The Infiniti Code P1168 is related to a diagnostic trouble code (DTC) that indicates a closed loop control function for Bank 2 does not operate even when the vehicle is being driven in the specified condition. This code is associated with a wide-range of issues, ranging from a faulty harness or connector to a malfunctioning air fuel ratio (A/F) sensor. In order to resolve this issue, a thorough diagnosis of the underlying causes must be conducted. This article discusses the causes and solutions to this issue, outlining the various components and services that must be addressed in order to effectively fix the problem.
Causes and Solutions for Infiniti Code P1168
| Cause | Solution |
|---|---|
| Faulty harness or connector | Replace broken or worn wires and connectors |
| Air fuel ratio (A/F) sensor 1 or 2 circuit is open or shorted | Check wiring for any issues and replace the A/F sensor if necessary |
| Air fuel ratio (A/F) sensor 1 or 2 | Inspect and repair any malfunctions |
| Air fuel ratio (A/F) sensor 1 or 2 heater | Replace the heater component if damaged |
When the Infiniti Code P1168 is detected, it is important to diagnose the underlying cause in order to properly resolve the issue. This code is related to a closed loop control function for Bank 2, which does not operate even when the vehicle is being driven in the specified condition. Several components may be at fault, such as a faulty harness or connector, an open or shorted air fuel ratio (A/F) sensor 1 or 2 circuit, the A/F sensor 1 or 2 itself, or the A/F sensor 1 or 2 heater. Each component must be thoroughly inspected and repaired or replaced in order to successfully fix the issue. The related Service Bulletin, ITB11-054A, provides further insight into this issue.
Faulty Harness or Connector
When an Infiniti Code P1168 is detected, the first component to be inspected is the harness or connector, as this may be the cause of the problem. If the wiring is found to be broken or worn, it must be replaced in order to resolve the issue.
Air Fuel Ratio (A/F) Sensor 1 or 2 Circuit
The air fuel ratio (A/F) sensor 1 or 2 circuit must also be checked for any issues, as this may be the source of the problem. If the wiring is found to be open or shorted, it must be replaced in order to fix the issue.
Air Fuel Ratio (A/F) Sensor 1 or 2
The A/F sensor 1 or 2 may also be malfunctioning, and therefore must be inspected and repaired if necessary. If the sensor is found to be damaged, it must be replaced in order to resolve the issue.
Air Fuel Ratio (A/F) Sensor 1 or 2 Heater
The A/F sensor 1 or 2 heater may also be damaged, and therefore must be inspected and replaced if necessary. If the heater is found to be damaged, it must be replaced in order to fix the issue.
Conclusion
The Infiniti Code P1168 is associated with a wide range of issues, and in order to effectively fix the problem, a thorough diagnosis and repair of the underlying causes must be conducted. Several components may be at fault, such as a faulty harness or connector, an open or shorted air fuel ratio (A/F) sensor 1 or 2 circuit, the A/F sensor 1 or 2 itself, or the A/F sensor 1 or 2 heater. It is important to inspect and repair or replace each component in order to successfully resolve the Infiniti Code P1168 issue.
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