[SOLVED] P11C5 Code: Fix Nox Sensor 1 Heater Ground Circuit Issue!

The automobile fault code P11C5 indicates a problem with the Nitrogen Oxides (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 sensor harness, or a poor electrical connection in the sensor circuit. To fix this issue, you should visually inspect the wiring harness and connectors, checking for any damage or corrosion.

Look out for broken, bent, pushed out, or corroded pins in the connectors.

The repair time for this issue is estimated to be around 1.0 hour. It is important to address this problem promptly to ensure optimal engine performance and emissions control.

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 p11c5 fault code.

  • The symptoms of the automobile fault code p11c5 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p11c5 can be caused by a faulty NOx sensor, an open or shorted sensor harness, or a poor electrical connection in the sensor circuit.

  • The fault code P11C5 can be caused by a faulty Nitrogen Oxides (NOx) sensor, an open or shorted harness for the Nitrogen Oxides sensor, or a poor electrical connection in the Nitrogen Oxides sensor circuit.

To fix the automobile fault code p11c5, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p11c5, 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 p11c5 are the estimated repair time and the hourly rate charged by auto repair shops. The estimated repair time for this fault code is 1.0 hour.

Auto repair shops typically charge between $75 and $150 per hour for their services. These factors will determine the overall cost of diagnosing and fixing the p11c5 fault code.

The P11C5 fault code refers to a problem with the ground circuit of the NOx Sensor 1 Heater. The NOx sensors are part of the selective catalytic reduction system, which helps reduce NOx emissions in diesel engines.

There are two NOx sensors, one upstream and one downstream of the selective catalytic reduction system.

They are connected to the control module via CAN and exchange information through it. The NOx sensors have a sensing cell, a pumping cell, and a heater. The sensing cell measures the concentration of NOx in the exhaust gas, while the pumping cell helps maintain a constant voltage in the sensing cell.

In the case of the P11C5 fault code, there is a problem with the ground circuit of the heater in NOx Sensor 1.

This can lead to issues with the performance of the sensor and may trigger a diagnostic trouble code (DTC) in the engine control module (ECM). If this fault code is detected, it is important to address the issue promptly to ensure proper functioning of the NOx sensor and the selective catalytic reduction system.

What are the possible causes for the automobile fault code p11c5?

If you see the engine light or service engine soon warning light on, the fault code P11C5 could be the culprit. This code is often caused by a faulty Nitrogen Oxides (NOx) sensor, an open or shorted sensor harness, or a poor electrical connection in the sensor circuit. To fix the issue, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. Don’t forget to check the possible causes mentioned above.

How can I visually inspect the wiring harness and connectors to fix the p11c5 fault code?

To fix the p11c5 fault code, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check if there are any broken, bent, pushed out, or corroded pins in the connectors. This can help identify any open or shorted circuits or poor electrical connections. Don’t forget to also check for a faulty Nitrogen Oxides (NOx) sensor as a possible cause.

What should I look for when checking for damaged components and connector’s pins to resolve the p11c5 fault code?

When resolving the p11c5 fault code, start by checking for damaged components and connector’s pins. This can be done by visually inspecting the related wiring harness and connectors. Look for any signs of damage such as broken, bent, pushed out, or corroded pins. By doing this, you can identify any issues with the Nitrogen Oxides (NOx) Sensor harness and circuit connections, which may be causing the fault code.

p11c5 error fault code explained

To fix the p11c5 fault code, start by visually inspecting the wiring harness and connectors. Look for any damage or corrosion. Check for broken, bent, or pushed out pins on the connectors.

Address any issues found to ensure proper electrical connection.

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