P2122 2011 Nissan Altima Sedan Code - Accelerator Pedal Position Sensor Circuit Range/Performance
Quick Answer
The Accelerator Pedal Position (APP) sensor is installed on the upper end of the accelerator pedal assembly. Common causes include Faulty Accelerator Pedal Position Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position Sensor 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
- P2122 2011 Nissan Altima Sedan indicates Accelerator Pedal Position Sensor Circuit Range/Performance.
- Common causes
- Common causes include Faulty Accelerator Pedal Position Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position Sensor 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 P2122 2011 Nissan Altima Sedan Description
Accelerator pedal position sensor has two sensors. These sensors are a kind of potentiometers which transform the accelerator pedal position into output voltage, and emit the voltage signal to the ECM.
In addition, these sensors detect the opening and closing speed of the accelerator pedal and feed the voltage signals to the ECM. The ECM judges the current opening angle of the accelerator pedal from these signals and controls the throttle control motor based on these signals.
Idle position of the accelerator pedal is determined by the ECM receiving the signal from the accelerator pedal position sensor. The ECM uses this signal for the engine operation
such as fuel cut.
What are the Possible Causes of the DTC P2122 2011 Nissan Altima Sedan?
- Faulty Accelerator Pedal Position Sensor
- Accelerator Pedal Position Sensor harness is open or shorted
- Accelerator Pedal Position Sensor circuit poor electrical connection
How to Fix the DTC P2122 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 P2122 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.
Need more information about the P2122 2011 Nissan Altima Sedan code?
Need more information on how to fix the P2122 2011 Nissan Altima Sedan code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2122 2011 Nissan Altima Sedan code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2122 2011 Nissan Altima Sedan Code
1. What does the OBDII code P2122 mean in a 2011 Nissan Altima Sedan?
The code P2122 indicates a low voltage signal from the Accelerator Pedal Position Sensor (APP) to the Engine Control Module (ECM), suggesting a circuit range or performance issue.
2. What are common symptoms of P2122 in a 2011 Nissan Altima?
Symptoms may include reduced engine power, poor acceleration, the throttle not responding, and the Check Engine Light illuminating.
3. What causes the P2122 code in a Nissan Altima?
Possible causes include a faulty APP sensor, damaged or corroded wiring, a malfunctioning ECM, or a stuck throttle pedal.
4. Can I drive my 2011 Nissan Altima with the P2122 code?
Driving with this code is not recommended, as reduced throttle response can create safety issues, especially in situations requiring quick acceleration.
5. How do I diagnose the P2122 code?
Diagnosis involves using an OBDII scanner to confirm the code, inspecting the APP sensor and its wiring for damage, checking voltage output, and testing the circuit continuity.
6. How do you fix the P2122 code on a 2011 Nissan Altima?
Repairs may include replacing the APP sensor, repairing or replacing damaged wiring or connectors, and in rare cases, reprogramming or replacing the ECM.
7. Is the Accelerator Pedal Position Sensor expensive to replace?
Replacing the APP sensor usually costs between $150 and $300, including parts and labor, depending on the shop and location.
8. Can a dirty throttle body cause the P2122 code?
While not a direct cause, a dirty or malfunctioning throttle body can contribute to throttle-related issues and should be inspected during diagnosis.
9. How do I reset the P2122 code after making repairs?
Use an OBDII scanner to clear the code. If the issue is resolved, the code should not reappear after a drive cycle.
10. What happens if the P2122 code is ignored?
Ignoring the P2122 code can lead to continued throttle response issues, reduced performance, and potential safety risks while driving.
Discuss the causes and fixes for P2122 2011 Nissan Altima Sedan OBDII Code
Code P2122 2011 Nissan Altima Sedan 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.
