P2138 2003 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
- P2138 2003 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.
Code P2138 2003 Infiniti G35 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 P2138 2003 Infiniti G35?
- Faulty Accelerator Pedal Position Sensor
- Accelerator Pedal Position Sensor harness is open or shorted
- Accelerator Pedal Position Sensor circuit poor electrical connection
- Faulty Electric Throttle Control Actuator
How to Fix the DTC P2138 2003 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 P2138 2003 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 P2138 2003 Infiniti G35 code?
Need more information on how to fix the P2138 2003 Infiniti G35 code? Get Access to Factory Service Manuals
Need Help with the Code?
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Frequently Asked Questions about P2138 2003 Infiniti G35 Code
1. What are common symptoms of OBDII code P2138 in a 2003 Infiniti G35?
- Common symptoms include reduced engine power, hesitation or lack of response when pressing the accelerator pedal, and the vehicle going into "limp mode."
2. What causes the OBDII code P2138 in a 2003 Infiniti G35?
- The code P2138 typically indicates a fault with the accelerator pedal position sensor or its circuit, which could be caused by a faulty sensor, wiring issues, or a poor electrical connection.
3. How can I diagnose the issue causing the OBDII code P2138 in my 2003 Infiniti G35?
- Diagnostic steps may include checking the wiring and connections related to the accelerator pedal position sensor, testing the sensor itself for proper functionality, and using a scan tool to monitor sensor readings.
4. Is it safe to continue driving my 2003 Infiniti G35 with the OBDII code P2138 present?
- It is not recommended to drive the vehicle with the code P2138 active, as it can lead to unpredictable acceleration and potentially unsafe driving conditions.
5. Can I reset the OBDII code P2138 in my 2003 Infiniti G35 by disconnecting the battery?
- While disconnecting the battery may temporarily clear the code, it is essential to diagnose and repair the underlying issue causing the code to prevent it from reoccurring.
6. How much does it typically cost to repair the OBDII code P2138 in a 2003 Infiniti G35?
- The cost of repairing the code P2138 can vary depending on the specific cause of the issue, but it may involve replacing the accelerator pedal position sensor or addressing wiring problems.
7. Are there any DIY repair tips for fixing the OBDII code P2138 in a 2003 Infiniti G35?
- DIY repair tips may include carefully inspecting the sensor wiring for damage, ensuring proper connections, and following manufacturer-specific diagnostic procedures outlined in the repair manual.
8. Can a faulty accelerator pedal position sensor cause other issues besides triggering the OBDII code P2138 in a 2003 Infiniti G35?
- Yes, a faulty accelerator pedal position sensor can also cause issues such as poor throttle response, erratic idle, and difficulty maintaining consistent speed while driving.
9. How long does it typically take to repair the OBDII code P2138 in a 2003 Infiniti G35?
- The repair time can vary depending on the extent of the issue and the availability of parts, but it may take a few hours to a full day to diagnose and fix the problem.
10. Is it advisable to take my 2003 Infiniti G35 to a professional mechanic for the OBDII code P2138 repair?
- Due to the complexity of diagnosing and repairing issues related to the accelerator pedal position sensor circuit, it is advisable to seek assistance from a qualified mechanic with experience working on Infiniti vehicles.
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