P0122 2011 Nissan Altima Sedan Code - Throttle Position Sensor/Switch 'A' Circuit Low Input
Quick Answer
The Throttle Pedal Position (TPP) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor 2, Throttle position sensor 2 harness is open or shorted, Throttle position sensor 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
- P0122 2011 Nissan Altima Sedan indicates Throttle Position Sensor/Switch 'A' Circuit Low Input.
- Common causes
- Common causes include Faulty throttle position sensor 2, Throttle position sensor 2 harness is open or shorted, Throttle position sensor 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 P0122 2011 Nissan Altima Sedan Description
Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.
What are the Possible Causes of the DTC P0122 2011 Nissan Altima Sedan?
- Faulty throttle position sensor 2
- Throttle position sensor 2 harness is open or shorted
- Throttle position sensor 2 circuit poor electrical connection
How to Fix the DTC P0122 2011 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 P0122 2011 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 P0122 2011 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P0122 in a 2011 Nissan Altima Sedan?
- Common symptoms include poor acceleration, stalling, rough idling, and the vehicle may not respond properly to the gas pedal.
2. What does the OBDII code P0122 'Throttle Position Sensor/Switch 'A' Circuit Low Input' indicate in a 2011 Nissan Altima Sedan?
- This code indicates that the engine control module has detected a low input signal from the throttle position sensor or switch.
3. What are the possible causes of OBDII code P0122 in a 2011 Nissan Altima Sedan?
- Possible causes include a faulty throttle position sensor, damaged wiring or connectors in the sensor circuit, or a problem with the engine control module.
4. How can I diagnose the cause of OBDII code P0122 in my 2011 Nissan Altima Sedan?
- You can use a scan tool to read the code and check the throttle position sensor's voltage readings. Inspect the sensor, wiring, and connectors for any damage.
5. Can I still drive my 2011 Nissan Altima Sedan with OBDII code P0122?
- It is not recommended to drive the vehicle with this code as it can lead to performance issues and potential safety hazards. It is best to address the issue promptly.
6. How can I repair OBDII code P0122 in a 2011 Nissan Altima Sedan?
- Repair options include replacing the throttle position sensor, repairing any damaged wiring or connectors, or reprogramming the engine control module if necessary.
7. Is it safe to reset the OBDII code P0122 in my 2011 Nissan Altima Sedan without fixing the underlying issue?
- While clearing the code may temporarily remove the warning light, the underlying problem will persist, potentially leading to further damage. It's best to address the root cause first.
8. How do I reset the OBDII code P0122 in my 2011 Nissan Altima Sedan after making the necessary repairs?
- You can reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes. Be sure to follow proper procedures to avoid causing any damage.
9. Can a dirty throttle body cause OBDII code P0122 in a 2011 Nissan Altima Sedan?
- While a dirty throttle body can affect engine performance, it is not a direct cause of P0122. Focus on checking the throttle position sensor and related components first.
10. How often should I check the throttle position sensor in my 2011 Nissan Altima Sedan to prevent OBDII code P0122?
- It's recommended to include the throttle position sensor in your regular maintenance checks to ensure it is functioning properly and prevent issues like code P0122 from occurring.
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