P2138 2012 Nissan Pathfinder Code - Accelerator Pedal Position Sensor Circuit Range/Performance
Quick Answer
The P2138 code for a 2012 Nissan Pathfinder indicates a problem with the Accelerator Pedal Position Sensor Circuit Range/Performance. Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, ECM malfunction. 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 2012 Nissan Pathfinder indicates Accelerator Pedal Position Sensor Circuit Range/Performance.
- Common causes
- Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, ECM malfunction.
- 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.
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Code P2138 2012 Nissan Pathfinder Description
The P2138 code for a 2012 Nissan Pathfinder indicates a problem with the Accelerator Pedal Position Sensor Circuit Range/Performance. This sensor is responsible for communicating the position of the accelerator pedal to the engine control module (ECM). The ECM uses this information to determine the appropriate amount of fuel to inject into the engine for optimal performance.
Common Causes of P2138 2012 Nissan Pathfinder
- Faulty accelerator pedal position sensor
- Damaged wiring or connectors in the sensor circuit
- ECM malfunction
- Corrosion or contamination in the sensor connections
- Electrical issues such as a short circuit or open circuit in the sensor circuit
Symptoms of P2138 2012 Nissan Pathfinder
- Engine hesitation or lack of response when pressing the accelerator pedal
- Check Engine Light illuminated on the dashboard
- Reduced engine power or acceleration
- Rough idling or stalling
- Poor fuel efficiency
How to Fix P2138 2012 Nissan Pathfinder
- Use a diagnostic scanner to retrieve the trouble code and identify the specific cause of the issue.
- Inspect the accelerator pedal position sensor, wiring, and connectors for any signs of damage or corrosion.
- Replace the accelerator pedal position sensor if it is found to be faulty.
- Repair or replace any damaged wiring or connectors in the sensor circuit.
- Clear the trouble code from the ECM and perform a test drive to ensure the issue has been resolved.
Cost to Fix P2138 2012 Nissan Pathfinder
The typical repair costs for addressing a P2138 code on a 2012 Nissan Pathfinder can vary depending on the exact cause of the issue. In general, replacing the accelerator pedal position sensor and addressing any wiring or connector issues can range from $200 to $500, including parts and labor. It is important to note that diagnostic time and labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more affordable pricing options.
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Frequently Asked Questions about P2138 2012 Nissan Pathfinder Code
1. What are the common symptoms of OBDII code P2138 in a 2012 Nissan Pathfinder?
- Common symptoms include a lack of acceleration, reduced engine power, and the vehicle going into limp mode.
2. What causes the OBDII code P2138 in a 2012 Nissan Pathfinder?
- The code is typically triggered by issues with the accelerator pedal position sensor or its circuit, such as sensor malfunction, wiring issues, or a faulty connection.
3. How can I diagnose the OBDII code P2138 in my 2012 Nissan Pathfinder?
- Diagnosis involves using a scan tool to read the code, checking the accelerator pedal position sensor and its wiring for any visible damage, and testing the sensor's voltage and resistance.
4. Can a dirty throttle body cause OBDII code P2138 in a 2012 Nissan Pathfinder?
- While a dirty throttle body can impact throttle response, it is unlikely to directly trigger P2138. Focus on checking the accelerator pedal position sensor and related components.
5. What are some repair tips for addressing OBDII code P2138 in a 2012 Nissan Pathfinder?
- Repair tips include inspecting and cleaning the accelerator pedal position sensor, checking and repairing any damaged wiring, and ensuring proper sensor calibration.
6. Is it safe to continue driving with OBDII code P2138 in my 2012 Nissan Pathfinder?
- It is not recommended to drive the vehicle with P2138 as it can lead to unsafe driving conditions due to reduced engine power and potential loss of control.
7. Can resetting the OBDII code P2138 in my 2012 Nissan Pathfinder fix the issue?
- Resetting the code may temporarily turn off the check engine light, but it won't address the underlying problem causing P2138. Proper diagnosis and repair are necessary.
8. How much does it typically cost to repair OBDII code P2138 in a 2012 Nissan Pathfinder?
- The cost of repairs can vary depending on the exact cause of the issue, but it may involve sensor replacement, wiring repairs, or professional diagnostic services.
9. Will OBDII code P2138 affect the fuel efficiency of my 2012 Nissan Pathfinder?
- Yes, P2138 can impact fuel efficiency as the engine may not be able to operate optimally, leading to increased fuel consumption.
10. Can a DIY enthusiast fix OBDII code P2138 in a 2012 Nissan Pathfinder?
- While some basic troubleshooting like checking connections and cleaning sensors can be done DIY, for more complex issues, it's advisable to seek professional help to ensure proper diagnosis and repair.
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