P2138 2005 Nissan Pathfinder 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 2005 Nissan Pathfinder 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 2005 Nissan Pathfinder 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 2005 Nissan Pathfinder?
- 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 2005 Nissan Pathfinder?
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 2005 Nissan Pathfinder 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 P2138 2005 Nissan Pathfinder Code
1. What are the common symptoms of OBDII code P2138 in a 2005 Nissan Pathfinder?
- Common symptoms include a lack of throttle response, engine stalling, and the vehicle going into limp mode.
2. What does the OBDII code P2138 for a 2005 Nissan Pathfinder indicate?
- The code indicates an issue with the Accelerator Pedal Position Sensor Circuit Range/Performance.
3. What are the possible causes of the P2138 code in a 2005 Nissan Pathfinder?
- Possible causes include a faulty accelerator pedal position sensor, wiring issues, or a problem with the throttle body.
4. How can I diagnose the cause of the P2138 code in my 2005 Nissan Pathfinder?
- A thorough inspection of the accelerator pedal position sensor, throttle body, and related wiring can help pinpoint the issue.
5. Can I continue driving my 2005 Nissan Pathfinder with the P2138 code present?
- It is not recommended to drive the vehicle with the P2138 code as it can lead to unsafe driving conditions and potential damage to the engine.
6. Is it possible to repair the P2138 code in a 2005 Nissan Pathfinder myself?
- While some basic troubleshooting like checking the wiring connections can be done, it is recommended to have a professional diagnose and repair this issue.
7. How much does it typically cost to repair the P2138 code in a 2005 Nissan Pathfinder?
- The cost of repair can vary depending on the exact cause of the issue, but it may range from a couple of hundred dollars to over a thousand dollars.
8. Can resetting the OBDII system clear the P2138 code in a 2005 Nissan Pathfinder?
- Resetting the system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear.
9. Will the P2138 code cause any long-term damage to my 2005 Nissan Pathfinder if left unresolved?
- Ignoring the P2138 code can lead to further damage to the engine or other components over time, so it is best to address the issue promptly.
10. How can I prevent the P2138 code from appearing again in my 2005 Nissan Pathfinder?
- Regular maintenance, including checking the accelerator pedal position sensor and throttle body, can help prevent the recurrence of the P2138 code.
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