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P0138 2016 Honda CR-V Code - Secondary Heated Oxygen Sensor 2 Circuit High Voltage

Quick Answer

The P0138 code on a 2016 Honda CR-V indicates an issue with the Secondary Heated Oxygen Sensor 2 Circuit High Voltage. Common causes include Faulty Secondary Heated Oxygen Sensor 2, Wiring or connector issues in the oxygen sensor circuit, Exhaust leaks near the sensor. 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 2016 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 in the oxygen sensor circuit, Exhaust leaks near the sensor.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0138 2016 Honda CR-V Description

The P0138 code on a 2016 Honda CR-V indicates an issue with the Secondary Heated Oxygen Sensor 2 Circuit High Voltage. The oxygen sensor, also known as the O2 sensor, plays a crucial role in monitoring the oxygen levels in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion. The Secondary Heated Oxygen Sensor 2 is located downstream of the catalytic converter and is responsible for monitoring the efficiency of the catalytic converter.

OBDII Code P0138 2016 Honda CR-V - Secondary Heated Oxygen Sensor 2 Circuit High Voltage
P0138 2016 Honda CR-V Code - Secondary Heated Oxygen Sensor 2 Circuit High Voltage

Common Causes of P0138 2016 Honda CR-V

  1. Faulty Secondary Heated Oxygen Sensor 2.
  2. Wiring or connector issues in the oxygen sensor circuit.
  3. Exhaust leaks near the sensor.
  4. Engine running rich due to issues with the fuel system.
  5. ECM software or hardware problems.

Symptoms of P0138 2016 Honda CR-V

  1. Check Engine Light illuminated on the dashboard.
  2. Decreased fuel efficiency.
  3. Rough idling or stalling.
  4. Engine misfires.
  5. Increased emissions output.

How to Fix P0138 2016 Honda CR-V

  1. Begin by diagnosing the P0138 code using a diagnostic scanner to confirm the issue with the Secondary Heated Oxygen Sensor 2.
  2. Inspect the wiring and connectors of the sensor for any damage or corrosion. Repair or replace as necessary.
  3. Check for exhaust leaks near the sensor and repair them.
  4. Test the Secondary Heated Oxygen Sensor 2 using a multimeter to ensure it is functioning correctly. Replace the sensor if it is faulty.
  5. Clear the code from the ECM and perform a test drive to verify that the issue has been resolved.

Cost to Fix P0138 2016 Honda CR-V

The typical repair costs for addressing a P0138 code on a 2016 Honda CR-V can range from $200 to $500, including parts and labor. The cost of the Secondary Heated Oxygen Sensor 2 itself can vary depending on the brand and quality of the sensor. Additionally, labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. It is advisable to check with local repair shops for a more accurate estimate based on your specific location and vehicle.

What does this mean?

Tech Notes for P0138 2016 Honda CR-V

Replacing the Rear Heated Oxygen Sensor Bank 1 usually takes care of the problem.

Need more information about the P0138 2016 Honda CR-V code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0138 2016 Honda CR-V Code

1. What are the common symptoms of OBDII code P0138 in a 2016 Honda CR-V?

- Common symptoms include poor fuel economy, rough idling, engine hesitation, and the illumination of the Check Engine light.

2. What does the OBDII code P0138 on a 2016 Honda CR-V indicate?

- The code P0138 refers to an issue with the Secondary Heated Oxygen Sensor 2 Circuit High Voltage in the exhaust system of the vehicle.

3. What are the possible causes of the Secondary Heated Oxygen Sensor 2 Circuit High Voltage code in a 2016 Honda CR-V?

- Causes can include a faulty oxygen sensor, wiring issues, exhaust leaks, engine misfires, or a failed catalytic converter.

4. How can I diagnose the OBDII code P0138 on my 2016 Honda CR-V?

- Diagnosis involves using an OBDII scanner to retrieve the code, inspecting the oxygen sensor and related wiring, and checking for any exhaust system leaks.

5. Can I drive my 2016 Honda CR-V with the P0138 code?

- It is not recommended to drive the vehicle with the P0138 code as it can lead to poor engine performance and potential damage to the catalytic converter over time.

6. How do I repair the Secondary Heated Oxygen Sensor 2 Circuit High Voltage code on my 2016 Honda CR-V?

- Repair may involve replacing the faulty oxygen sensor, repairing any damaged wiring, fixing exhaust leaks, addressing engine misfires, or replacing the catalytic converter if needed.

7. Will resetting the Check Engine light fix the P0138 code on my 2016 Honda CR-V?

- Simply resetting the Check Engine light will not fix the underlying issue causing the P0138 code. Proper diagnosis and repair are necessary to resolve the problem.

8. How much does it cost to repair the OBDII code P0138 on a 2016 Honda CR-V?

- The cost of repair for the P0138 code can vary depending on the specific cause, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Can a DIY enthusiast fix the P0138 code on a 2016 Honda CR-V?

- Depending on the cause of the code, some DIY enthusiasts with automotive repair experience may be able to tackle the repair themselves, especially if it involves replacing the oxygen sensor or checking for wiring issues.

10. How often does the Secondary Heated Oxygen Sensor 2 Circuit High Voltage code occur in a 2016 Honda CR-V?

- The occurrence of the P0138 code can vary, but it is a relatively common issue that may arise due to factors such as sensor wear, wiring degradation, or other related issues.

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