The Infiniti P1168 Code is an error code that is commonly related to the closed loop control function for bank 2. When this code appears, it indicates that the closed loop control function of the vehicle is not operating properly, even when it is being driven in the specified condition. This issue can occur due to a variety of reasons, including faulty harness or connectors, a circuit that is open or shorted, the Air Fuel Ratio (A/F) sensor 1 or 2, or the Air Fuel Ratio (A/F) sensor 1 or 2 heater. If a DTC P1148 or P1168 is displayed with another DTC for the A/F Sensor 2, it is important to perform a trouble diagnosis for the corresponding DTC. Fortunately, there is a service bulletin available to assist in diagnosing and resolving this issue.
Causes and Solutions of Infiniti P1168 Code
Cause | Solution |
---|---|
Faulty Harness or Connectors | Replace the faulty harness or connectors. |
A/F Sensor 1 or 2 Circuit Open or Shorted | Check the A/F Sensor 1 or 2 circuit for any open or shorted wires. |
A/F Sensor 1 or 2 | Replace the A/F Sensor 1 or 2. |
A/F Sensor 1 or 2 Heater | Replace the A/F Sensor 1 or 2 heater. |
Faulty Harness or Connectors
One of the most common causes of the Infiniti P1168 Code is faulty harness or connectors. If the harness or connectors are corroded or damaged, they can cause the vehicle to malfunction and display the P1168 Code. Fortunately, this issue can be resolved by replacing the faulty harness or connectors with new ones.
A/F Sensor 1 or 2 Circuit Open or Shorted
If the A/F Sensor 1 or 2 circuit is open or shorted, it can also cause the appearance of the P1168 Code. To diagnose this issue, the circuit should be checked for any open or shorted wires. If any are found, they should be repaired or replaced.
A/F Sensor 1 or 2
The A/F Sensor 1 or 2 can also cause the Infiniti P1168 Code to appear. If the sensor is malfunctioning, it should be replaced with a new one.
A/F Sensor 1 or 2 Heater
The A/F Sensor 1 or 2 Heater can also cause the P1168 Code to appear. If the heater is malfunctioning, it should be replaced with a new one.
Conclusion
The Infiniti P1168 Code is a common issue that can occur due to a variety of reasons. Fortunately, there is a service bulletin available to assist in diagnosing and resolving this issue. These solutions include replacing the faulty harness or connectors, checking the A/F Sensor 1 or 2 circuit for any open or shorted wires, replacing the A/F Sensor 1 or 2, and replacing the A/F Sensor 1 or 2 heater. It is important to take the necessary steps to diagnose and repair the Infiniti P1168 Code as soon as it appears.
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