P2122 Infiniti 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 Infiniti 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 Infiniti 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 Infiniti?
- 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 Infiniti?
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 Infiniti 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 Infiniti code?
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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
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