P0138 2020 Honda CR-V Code - Secondary Heated Oxygen Sensor 2 Circuit High Voltage
Quick Answer
The Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) detects the oxygen content in the exhaust gas downstream of the three-way catalytic converter (TWC) during stoichiometric air/fuel ratio feedback control. Common causes include Faulty Secondary Heated Oxygen Sensor 2, Secondary Heated Oxygen Sensor 2 harness is open or shorted, Secondary Heated Oxygen Sensor 2 circuit poor electrical connection. 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, Secondary Heated Oxygen Sensor 2 harness is open or shorted, Secondary Heated Oxygen Sensor 2 circuit poor electrical connection.
- 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.
Code P0138 2020 Honda CR-V Description
What are the Possible Causes of the DTC P0138 2020 Honda CR-V?
- Faulty Secondary Heated Oxygen Sensor 2
- Secondary Heated Oxygen Sensor 2 harness is open or shorted
- Secondary Heated Oxygen Sensor 2 circuit poor electrical connection
How to Fix the DTC P0138 2020 Honda CR-V?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0138 2020 Honda CR-V 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.
Need more information about the P0138 2020 Honda CR-V code?
Need more information on how to fix the P0138 2020 Honda CR-V code? Get Access to Factory Service Manuals
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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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