P1168 2012 Nissan Altima Sedan Code - Closed Loop Control Function Bank 2
Quick Answer
The Engine Control Module (ECM) performs ON/OFF duty control of the Air Fuel Ratio (A/F) heater corresponding to the engine operating condition to keep the temperature of Air Fuel Ratio (A/F) element at the specified range. Common causes include Faulty Air Fuel Ratio Sensor 1 Bank 2, Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted, Air Fuel Ratio Sensor 1 Bank 2 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1168 2012 Nissan Altima Sedan indicates Closed Loop Control Function Bank 2.
- Common causes
- Common causes include Faulty Air Fuel Ratio Sensor 1 Bank 2, Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted, Air Fuel Ratio Sensor 1 Bank 2 circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1168 2012 Nissan Altima Sedan Description
What are the Possible Causes of the DTC P1168 2012 Nissan Altima Sedan?
- Faulty Air Fuel Ratio Sensor 1 Bank 2
- Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted
- Air Fuel Ratio Sensor 1 Bank 2 circuit poor electrical connection
How to Fix the DTC P1168 2012 Nissan Altima Sedan?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1168 2012 Nissan Altima Sedan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1168 2012 Nissan Altima Sedan Code
What does OBDII code P1168 mean on a 2012 Nissan Altima Sedan?
Code P1168 indicates a problem with the closed loop control function for Bank 2, meaning the engine is not properly switching between open and closed loop for fuel control on that side.
What are the symptoms of code P1168 on a 2012 Nissan Altima?
Common symptoms include poor fuel economy, rough idling, engine hesitation, reduced performance, and the illumination of the check engine light.
What causes code P1168 on a 2012 Nissan Altima?
Potential causes include a faulty oxygen sensor, a malfunctioning air/fuel ratio sensor, wiring issues, exhaust leaks, or a failing engine control module (ECM).
How do I diagnose code P1168 on a 2012 Nissan Altima?
Start by checking the wiring and connections for the oxygen sensor on Bank 2. Use a scan tool to monitor the air/fuel ratio sensor and ensure it is operating within normal parameters.
Can a bad oxygen sensor trigger code P1168?
Yes, a faulty oxygen sensor or air/fuel ratio sensor is one of the most common causes of this code.
Is it safe to drive with code P1168 on a 2012 Nissan Altima?
Driving with this code isn’t recommended, as it can lead to increased fuel consumption, poor performance, and potential engine damage over time.
How do I fix code P1168 on a 2012 Nissan Altima?
Repairs may include replacing the Bank 2 oxygen sensor, inspecting and repairing wiring or connectors, addressing exhaust leaks, or reprogramming the ECM if necessary.
How much does it cost to fix code P1168 on a 2012 Nissan Altima?
The cost depends on the specific repair. Replacing an oxygen sensor typically costs $150–$300, while more complex issues like ECM replacement can be significantly more expensive.
What tools are needed to diagnose and repair code P1168?
You’ll need an OBDII scan tool, a multimeter for testing wiring, and basic hand tools for replacing sensors or repairing connections.
Can code P1168 be caused by a dirty air filter?
While a dirty air filter can affect engine performance, it is not a direct cause of code P1168. This code specifically relates to the closed loop control function and the oxygen or air/fuel ratio sensor.
Discuss the causes and fixes for P1168 2012 Nissan Altima Sedan OBDII Code
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