P2138 2008 Nissan Maxima 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 2008 Nissan Maxima 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 2008 Nissan Maxima 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 2008 Nissan Maxima?
- 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 2008 Nissan Maxima?
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 2008 Nissan Maxima 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 2008 Nissan Maxima Code
1. What are the common symptoms of OBDII code P2138 on a 2008 Nissan Maxima?
- Common symptoms include reduced engine power, hesitation or stalling when accelerating, and the vehicle going into limp mode.
2. What does the OBDII code P2138 indicate on a 2008 Nissan Maxima?
- The code P2138 indicates a problem with the Accelerator Pedal Position Sensor circuit range or performance.
3. What are the possible causes of OBDII code P2138 on a 2008 Nissan Maxima?
- Possible causes include a faulty Accelerator Pedal Position Sensor, issues with the wiring or connectors related to the sensor, or a problem with the electronic throttle control system.
4. How can I diagnose the cause of OBDII code P2138 on my 2008 Nissan Maxima?
- You can use a diagnostic scanner to read the code and check for any related codes. Perform a visual inspection of the sensor and its wiring, and conduct tests to check the sensor's voltage and resistance.
5. Can I continue driving my 2008 Nissan Maxima with OBDII code P2138?
- It is not recommended to drive the vehicle with code P2138, as it can lead to unsafe driving conditions and potential further damage to the engine.
6. How can I repair OBDII code P2138 on a 2008 Nissan Maxima?
- Repair options include replacing the Accelerator Pedal Position Sensor, repairing or replacing damaged wiring or connectors, and resetting the trouble codes.
7. Will resetting the trouble codes fix OBDII code P2138 on a 2008 Nissan Maxima?
- Resetting the trouble codes may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return.
8. How much does it cost to repair OBDII code P2138 on a 2008 Nissan Maxima?
- The cost of repair can vary depending on the cause of the issue, but it may range from $100 to $300 for parts and labor.
9. Can a DIY enthusiast fix OBDII code P2138 on a 2008 Nissan Maxima?
- Depending on your skill level and access to tools, DIY enthusiasts may be able to replace the Accelerator Pedal Position Sensor or check and repair wiring issues themselves.
10. How long does it take to repair OBDII code P2138 on a 2008 Nissan Maxima?
- The repair time can vary depending on the exact cause of the issue and your experience level, but it may take anywhere from 1 to 3 hours to complete the repair.
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