AutoCodes – Nissan – P2123 2010 Nissan Sentra

P2123 2010 Nissan Sentra 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 2010 Nissan Sentra 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,546
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P2123 2010 Nissan Sentra Description

The Accelerator Pedal Position (APP) sensor is installed on the upper end of the accelerator pedal assembly. The sensor detects the accelerator position and sends a signal to the Engine Control Module (ECM).
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.
OBDII Code P2123 2010 Nissan Sentra - Accelerator Pedal Position Sensor Circuit Range/Performance - AutoCodes.com
P2123 2010 Nissan Sentra Code - Accelerator Pedal Position Sensor Circuit Range/Performance

What are the Possible Causes of the DTC P2123 2010 Nissan Sentra?

  • 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 2010 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 P2123 2010 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 P2123 2010 Nissan Sentra code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2123 2010 Nissan Sentra Code

1. What are the common symptoms of OBDII code P2123 in a 2010 Nissan Sentra?

- Common symptoms include reduced engine power, hesitation or stalling when accelerating, and the vehicle going into "limp mode."

2. What does the OBDII code P2123 on a 2010 Nissan Sentra indicate?

- This code indicates a circuit range/performance issue with the accelerator pedal position sensor.

3. What are the possible causes of OBDII code P2123 in a 2010 Nissan Sentra?

- 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.

4. How can I diagnose the cause of OBDII code P2123 in my 2010 Nissan Sentra?

- Diagnosis typically involves checking the sensor's wiring and connectors for damage, testing the sensor itself for proper operation, and scanning the vehicle's computer for related trouble codes.

5. Can driving with OBDII code P2123 in a 2010 Nissan Sentra cause further damage?

- Continuing to drive with this code may lead to poor engine performance, reduced fuel efficiency, and potential damage to other engine components over time.

6. Is it safe to continue driving my 2010 Nissan Sentra with OBDII code P2123?

- It is not recommended to drive the vehicle with this code active, as it can affect the vehicle's drivability and potentially lead to unsafe driving conditions.

7. What are some repair tips for fixing OBDII code P2123 in a 2010 Nissan Sentra?

- Repair tips include checking and cleaning the sensor connections, replacing the accelerator pedal position sensor if faulty, and ensuring all wiring is intact and properly connected.

8. Can I reset the OBDII code P2123 in my 2010 Nissan Sentra by disconnecting the battery?

- Disconnecting the battery may temporarily clear the code, but it is important to diagnose and fix the underlying issue to prevent the code from reoccurring.

9. How much does it typically cost to repair OBDII code P2123 in a 2010 Nissan Sentra?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve replacing the accelerator pedal position sensor, which can range from $100 to $300 including labor.

10. Is it possible to prevent OBDII code P2123 from appearing in my 2010 Nissan Sentra?

- Regular maintenance and inspections of the accelerator pedal position sensor and related components can help prevent this code from appearing.

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