The automobile fault code P11D0 indicates a problem with the Nitrogen Oxides (NOx) Sensor 2. 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 2, an open or shorted harness, or a poor electrical connection in the NOx Sensor 2 circuit.

To fix this issue, you should visually inspect the wiring harness and connectors for any damage.

Look 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 p11d0 fault code.

  • The symptoms of the automobile fault code p11d0 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p11d0 can be caused by a faulty NOx Sensor 2, an open or shorted harness, or a poor electrical connection in the circuit.

  • The fault code P11D0 can be caused by: a faulty Nitrogen Oxides (NOx) Sensor 2, an open or shorted Nitrogen Oxides Sensor 2 harness, or a poor electrical connection in the Nitrogen Oxides Sensor 2 circuit.

To fix the p11d0 fault code, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p11d0, 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.
  • 5.
  • Repair time estimation: 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code p11d0 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 p11d0 fault code.

The P11D0 fault code refers to the O2 signal circuit of NOx Sensor 2. This sensor is part of the selective catalytic reduction system used to 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 sensor contains a sensing cell, a pumping cell, and a heater. It measures the concentration of NOx in the exhaust gas by maintaining a constant reference voltage across the sensing cell.

The amount of current required to maintain this voltage is proportional to the NOx concentration. The ECM adjusts the amount of diesel exhaust fluid added based on the NOx levels. The P11D0 fault code is set when the ECM detects a fault in the NOx sensor circuitry or a performance fault in the NOx sensor for more than 2 seconds.

This fault is communicated to the ECM by the smart NOx sensor module over the serial data line.

It indicates a problem with the O2 signal circuit of NOx Sensor 2.

What are the possible causes for the automobile fault code p11d0?

If you see the engine light or service engine soon warning light on, the fault code P11D0 could be the culprit. This code is often caused by a faulty Nitrogen Oxides (NOx) Sensor 2, an open or shorted harness, or a poor electrical connection in the NOx Sensor 2 circuit. To fix this issue, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded pins in the connectors. Don’t forget to check the “Possible Causes” listed above for further troubleshooting.

How can I visually inspect the wiring harness and connectors to fix the p11d0 fault code?

If you’re dealing with the p11d0 fault code and your engine light is on, it’s time to visually inspect the wiring harness and connectors. This fault code is often caused by a faulty Nitrogen Oxides (NOx) Sensor 2 or issues with the sensor’s harness and circuit connection. To fix it, check for any open or shorted wires, damaged components, or broken, bent, pushed out, or corroded pins in the connectors. Take a close look and make sure everything is in good shape.

What should I look for when checking for damaged components and connector’s pins to resolve the p11d0 fault code?

When resolving the p11d0 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 that may be causing a poor electrical connection or an open or shorted circuit. Take the time to thoroughly examine the components and connectors to ensure a proper fix.

p11d0 error fault code explained

If your engine light is on or you see the service engine soon warning light, it could be due to a faulty Nitrogen Oxides (NOx) Sensor 2.

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

Also, check for broken, bent, pushed out, or corroded connector pins.

Scroll to Top