[SOLVED] P1168 Code: Closed Loop Control Function Bank 2 – Causes And Fixes

The automobile fault code P1168 indicates a problem with the Air Fuel Ratio Sensor 1 Bank 2 or the Heated Oxygen Sensor 1 Bank 2, depending on the model year.

The most common symptom is the Engine Light being ON or the Service Engine Soon Warning Light. The cause could be a faulty sensor, an open or shorted harness, or a poor electrical connection.

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

Check for broken, bent, pushed out, or corroded pins in the connectors. The repair time is estimated to be 1.0.

To interpret the fault code, check the “Possible Causes” listed above and follow the recommended steps for inspection and repair.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level6.67 (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 p1168 fault code.

  • The symptoms of the automobile fault code p1168 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p1168 can be caused by a faulty air fuel ratio sensor, open or shorted sensor harness, or poor electrical connection in the sensor circuit. For models before 2005, a faulty heated oxygen sensor or issues with the sensor harness or circuit can also trigger this fault code.

  • The fault code P1168 can be caused by the following: – Faulty Air Fuel Ratio Sensor 1 Bank 2.
  • – Open or shorted harness of Air Fuel Ratio Sensor 1 Bank 2.
  • – Poor electrical connection in the circuit of Air Fuel Ratio Sensor 1 Bank 2.
  • For models before 2005, the additional causes are: – Faulty Heated Oxygen Sensor 1 Bank 2.
  • – Open or shorted harness of Heated Oxygen Sensor 1 Bank 2.
  • – Poor electrical connection in the circuit of Heated Oxygen Sensor 1 Bank 2.

To fix the p1168 fault code, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p1168, 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 factors influencing the diagnosis and fixing cost of the automobile fault code p1168 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 p1168 fault code.

The P1168 fault code refers to the closed loop control function of Bank 2 in the engine.

The Engine Control Module (ECM) is responsible for controlling the ONOFF duty of the Air Fuel Ratio (AF)Heated Oxygen Sensor 1 heater. This control is based on the engine’s operating condition, ensuring that the temperature of the Air Fuel Ratio (AF)Heated Oxygen Sensor 1 element stays within the specified range.

In simpler terms, the P1168 code indicates an issue with the closed loop control function on Bank 2 of the engine. This control function is crucial for maintaining the proper temperature of the Air Fuel Ratio (AF)Heated Oxygen Sensor 1 element.

If this code appears, it means there may be a problem with the ECM’s ability to regulate the heater’s ONOFF duty accurately.

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

What are the possible causes of the P1168 fault code in automobiles?

If you’re experiencing the P1168 fault code in your automobile, you may notice that the Engine Light is ON or the Service Engine Soon Warning Light is illuminated. This code can be caused by a few different factors. For models before 2005, it could be due to a faulty Heated Oxygen Sensor 1 Bank 2, an open or shorted harness, or a poor electrical connection in the circuit. For newer models, the cause could be a faulty Air Fuel Ratio Sensor 1 Bank 2, an open or shorted harness, or a poor electrical connection in the circuit. To fix this issue, it’s important 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.

How can I visually inspect the wiring harness and connectors to fix the P1168 fault code?

If you’re dealing with the P1168 fault code and your engine light is on, it’s time to take action. The most common cause is a faulty Air Fuel Ratio Sensor 1 Bank 2, but it could also be due to an open or shorted harness or a poor electrical connection. For models before 2005, a faulty Heated Oxygen Sensor 1 Bank 2 could be the culprit. To fix the issue, start by visually inspecting the wiring harness and connectors. Look for any signs of damage, such as broken or corroded pins. Don’t forget to check for any bent or pushed out components.

What should I look for when checking for damaged components and connector’s pins to resolve the P1168 fault code?

If you’re dealing with a P1168 fault code, start by checking for damaged components and connector’s pins. This code can be caused by a faulty Air Fuel Ratio Sensor 1 Bank 2, an open or shorted harness, or a poor electrical connection. For models before 2005, it could also be due to a faulty Heated Oxygen Sensor 1 Bank 2. To resolve the issue, visually inspect the wiring harness and connectors, and look for any signs of damage. Pay close attention to broken, bent, pushed out, or corroded connector’s pins.

p1168 error fault code explained

If you’re experiencing the Engine Light ON or Service Engine Soon Warning Light, the P1168 fault code may be the culprit. This code is typically caused by a faulty Air Fuel Ratio Sensor 1 Bank 2 or issues with the sensor’s harness or electrical connection. For models before 2005, it could also be related to a faulty Heated Oxygen Sensor 1 Bank 2.

To fix the issue, visually inspect the wiring harness and connectors, checking for any damage or corrosion. Look out for broken, bent, pushed out, or corroded connector pins.

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