P2138 2009 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 2009 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 2009 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 2009 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 2009 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 2009 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 2009 Nissan Pathfinder Code
1. What are the common symptoms of OBDII code P2138 in a 2009 Nissan Pathfinder?
- Common symptoms include reduced engine power, sluggish acceleration, and the vehicle going into "limp mode" to prevent further damage.
2. What is the main cause of OBDII code P2138 in a 2009 Nissan Pathfinder?
- The main cause is usually a malfunction or failure of the accelerator pedal position sensor or the throttle position sensor.
3. How can I diagnose the issue causing OBDII code P2138 in my 2009 Nissan Pathfinder?
- A diagnostic scan tool can be used to read the code and determine if the accelerator pedal position sensor or throttle position sensor is faulty. Additionally, inspecting the wiring and connectors for any damage or loose connections is recommended.
4. Can I continue driving my 2009 Nissan Pathfinder with OBDII code P2138 present?
- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage and potential safety hazards due to reduced engine power.
5. What is the repair process for fixing OBDII code P2138 in a 2009 Nissan Pathfinder?
- The repair process typically involves replacing the faulty accelerator pedal position sensor or throttle position sensor. It is important to use OEM parts and follow proper installation procedures.
6. Are there any DIY tips for troubleshooting OBDII code P2138 in a 2009 Nissan Pathfinder?
- DIY tips include checking the sensor connectors for corrosion, ensuring proper voltage supply to the sensors, and performing a visual inspection of the sensor components for any signs of damage.
7. How much does it cost to repair OBDII code P2138 in a 2009 Nissan Pathfinder?
- The cost of repairing this code can vary depending on the extent of the damage and whether you choose to do the repair yourself or take it to a professional mechanic. Replacement sensors can range from $50 to $200.
8. Will resetting the OBDII code P2138 in my 2009 Nissan Pathfinder make it go away permanently?
- Resetting the code without addressing the underlying issue will not make it go away permanently. The root cause of the problem must be diagnosed and fixed to prevent the code from reappearing.
9. Can extreme weather conditions affect the occurrence of OBDII code P2138 in a 2009 Nissan Pathfinder?
- Yes, extreme weather conditions can potentially affect the sensors and wiring associated with the accelerator pedal and throttle, leading to the triggering of OBDII code P2138.
10. Is OBDII code P2138 a common issue in 2009 Nissan Pathfinders?
- While not extremely common, OBDII code P2138 related to accelerator pedal position sensor circuit range/performance issues can occur in 2009 Nissan Pathfinders due to sensor wear, electrical problems, or other factors.
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