P0139 2017 Honda CR-V Code - Secondary Heated Oxygen Sensor 2 Slow Response
Quick Answer
The P0139 diagnostic trouble code (DTC) for a 2017 Honda CR-V refers to a problem with the Secondary Heated Oxygen Sensor 2 (HO2S2) slow response. Common causes include Faulty oxygen sensor, Wiring or connector issues, Exhaust 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
- P0139 2017 Honda CR-V indicates Secondary Heated Oxygen Sensor 2 Slow Response.
- Common causes
- Common causes include Faulty oxygen sensor, Wiring or connector issues, Exhaust 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 P0139 2017 Honda CR-V Description
The P0139 diagnostic trouble code (DTC) for a 2017 Honda CR-V refers to a problem with the Secondary Heated Oxygen Sensor 2 (HO2S2) slow response. The oxygen sensor is a crucial component of the vehicle's emissions control system, responsible for monitoring the amount of oxygen in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion. The secondary oxygen sensor is located downstream of the catalytic converter and is primarily used to monitor the efficiency of the converter.
Common Causes of P0139 2017 Honda CR-V
- Faulty oxygen sensor
- Wiring or connector issues
- Exhaust leaks
- Engine misfire
- Faulty ECM
Symptoms of P0139 2017 Honda CR-V
- Decreased fuel efficiency
- Rough idling or stalling
- Check Engine Light illuminated
- Poor acceleration
- Increased emissions
How to Fix P0139 2017 Honda CR-V
- Begin by diagnosing the issue using a scan tool to confirm the P0139 code and identify the specific problem with the secondary oxygen sensor.
- Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as necessary.
- Test the secondary oxygen sensor's functionality using a multimeter to ensure it is providing accurate readings.
- If the sensor is faulty, replace it with a new OEM sensor to ensure proper operation.
- Clear the DTC and perform a test drive to verify that the issue has been resolved.
Cost to Fix P0139 2017 Honda CR-V
The typical repair costs for addressing a P0139 code on a 2017 Honda CR-V can range from $150 to $400, including parts and labor. However, it's important to note that the 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. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's recommended to check local rates for a more accurate estimate.
Tech Notes for P0139 2017 Honda CR-V
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Frequently Asked Questions about P0139 2017 Honda CR-V Code
1. What does the OBDII code P0139 mean on a 2017 Honda CR-V?
P0139 indicates that the secondary heated oxygen sensor (Bank 1, Sensor 2) is detecting a slow response time in oxygen level changes, suggesting a potential issue with the sensor or exhaust system.
2. What are the common symptoms of code P0139 in a 2017 Honda CR-V?
Common symptoms include a check engine light, decreased fuel efficiency, potential hesitation during acceleration, and a possible increase in exhaust emissions.
3. What causes the P0139 code to appear on a 2017 Honda CR-V?
Causes can include a failing oxygen sensor, exhaust leaks, wiring or connector issues, a dirty or failing catalytic converter, or engine performance problems affecting exhaust gases.
4. Can I drive my 2017 Honda CR-V with a P0139 code?
While the car may still be drivable, prolonged driving with this code can lead to reduced fuel efficiency and potential damage to the catalytic converter, so it’s best to address it promptly.
5. How do I diagnose the P0139 code on a 2017 Honda CR-V?
Start by checking the wiring and connectors for damage or corrosion, inspect for exhaust leaks, and test the oxygen sensor with a multimeter or diagnostic tool to confirm its functionality.
6. How do I fix the P0139 code on a 2017 Honda CR-V?
Repairs may include replacing the oxygen sensor, repairing damaged wiring or connectors, sealing exhaust leaks, or cleaning/replacing the catalytic converter if necessary.
7. How much does it cost to fix a P0139 code on a 2017 Honda CR-V?
The cost varies depending on the issue, but replacing the oxygen sensor typically costs between $150 and $300, including parts and labor.
8. Can a dirty air filter cause the P0139 code on a 2017 Honda CR-V?
A dirty air filter typically does not cause this code directly, but it can affect overall engine performance and contribute to exhaust-related problems that might trigger the code.
9. What tools are needed to fix the P0139 code on a 2017 Honda CR-V?
You’ll need an OBDII scanner to read and clear the code, a multimeter to test the sensor, basic hand tools for removal and installation, and potentially a jack and jack stands for exhaust inspection.
10. How can I prevent the P0139 code from occurring on my 2017 Honda CR-V?
Regular maintenance, including timely oxygen sensor replacement, checking for exhaust leaks, and addressing engine performance issues, can help prevent this code from appearing.
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