P2123 2003 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
- P2123 2003 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 P2123 2003 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 P2123 2003 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 P2123 2003 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 P2123 2003 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 P2123 2003 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P2123 in a 2003 Nissan Altima Sedan?
Symptoms may include poor acceleration, lack of power, engine stalling, and the vehicle going into limp mode.
2. What does the OBDII code P2123 indicate in a 2003 Nissan Altima Sedan?
Code P2123 indicates an issue with the accelerator pedal position sensor circuit range or performance.
3. What are the possible causes of OBDII code P2123 in a 2003 Nissan Altima Sedan?
Possible causes include a faulty accelerator pedal position sensor, damaged wiring or connectors in the sensor circuit, or a problem with the engine control module (ECM).
4. How can I diagnose the cause of OBDII code P2123 in my 2003 Nissan Altima Sedan?
Diagnosis typically involves checking the accelerator pedal position sensor for proper operation, inspecting the sensor wiring and connectors for damage, and testing the ECM for any faults.
5. Can I drive my 2003 Nissan Altima Sedan with OBDII code P2123?
It is not recommended to drive the vehicle with code P2123 as it may lead to poor performance and potential safety issues. It's best to address the problem promptly.
6. How can I repair OBDII code P2123 in my 2003 Nissan Altima Sedan?
Repair methods may include replacing the accelerator pedal position sensor, repairing damaged wiring or connectors, or reprogramming the ECM.
7. Are there any DIY tips for fixing OBDII code P2123 in a 2003 Nissan Altima Sedan?
DIY tips include carefully inspecting the sensor wiring for any visible damage, ensuring proper connections, and consulting the vehicle's service manual for specific repair procedures.
8. How much does it typically cost to repair OBDII code P2123 in a 2003 Nissan Altima Sedan?
The cost of repair can vary depending on the specific cause of the issue. Replacement of the accelerator pedal position sensor or ECM repair can range from $100 to $500 or more.
9. Will resetting the OBDII code P2123 in my 2003 Nissan Altima Sedan make it go away permanently?
Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear. It's important to diagnose and fix the root cause of the problem.
10. Can a faulty accelerator pedal position sensor cause other OBDII codes to trigger in a 2003 Nissan Altima Sedan?
Yes, a faulty accelerator pedal position sensor can cause related codes to trigger, such as P2122 (Accelerator Pedal Position Sensor 1 Circuit Low) or P2121 (Accelerator Pedal Position Sensor 1 Performance).
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