AutoCodes – Infiniti – P2123 2004 Infiniti G35

P2123 2004 Infiniti G35 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 2004 Infiniti G35 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 2,510
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 2004 Infiniti G35 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 2004 Infiniti G35 - Accelerator Pedal Position Sensor Circuit Range/Performance - AutoCodes.com
P2123 2004 Infiniti G35 Code - Accelerator Pedal Position Sensor Circuit Range/Performance

What are the Possible Causes of the DTC P2123 2004 Infiniti G35?

  • 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 2004 Infiniti G35?

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 2004 Infiniti G35 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 2004 Infiniti G35 code?

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Need Help with the 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 2004 Infiniti G35 Code

1. What are the common symptoms of the OBDII code P2123 in a 2004 Infiniti G35?

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

2. What could be causing the P2123 code to trigger in a 2004 Infiniti G35?

- The P2123 code is typically caused by a faulty accelerator pedal position sensor, damaged wiring or connectors related to the sensor, or a malfunction in the engine control module.

3. How can I diagnose the P2123 code in my 2004 Infiniti G35?

- Diagnosing the P2123 code involves using an OBDII scanner to read the code and then inspecting the accelerator pedal position sensor and its wiring for any signs of damage or malfunction.

4. Can I still drive my 2004 Infiniti G35 with the P2123 code present?

- It is not recommended to drive the vehicle with the P2123 code present, as it can lead to unsafe driving conditions and potential further damage to the engine.

5. How can I repair the P2123 code in my 2004 Infiniti G35?

- Repairing the P2123 code typically involves replacing the accelerator pedal position sensor, repairing any damaged wiring or connectors, and clearing the code with an OBDII scanner.

6. Is it possible to reset the P2123 code in a 2004 Infiniti G35 without fixing the underlying issue?

- While you can clear the code temporarily with an OBDII scanner, it is important to address the underlying issue causing the P2123 code to prevent further problems.

7. Are there any DIY tips for fixing the P2123 code in a 2004 Infiniti G35?

- DIY tips include checking the sensor's wiring for damage, ensuring proper connections, and following a repair manual or online guides for step-by-step instructions.

8. How much does it typically cost to repair the P2123 code in a 2004 Infiniti G35 at a mechanic?

- The cost of repairing the P2123 code can vary depending on the extent of the issue, but it may range from $200 to $500 for parts and labor at a mechanic.

9. Will the P2123 code in a 2004 Infiniti G35 cause permanent damage if not addressed promptly?

- Ignoring the P2123 code can lead to further damage to the engine and other components, so it is best to address the issue promptly to prevent costly repairs down the line.

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