The automobile fault code P116B 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, it is recommended to 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 fault code 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 p116b fault code.

  • The symptoms of the automobile fault code p116b include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p116b 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 P116B can be caused by a faulty Nitrogen Oxides (NOx) sensor, an open or shorted Nitrogen Oxides Sensor harness, or a poor electrical connection in the Nitrogen Oxides Sensor circuit.

To fix the automobile fault code p116b, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p116b, first, check the possible causes mentioned above.
  • Then, visually inspect the wiring harness and connectors related to the issue.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins.
  • The estimated repair time for this fix is 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code p116b are the estimated repair time of 1.0 hour and the typical hourly rate charged by auto repair shops, which ranges between $75 and $150.

The P116B fault code refers to the O2 signal circuit having a low voltage in NOx Sensor 1. NOx sensors are 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. These sensors 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 sensors maintain a constant reference voltage across the sensing cell and control the pump current through the pumping cell. The amount of current required is proportional to the concentration of NOx in the exhaust. The ECM adjusts the amount of diesel exhaust fluid based on the NOx levels.

The P116B code is set when a fault or performance issue is detected in the NOx sensor circuitry or sensor for more than 2 seconds.

What are the possible causes for the automobile fault code p116b?

If you see the engine light or service engine soon warning light on, the fault code P116B 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 listed above for a more comprehensive solution.

How can I visually inspect the wiring harness and connectors to fix the p116b fault code?

If you’re dealing with the p116b fault code and your engine light is on, it’s time to take a closer look at the wiring harness and connectors. The most likely cause of this issue is a faulty Nitrogen Oxides (NOx) Sensor or a problem with the sensor’s circuit. To fix it, visually inspect the wiring harness and connectors for any signs of damage or poor electrical connections. Keep an eye out for broken, bent, pushed out, or corroded pins on the connectors. Don’t forget to check for any other possible causes as well.

What should I look for when checking for damaged components or corroded connector pins to resolve the p116b fault code?

When resolving the p116b 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 on the connectors. By addressing these issues, you can effectively fix the fault and prevent further problems.

p116b error fault code explained

To fix the P116B 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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