P0122 2009 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 2009 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 2009 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 2009 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 2009 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 2009 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 2009 Nissan Altima Sedan Code
1. What does OBDII code P0122 mean for a 2009 Nissan Altima Sedan?
The code P0122 indicates a potential issue with the Throttle Position Sensor/Switch 'A' Circuit, specifically a low input signal.
2. What are the common symptoms of OBDII code P0122 in a 2009 Nissan Altima Sedan?
Common symptoms include poor acceleration, rough idling, stalling, decreased fuel efficiency, and the Check Engine light illuminating on the dashboard.
3. What are the possible causes of OBDII code P0122 in a 2009 Nissan Altima Sedan?
Potential causes include a faulty throttle position sensor, damaged wiring or connectors in the sensor circuit, a disconnected or damaged throttle position sensor, or issues with the engine control module.
4. How can I diagnose the Throttle Position Sensor/Switch 'A' Circuit issue causing OBDII code P0122 in my 2009 Nissan Altima Sedan?
Diagnosing the problem involves using a scan tool to read the code, testing the throttle position sensor's voltage output, inspecting the sensor's wiring and connectors for any damage, and checking for any loose connections.
5. Can I still drive my 2009 Nissan Altima Sedan with OBDII code P0122 present?
It is not recommended to continue driving with the code present, as it can lead to further damage to the vehicle and potentially unsafe driving conditions. It's best to address the issue promptly.
6. How can I repair OBDII code P0122 in my 2009 Nissan Altima Sedan?
Repair options include replacing the throttle position sensor, repairing any damaged wiring or connectors, ensuring proper sensor installation, and clearing the code with a scan tool.
7. Are there any DIY tips for addressing OBDII code P0122 in a 2009 Nissan Altima Sedan?
While some basic troubleshooting steps can be done by DIY enthusiasts, it is recommended to consult a professional mechanic for accurate diagnosis and repair to ensure the issue is resolved effectively.
8. How much does it typically cost to repair OBDII code P0122 in a 2009 Nissan Altima Sedan?
The cost of repairing this code can vary depending on the specific cause of the issue, parts needed for replacement, and labor costs. It's advisable to obtain quotes from different automotive repair shops for an accurate estimate.
9. Can OBDII code P0122 in a 2009 Nissan Altima Sedan cause further damage if left unrepaired?
Continuing to drive with this code unresolved can potentially lead to reduced engine performance, increased fuel consumption, and other related issues. It's best to address the problem promptly to avoid further damage.
10. How long does it usually take to repair OBDII code P0122 in a 2009 Nissan Altima Sedan?
The repair time can vary based on the specific cause of the issue, availability of parts, and the workload of the mechanic. In general, the repair can range from a few hours to a full day, depending on the complexity of the problem.
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