P2122 Infiniti Code - Accelerator Pedal Position Sensor Circuit Range/Performance
Quick Answer
The P2122 code for Infiniti vehicles indicates a problem with the Accelerator Pedal Position Sensor Circuit, specifically relating to a range/performance issue. Common causes include Faulty accelerator pedal position sensor, Damaged or corroded wiring in the sensor circuit, Issues with the ECM. 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 Infiniti indicates Accelerator Pedal Position Sensor Circuit Range/Performance.
- Common causes
- Common causes include Faulty accelerator pedal position sensor, Damaged or corroded wiring in the sensor circuit, Issues with the ECM.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P2122 Infiniti Description
The P2122 code for Infiniti vehicles indicates a problem with the Accelerator Pedal Position Sensor Circuit, specifically relating to a range/performance issue. This sensor is responsible for monitoring the position of the accelerator pedal and sending this information to the engine control module (ECM) to adjust the throttle accordingly. When this circuit is not performing within the expected range, it can lead to various performance issues in the vehicle.
Common Causes of P2122 Infiniti
- Faulty accelerator pedal position sensor
- Damaged or corroded wiring in the sensor circuit
- Issues with the ECM
- Poor electrical connections
- Throttle body malfunction
Symptoms of P2122 Infiniti
- Reduced engine power
- Inconsistent throttle response
- Illuminated Check Engine Light
- Difficulty maintaining speed
- Vehicle stalling or hesitating
How to Fix P2122 Infiniti
- Diagnose the issue using a scan tool to verify the P2122 code and identify the exact cause.
- Inspect the accelerator pedal position sensor and wiring for any visible damage or corrosion.
- Test the sensor's resistance and voltage output to determine if it is functioning correctly.
- Replace the accelerator pedal position sensor if it is found to be faulty.
- Clear the code and perform a test drive to ensure the issue has been resolved.
Cost to Fix P2122 Infiniti
The cost of repairing a P2122 code on an Infiniti vehicle can vary depending on the specific cause of the issue. In general, replacing the accelerator pedal position sensor can cost anywhere from $100 to $300, including parts and labor. Additional costs may apply if there are wiring or ECM problems that need to be addressed. As mentioned earlier, labor rates at auto repair shops can vary, so it's recommended to obtain quotes from different sources to get an accurate estimate.
Need more information about the P2122 Infiniti code?
Need more information on how to fix the P2122 Infiniti code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2122 Infiniti code diagnosed by a professional: Find a repair shop in your area
Information for Specific Infiniti Models
- P2122 2003 Infiniti G35 — Accelerator Pedal Position Sensor Circuit Range/Performance
- P2122 2004 Infiniti G35 — Accelerator Pedal Position Sensor Circuit Range/Performance
- P2122 2005 Infiniti G35 — Accelerator Pedal Position Sensor Circuit Range/Performance
- P2122 2006 Infiniti G35 — Accelerator Pedal Position Sensor Circuit Range/Performance
Frequently Asked Questions about P2122 Infiniti Code
1. What does the OBDII code P2122 mean on an Infiniti?
P2122 indicates a low voltage signal from the Accelerator Pedal Position Sensor (APP) circuit, which is responsible for monitoring the position of the accelerator pedal.
2. What are the common symptoms of P2122 on an Infiniti?
Symptoms may include reduced engine power, inability to accelerate, the Check Engine Light turning on, and entering limp mode.
3. What causes the P2122 code to trigger on an Infiniti?
Common causes include a faulty accelerator pedal position sensor, damaged wiring or connectors in the APP circuit, or a malfunctioning engine control module (ECM).
4. Can I still drive my Infiniti with the P2122 code active?
While the car may still run, it will likely have reduced power and responsiveness. Driving with this issue can be unsafe, so it’s best to address it promptly.
5. How do I diagnose the P2122 code on my Infiniti?
Start by inspecting the APP sensor, its wiring, and connectors for damage or loose connections. Use a multimeter to check for proper voltage and continuity in the circuit.
6. What tools are needed to fix the P2122 code on an Infiniti?
Basic tools include a multimeter for testing wiring, an OBDII scanner for clearing and confirming the code, and possibly a replacement APP sensor.
7. How much does it cost to fix the P2122 code on an Infiniti?
Repairs could range from $150 to $400, depending on whether the issue is a wiring fault or a need to replace the accelerator pedal assembly.
8. Can a dirty or faulty throttle body cause the P2122 code?
While a dirty throttle body is not a direct cause of P2122, it can contribute to similar symptoms. The primary issue is typically within the APP sensor or its circuit.
9. Do I need to reprogram the ECM after replacing the APP sensor on my Infiniti?
In most cases, reprogramming is not required, but you should clear the code with an OBDII scanner and allow the ECM to recalibrate.
10. How can I prevent the P2122 code from occurring again?
Regularly inspect the accelerator pedal assembly and its wiring for wear or damage, and ensure connectors are clean and secure.
Discuss the causes and fixes for P2122 Infiniti OBDII Code
Code P2122 Infiniti 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.