness and connectors for damage or corrosion.

Look for broken, bent, or pushed out pins.

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