P0138 2020 Honda CR-V Code - Secondary Heated Oxygen Sensor 2 Circuit High Voltage
Quick Answer
The P0138 code on a 2020 Honda CR-V indicates an issue with the Secondary Heated Oxygen Sensor 2 Circuit registering high voltage. Common causes include Faulty Secondary Heated Oxygen Sensor 2, Wiring or connector issues, Vacuum leaks. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0138 2020 Honda CR-V indicates Secondary Heated Oxygen Sensor 2 Circuit High Voltage.
- Common causes
- Common causes include Faulty Secondary Heated Oxygen Sensor 2, Wiring or connector issues, Vacuum leaks.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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Code P0138 2020 Honda CR-V Description
The P0138 code on a 2020 Honda CR-V indicates an issue with the Secondary Heated Oxygen Sensor 2 Circuit registering high voltage. The oxygen sensor, also known as the O2 sensor, plays a crucial role in monitoring the oxygen levels in the exhaust gases to ensure the proper air-fuel ratio for efficient combustion. The Secondary Heated Oxygen Sensor 2 is located downstream of the catalytic converter and is responsible for monitoring the efficiency of the converter.
Common Causes of P0138 2020 Honda CR-V
- Faulty Secondary Heated Oxygen Sensor 2
- Wiring or connector issues
- Vacuum leaks
- Exhaust system leaks
- Fuel system problems
Symptoms of P0138 2020 Honda CR-V
- Decreased fuel efficiency
- Engine misfires or hesitation
- Illuminated check engine light
- Rough idling
- Failed emissions test
How to Fix P0138 2020 Honda CR-V
- Use an OBD-II scanner to confirm the P0138 code and identify the specific issue.
- Inspect the wiring and connectors related to the Secondary Heated Oxygen Sensor 2 for any damage or corrosion.
- Test the sensor's voltage output to determine if it is functioning correctly.
- Replace the Secondary Heated Oxygen Sensor 2 if it is found to be faulty.
- Clear the code and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0138 2020 Honda CR-V
The typical repair costs for addressing a P0138 code on a 2020 Honda CR-V can range from $150 to $300, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships and lower at independent shops. It's recommended to check local rates for a more accurate estimate.
Tech Notes for P0138 2020 Honda CR-V
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Frequently Asked Questions about P0138 2020 Honda CR-V Code
1. What are the common symptoms of OBDII code P0138 in a 2020 Honda CR-V?
- Common symptoms include poor fuel efficiency, rough idling, hesitation during acceleration, and the illumination of the Check Engine Light.
2. What does the OBDII code P0138 on a 2020 Honda CR-V indicate?
- The code P0138 indicates that the secondary heated oxygen sensor 2 circuit is registering a high voltage or excessive voltage output.
3. What are the possible causes of OBDII code P0138 in a 2020 Honda CR-V?
- Potential causes include a faulty secondary heated oxygen sensor, wiring issues, exhaust leaks, engine misfires, or a malfunctioning engine control module (ECM).
4. How can I diagnose the cause of OBDII code P0138 in my 2020 Honda CR-V?
- Diagnosing the issue may involve visually inspecting the sensor and its wiring, checking for exhaust leaks, performing a voltage test on the sensor, and using a scan tool to monitor sensor data.
5. Can I drive my 2020 Honda CR-V with OBDII code P0138?
- It's generally not recommended to drive the vehicle extensively with this code as it can lead to decreased fuel efficiency and potential damage to the catalytic converter.
6. How can I repair OBDII code P0138 in my 2020 Honda CR-V?
- Repair options may include replacing the secondary heated oxygen sensor, repairing any damaged wiring, fixing exhaust leaks, addressing engine misfires, or reprogramming the ECM.
7. Will resetting the Check Engine Light resolve OBDII code P0138 in a 2020 Honda CR-V?
- Simply resetting the Check Engine Light may temporarily clear the code, but it's essential to diagnose and address the underlying issue to prevent it from recurring.
8. How much does it cost to fix OBDII code P0138 in a 2020 Honda CR-V?
- The cost of fixing this code can vary depending on the exact cause and the labor rates of the repair shop, but it may range from $100 to $500 or more.
9. Can a DIY enthusiast fix OBDII code P0138 in a 2020 Honda CR-V?
- Depending on your skills and tools, some aspects of diagnosing and repairing this code may be within reach for a DIY enthusiast, but more complex issues may require professional assistance.
10. How often does OBDII code P0138 occur in a 2020 Honda CR-V?
- While not extremely common, occurrences of code P0138 can still happen due to various factors such as sensor wear, wiring degradation, or other system malfunctions.
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