The P248B automobile fault code indicates a problem with the Reductant Line Heater system. This can cause the engine light to turn on, indicating a need for service.

The cause of this issue could be a faulty Reductant Line Heater, an open or shorted harness, poor electrical connection, or a faulty Reductant Pump and Sensor Assembly. The importance of repairing this issue lies in the fact that it can lead to decreased fuel efficiency and increased emissions.

The repair difficulty is moderate, with a repair time of 1.0. 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 pins.

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 p248b fault code. Here are the symptoms to look out for:

  • The P248B fault code in automobiles 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, and rough idling.
  • Additionally, the vehicle may experience difficulty starting or may stall while driving.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle and ensure safe driving conditions.

The automobile fault code p248b can be caused by various factors, including faulty reductant components and poor electrical connections.

  • The automobile fault code P248B can be caused by a faulty Reductant Line Heater, an open or shorted Reductant Line Heater harness, a poor electrical connection in the Reductant Line Heater circuit, a faulty Reductant Pump and Sensor Assembly, and a faulty Reductant Control Module.

To fix the p248b automobile fault code, check the possible causes and inspect related components for damage or corrosion.

  • To fix the automobile fault code p248b, you need to 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.
  • This fix will take an estimated repair time of 1.0 hour.

The automobile fault code P248B 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 diagnosis and fixing the P248B 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 P248B fault code is related to the reductant heater in the automobile. Reductant can freeze at temperatures below -11°C (12°F), so there are two reductant heaters in the reductant tank.

The Engine Control Module (ECM) monitors the reductant temperature and activates a defrost strategy if it detects that the reductant may be frozen. The P248B code is set when there is a greater than 3 V difference between battery voltage and reductant tank heater voltage.

What are the possible causes of the automobile fault code P248B?

If you see the engine light on or the service engine soon warning light, it could be due to the P248B fault code. This code is usually caused by a faulty reductant line heater, an open or shorted reductant line heater harness, a poor electrical connection in the reductant line heater circuit, a faulty reductant pump and sensor assembly, 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’s pins.

How can I fix the P248B fault code in my automobile?

If you’re experiencing the P248B fault code in your automobile, which is indicated by the engine light being on, it could be due to a faulty Reductant Line Heater, Reductant Line Heater harness being open or shorted, poor electrical connection in the Reductant Line Heater circuit, a faulty Reductant Pump and Sensor Assembly, or a faulty Reductant Control Module. To fix this issue, you should visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

What should I visually inspect to identify the cause of the P248B fault code?

If you’re experiencing the P248B fault code, indicated by the engine light or service engine soon warning light turning on, you should visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. This fault code can be caused by a faulty reductant line heater, an open or shorted reductant line heater harness, a poor electrical connection in the reductant line heater circuit, a faulty reductant pump and sensor assembly, or a faulty reductant control module. Check the “Possible Causes” listed above for a solution.

p248b error fault code explained

If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to a faulty Reductant Line Heater, harness, or circuit. Check for damaged components and inspect the wiring harness and connectors for any issues.

Also, consider checking the Reductant Pump and Sensor Assembly and the Reductant Control Module.

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