P0122 2009 Nissan Sentra 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 Sentra 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 Sentra 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 Sentra?
- 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 Sentra?
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 Sentra 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.
Need more information about the P0122 2009 Nissan Sentra code?
Need more information on how to fix the P0122 2009 Nissan Sentra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0122 2009 Nissan Sentra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0122 2009 Nissan Sentra Code
1. What are the common symptoms of OBDII code P0122 on a 2009 Nissan Sentra?
The common symptoms of OBDII code P0122 on a 2009 Nissan Sentra include poor acceleration, rough idling, stalling, and in some cases, the vehicle may go into limp mode.
2. What does the OBDII code P0122 on a 2009 Nissan Sentra indicate?
OBDII code P0122 indicates a low input signal from the throttle position sensor or switch 'A' circuit on a 2009 Nissan Sentra.
3. What are the possible causes of OBDII code P0122 on a 2009 Nissan Sentra?
Possible causes of OBDII code P0122 on a 2009 Nissan Sentra include a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, or a problem with the engine control module.
4. How can I diagnose the OBDII code P0122 on a 2009 Nissan Sentra?
To diagnose OBDII code P0122 on a 2009 Nissan Sentra, you can use a scan tool to check for any additional trouble codes, inspect the throttle position sensor and its wiring for damage, and test the sensor's voltage output.
5. Can I drive my 2009 Nissan Sentra with OBDII code P0122?
It is not recommended to drive your 2009 Nissan Sentra with OBDII code P0122, as it can lead to poor engine performance, stalling, or other safety issues. It is best to address the issue promptly.
6. How can I repair OBDII code P0122 on a 2009 Nissan Sentra?
To repair OBDII code P0122 on a 2009 Nissan Sentra, you may need to replace the throttle position sensor, repair damaged wiring or connectors, or reprogram the engine control module if necessary.
7. Is it possible to reset OBDII code P0122 on a 2009 Nissan Sentra?
Resetting OBDII code P0122 on a 2009 Nissan Sentra may temporarily clear the code, but it is essential to address the underlying issue causing the code to prevent it from reoccurring.
8. Can a DIY enthusiast fix OBDII code P0122 on a 2009 Nissan Sentra?
A DIY enthusiast may be able to fix OBDII code P0122 on a 2009 Nissan Sentra if they have the necessary tools, knowledge, and skills to diagnose and repair the issue with the throttle position sensor or its circuit.
9. How much does it cost to repair OBDII code P0122 on a 2009 Nissan Sentra?
The cost to repair OBDII code P0122 on a 2009 Nissan Sentra can vary depending on the root cause of the issue, parts needed, and labor costs. It is recommended to consult a professional mechanic for an accurate estimate.
10. Will OBDII code P0122 on a 2009 Nissan Sentra affect fuel efficiency?
Yes, OBDII code P0122 on a 2009 Nissan Sentra can affect fuel efficiency due to improper throttle position readings impacting the engine's performance and fuel delivery. Addressing the issue promptly can help restore optimal fuel efficiency.
Discuss the causes and fixes for P0122 2009 Nissan Sentra OBDII Code
Code P0122 2009 Nissan Sentra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
