[SOLVED] P112C Code: Oxygen Sensor Circuit/Open – Fix And Troubleshooting Guide

The automobile fault code P112C indicates a problem with the Oxygen (O2) Sensor Bank 1 Sensor 1. This can be identified by the Engine Light or Service Engine Soon Warning Light being illuminated.

The cause of this fault code could be a faulty O2 sensor, an open or shorted O2 sensor harness, or a poor electrical connection in the O2 sensor circuit. To fix this issue, it is recommended to 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.

It is important to address this fault code promptly to ensure optimal engine performance and fuel efficiency.

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 p112c fault code.

  • The symptoms of the automobile fault code P112C include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p112c can be caused by a faulty Oxygen (O2) Sensor Bank 1 Sensor 1, an open or shorted O2 Sensor Bank 1 Sensor 1 harness, or a poor electrical connection in the O2 Sensor Bank 1 Sensor 1 circuit.

  • The fault code P112C can be caused by the following: a faulty Oxygen (O2) Sensor Bank 1 Sensor 1, an open or shorted O2 Sensor Bank 1 Sensor 1 harness, or a poor electrical connection in the O2 Sensor Bank 1 Sensor 1 circuit.

To fix the automobile fault code p112c, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p112c, start by checking 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.
  • This fix is estimated to take approximately 1.0 hour.

The automobile fault code P112C can be diagnosed and fixed within an estimated repair time of 1.0 hour.

The cost of the repair will depend on the hourly rate charged by the auto repair shop, which typically ranges between $75 and $150 per hour.

The P112C fault code refers to a problem with the Oxygen (O2) Sensor Bank 1 Sensor 1. This sensor is monitored by the Engine Control Module (ECM) in your car. When the sensor is not functioning according to the factory specifications, the ECM will set the P112C code.

The P112C code specifically indicates an issue with the control circuit or an open circuit in the Oxygen Sensor’s negative or positive current in Bank 1. This means that there is a problem with the electrical connection or wiring related to the Oxygen Sensor in the first bank of your vehicle’s engine.

If you encounter the P112C fault code, it is important to have it addressed promptly. Ignoring this issue can lead to decreased fuel efficiency, poor engine performance, and potential damage to other components. It is recommended to consult a qualified mechanic or technician to diagnose and fix the problem to ensure your vehicle operates optimally.

How can I determine if the engine light is on due to fault code p112c?

If your engine light is on and you suspect it’s due to fault code P112C, there are a few steps you can take to determine the cause. First, check for the symptoms of an engine light being on. Then, consider the possible causes, which include a faulty oxygen (O2) sensor in Bank 1 Sensor 1, an open or shorted O2 sensor harness, or a poor electrical connection in the O2 sensor circuit. To fix the issue, 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.

What are the possible causes of fault code p112c?

If you’re seeing the engine light or service engine soon warning light, the fault code P112C could be the culprit. This code is often caused by a faulty oxygen (O2) sensor in bank 1 sensor 1. It could also be due to an open or shorted O2 sensor harness, or a poor electrical connection in the 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.

What steps should I take to fix fault code p112c?

To fix fault code p112c, start by visually inspecting the wiring harness and connectors related to the O2 Sensor Bank 1 Sensor 1. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. This will help identify any issues with the O2 sensor or its circuit.

p112c error fault code explained

If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, it could be due to a faulty Oxygen (O2) Sensor Bank 1 Sensor 1.

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

Look out for broken or bent pins on the connectors.

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