Engine-CodesHonda – P0138 2019 Honda CR-V

P0138 2019 Honda CR-V Code - Secondary Heated Oxygen Sensor 2 Circuit High Voltage

Quick Answer

The P0138 code for a 2019 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, Damaged wiring or connectors, Vacuum leak in the intake system. 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 2019 Honda CR-V indicates Secondary Heated Oxygen Sensor 2 Circuit High Voltage.
Common causes
Common causes include Faulty secondary heated oxygen sensor 2, Damaged wiring or connectors, Vacuum leak in the intake system.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P0138 2019 Honda CR-V Description

The P0138 code for a 2019 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, is a crucial component of the vehicle's emissions control system. It monitors the level of oxygen in the exhaust gases and sends this information to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion efficiency.

OBDII Code P0138 2019 Honda CR-V - Secondary Heated Oxygen Sensor 2 Circuit High Voltage
P0138 2019 Honda CR-V Code - Secondary Heated Oxygen Sensor 2 Circuit High Voltage

Common Causes of P0138 2019 Honda CR-V

  1. Faulty secondary heated oxygen sensor 2
  2. Damaged wiring or connectors
  3. Vacuum leak in the intake system
  4. Malfunctioning catalytic converter
  5. Exhaust leak near the sensor

Symptoms of P0138 2019 Honda CR-V

  1. Check Engine light illuminated
  2. Decreased fuel efficiency
  3. Rough idling or engine misfires
  4. Increased emissions
  5. Loss of engine power

How to Fix P0138 2019 Honda CR-V

  1. Use an OBD-II scanner to confirm the P0138 code and identify the specific sensor causing the issue.
  2. Inspect the wiring and connectors for any signs of damage or corrosion. Repair or replace as necessary.
  3. Check for vacuum leaks in the intake system and repair any leaks found.
  4. Test the secondary heated oxygen sensor 2 using a multimeter to determine if it is functioning correctly. Replace the sensor if it is faulty.
  5. Clear the diagnostic trouble codes from the ECM and road test the vehicle to ensure the issue has been resolved.

Cost to Fix P0138 2019 Honda CR-V

The typical repair costs for addressing a P0138 code on a 2019 Honda CR-V can range from $200 to $500, including parts and labor. This estimate may vary depending on the location, the specific diagnosis time, and labor rates at auto repair shops. It's advisable to consult with a certified mechanic to obtain a more accurate cost estimate for the repairs.

Tech Notes for P0138 2019 Honda CR-V

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

Need more information about the P0138 2019 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 2019 Honda CR-V Code

1. What are the common symptoms of OBDII code P0138 on a 2019 Honda CR-V?

The common symptoms of P0138 include poor fuel economy, rough idling, loss of power, and the illumination of the check engine light.

2. What does the OBDII code P0138 in a 2019 Honda CR-V mean?

P0138 indicates that the secondary heated oxygen sensor 2 circuit is registering high voltage levels, which may suggest an issue with the sensor or the vehicle's oxygen sensor system.

3. What are the possible causes of the P0138 code in a 2019 Honda CR-V?

Potential causes of P0138 include a faulty secondary heated oxygen sensor, damaged wiring or connectors in the sensor circuit, exhaust leaks, or issues with the engine's air-fuel ratio.

4. How can I diagnose the P0138 code in a 2019 Honda CR-V?

Diagnosing P0138 involves using an OBDII scanner to retrieve the code, inspecting the secondary heated oxygen sensor and its wiring for damage, checking for exhaust leaks, and performing tests to verify the sensor's functionality.

5. Can I drive my 2019 Honda CR-V with the P0138 code?

It is generally not recommended to drive with the P0138 code illuminated, as it can lead to decreased fuel efficiency and potential engine damage. It's advisable to address the issue promptly.

6. How can I repair the P0138 code on my 2019 Honda CR-V?

Repairing P0138 may involve replacing the secondary heated oxygen sensor, repairing or replacing damaged wiring or connectors, fixing exhaust leaks, and clearing the code with an OBDII scanner.

7. Are there any DIY tips for fixing the P0138 code in a 2019 Honda CR-V?

While some basic diagnostics can be done at home, replacing the secondary heated oxygen sensor or addressing more complex issues related to P0138 may require professional assistance to ensure proper repair.

8. How much does it cost to fix the P0138 code on a 2019 Honda CR-V?

The cost of fixing P0138 can vary depending on the root cause of the issue, the need for parts replacement, and labor costs. It's recommended to obtain quotes from reputable mechanics or service centers.

9. Is the P0138 code a serious issue in a 2019 Honda CR-V?

While the P0138 code may not cause immediate drivability issues, it can affect the vehicle's performance and fuel efficiency over time. Addressing the code promptly can prevent further damage.

10. Can resetting the check engine light resolve the P0138 code in a 2019 Honda CR-V?

Simply resetting the check engine light will not fix the underlying issue causing the P0138 code. It's crucial to diagnose the problem, make necessary repairs, and clear the code with an OBDII scanner to resolve the issue effectively.

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