The automobile fault code P126C indicates a problem with the Nitrogen Oxide (NOx) Sensor. The most common symptom is the Engine Light being ON or the Service Engine Soon Warning Light.

The cause of this fault code can be a faulty NOx sensor, an open or shorted NOx sensor harness, or a poor electrical connection in the NOx sensor circuit. To fix this issue, you should visually inspect the wiring harness and connectors, checking for any damage or corrosion. Additionally, look for any broken, bent, pushed out, or corroded pins in the connectors.

The repair time for this issue is estimated to be around 1.0 hour. To interpret the fault code, refer to the “Possible Causes” listed above.

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

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p126c fault code.

  • The symptoms of the automobile fault code p126c include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p126c can be caused by a faulty NOx sensor, an open or shorted NOx sensor harness, or a poor electrical connection in the NOx sensor circuit.

  • The fault code P126C can be caused by a faulty Nitrogen Oxide (NOx) Sensor, an open or shorted Nitrogen Oxide (NOx) Sensor harness, or a poor electrical connection in the Nitrogen Oxide (NOx) Sensor circuit.

To fix fault code p126c, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p126c, follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • The estimated repair time for this fix is 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code p126c are the estimated repair time of 1.0 hour and the typical auto repair shop charges of $75 to $150 per hour.

The P126C fault code refers to a problem with the Nitrogen Oxide (NOx) Sensor in your vehicle. The Engine Control Module (ECM) is responsible for monitoring this sensor. When the NOx Sensor is not functioning according to the factory specifications, the ECM will set the P126C code.

This code specifically indicates an adjustment fault at the start of the charging phase. It is important to address this issue promptly to ensure optimal performance and emissions control in your vehicle.

What are the possible causes for the automobile fault code p126c?

If you’re seeing the engine light on or the service engine soon warning light, the fault code P126C could be the culprit. This code is often caused by a faulty Nitrogen Oxide (NOx) sensor, an open or shorted NOx sensor harness, or a poor electrical connection in the NOx sensor circuit. To fix this issue, start by visually inspecting the wiring harness and connectors. Look out for any damaged components and check for broken, bent, pushed out, or corroded connector pins. Don’t forget to consider the possible causes mentioned above.

How can I visually inspect the wiring harness and connectors to fix the p126c fault code?

If you’re dealing with the p126c fault code and your engine light is on, it’s time to take action. The culprit could be a faulty Nitrogen Oxide (NOx) Sensor or issues with the sensor’s wiring harness and connectors. To fix this, start by visually inspecting the wiring harness and connectors. Look for any signs of damage, such as broken or bent pins, corrosion, or components that are out of place. This simple step could be the key to resolving the issue and getting your engine running smoothly again.

What should I look for when checking for damaged components or corroded connector pins to resolve the p126c fault code?

When resolving the p126c fault code, start by checking for damaged components or corroded connector pins. This can be done by visually inspecting the related wiring harness and connectors. Look for any broken, bent, pushed out, or corroded pins. By addressing these issues, you can effectively fix the problem and prevent further complications.

p126c error fault code explained

If your engine light is on or you have a service engine soon warning, it could be due to a faulty Nitrogen Oxide (NOx) Sensor or issues with the sensor’s harness or circuit connection.

To fix this, visually inspect the wiring harness and connectors for any damage or corrosion.

Check for broken or bent pins as well.

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