P2138 2009 Honda Accord Code - Accelerator Pedal Position Sensor 1/2 Incorrect Voltage
Quick Answer
The P2138 diagnostic trouble code (DTC) for a 2009 Honda Accord indicates that there is an issue with the accelerator pedal position sensor 1/2, specifically an incorrect voltage reading. Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections in the sensor circuit. 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 Honda Accord indicates Accelerator Pedal Position Sensor 1/2 Incorrect Voltage.
- Common causes
- Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections in the sensor circuit.
- 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 2009 Honda Accord Description
The P2138 diagnostic trouble code (DTC) for a 2009 Honda Accord indicates that there is an issue with the accelerator pedal position sensor 1/2, specifically an incorrect voltage reading. This sensor is responsible for monitoring the position of the accelerator pedal and sending this information to the engine control module (ECM) to adjust fuel delivery and throttle response accordingly. When the ECM detects that the voltage readings from the sensor are outside of the expected range, it triggers the P2138 code.
Common Causes of P2138 2009 Honda Accord
- Faulty accelerator pedal position sensor
- Damaged wiring or connectors in the sensor circuit
- Corrosion or poor connections in the sensor circuit
- Issues with the ECM
Symptoms of P2138 2009 Honda Accord
- Reduced engine power
- Unresponsive throttle
- Check Engine Light illuminated
- Engine stalling or hesitation
- Rough idle
How to Fix P2138 2009 Honda Accord
- Begin by diagnosing the issue using a scan tool to confirm the P2138 code and identify the specific component causing the problem.
- Inspect the accelerator pedal position sensor and its wiring for any visible damage or corrosion. Replace the sensor if necessary.
- Check the wiring and connectors in the sensor circuit for any loose connections or breaks. Repair or replace as needed.
- Clear the DTC and reset the ECM to see if the issue persists. Test drive the vehicle to ensure that the problem has been resolved.
- If the problem persists, further diagnostics may be required to pinpoint the exact cause of the incorrect voltage readings.
Cost to Fix P2138 2009 Honda Accord
The typical repair costs for addressing a P2138 code on a 2009 Honda Accord can vary depending on the specific cause of the issue. In general, replacing a faulty accelerator pedal position sensor can cost between $100 and $200, while addressing wiring or connector issues may range from $50 to $150. Labor costs at auto repair shops typically range from $80 to $150 per hour, and additional diagnostic time may be necessary to accurately diagnose and repair the problem. It is advisable to consult with a qualified mechanic or dealership to get a more precise estimate based on the specific circumstances of your vehicle.
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Frequently Asked Questions about P2138 2009 Honda Accord Code
1. What are the common symptoms of OBDII code P2138 in a 2009 Honda Accord?
- Common symptoms include reduced engine power, acceleration issues, and the vehicle going into "limp mode."
2. What does the OBDII code P2138 on a 2009 Honda Accord indicate?
- The code P2138 indicates that there is incorrect voltage detected in the accelerator pedal position sensor 1/2.
3. What are the possible causes of OBDII code P2138 in a 2009 Honda Accord?
- Possible causes include a faulty accelerator pedal position sensor, wiring issues, poor electrical connections, or a problem with the throttle body.
4. How can I diagnose the OBDII code P2138 in my 2009 Honda Accord?
- To diagnose the code P2138, you can use an OBDII scanner to read the code, visually inspect the wiring and connections, and test the accelerator pedal position sensor and throttle body.
5. Is it safe to continue driving my 2009 Honda Accord with OBDII code P2138?
- It is not recommended to drive your vehicle with code P2138 as it may lead to further damage and safety risks. It's best to address the issue promptly.
6. Can I repair OBDII code P2138 in my 2009 Honda Accord myself?
- Depending on your experience and tools, you may be able to repair the issue yourself by replacing the accelerator pedal position sensor, fixing wiring problems, or cleaning the throttle body.
7. How much does it typically cost to repair OBDII code P2138 in a 2009 Honda Accord?
- The cost of repairing code P2138 can vary depending on the exact cause of the issue. It may range from $100 to $300 for parts and labor.
8. Are there any DIY tips for fixing OBDII code P2138 in a 2009 Honda Accord?
- DIY tips include checking and cleaning the electrical connections, inspecting for damaged wires, and ensuring proper sensor installation for the accelerator pedal position sensor.
9. Can a faulty accelerator pedal position sensor cause other OBDII codes in a 2009 Honda Accord?
- Yes, a faulty accelerator pedal position sensor can cause related codes such as P2137 and P2128 to appear in addition to P2138.
10. How long does it take to repair OBDII code P2138 in a 2009 Honda Accord?
- The repair time for code P2138 can vary depending on the exact cause and complexity of the issue. It may take anywhere from 1-3 hours to complete the repair.
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