P0137 2017 Honda CR-V Code - Secondary Heated Oxygen Sensor 2 Circuit Low Voltage
Quick Answer
The P0137 diagnostic trouble code (DTC) for a 2017 Honda CR-V specifically indicates an issue with the Secondary Heated Oxygen Sensor 2 Circuit Low Voltage. Common causes include Faulty Secondary Heated Oxygen Sensor 2: The sensor itself may be malfunctioning, either due to internal issues or external factors such as contamination or damage, Wiring or Connector Issues: Loose, damaged, or corroded wiring or connectors can disrupt the signal between the sensor and the ECM, leading to low voltage readings, Exhaust System Leaks: Any leaks in the exhaust system before the sensor can introduce false air into the system, affecting the sensor's readings. 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
- P0137 2017 Honda CR-V indicates Secondary Heated Oxygen Sensor 2 Circuit Low Voltage.
- Common causes
- Common causes include Faulty Secondary Heated Oxygen Sensor 2: The sensor itself may be malfunctioning, either due to internal issues or external factors such as contamination or damage, Wiring or Connector Issues: Loose, damaged, or corroded wiring or connectors can disrupt the signal between the sensor and the ECM, leading to low voltage readings, Exhaust System Leaks: Any leaks in the exhaust system before the sensor can introduce false air into the system, affecting the sensor's readings.
- 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 P0137 2017 Honda CR-V Description
The P0137 diagnostic trouble code (DTC) for a 2017 Honda CR-V specifically indicates an issue with the Secondary Heated Oxygen Sensor 2 Circuit Low Voltage. This sensor, also known as the downstream oxygen sensor, is responsible for monitoring the oxygen content in the exhaust gases after they have passed through the catalytic converter. The information provided by this sensor is crucial for the engine control module (ECM) to adjust the air-fuel mixture to ensure optimal combustion and reduce harmful emissions.
Common Causes of P0137 2017 Honda CR-V
- Faulty Secondary Heated Oxygen Sensor 2: The sensor itself may be malfunctioning, either due to internal issues or external factors such as contamination or damage.
- Wiring or Connector Issues: Loose, damaged, or corroded wiring or connectors can disrupt the signal between the sensor and the ECM, leading to low voltage readings.
- Exhaust System Leaks: Any leaks in the exhaust system before the sensor can introduce false air into the system, affecting the sensor's readings.
- Exhaust System Damage: Physical damage to the exhaust system, such as dents or bends, can impact the sensor's ability to accurately measure oxygen levels.
- ECM Malfunction: In rare cases, a malfunction in the engine control module itself can cause erroneous readings from the sensor.
Symptoms of P0137 2017 Honda CR-V
- Check Engine Light: The illumination of the check engine light is one of the primary symptoms associated with the P0137 code.
- Decreased Fuel Efficiency: A faulty oxygen sensor can lead to poor fuel economy as the ECM struggles to adjust the air-fuel mixture.
- Rough Idling: Incorrect air-fuel ratios can cause the engine to run rough at idle, with noticeable vibrations or fluctuations in RPM.
- Hesitation or Stalling: The engine may hesitate or stall during acceleration or at idle due to incorrect fuel delivery.
- Increased Emissions: A malfunctioning oxygen sensor can result in higher emissions levels, potentially leading to a failed emissions test.
How to Fix P0137 2017 Honda CR-V
- Diagnose the Issue: Use a scan tool to retrieve the specific DTC and confirm that the Secondary Heated Oxygen Sensor 2 is the culprit.
- Inspect Wiring and Connectors: Check the sensor's wiring and connectors for any damage, corrosion, or loose connections. Repair or replace as necessary.
- Test the Sensor: Perform a voltage test on the sensor to verify its functionality. Replace the sensor if it fails to provide the correct voltage readings.
- Check for Exhaust Leaks: Inspect the exhaust system for any leaks that could be affecting the sensor's readings. Repair leaks and clear the code.
- Clear the Code: Once the issue has been addressed, use the scan tool to clear the DTC and reset the check engine light.
Cost to Fix P0137 2017 Honda CR-V
The typical repair costs for addressing a P0137 code on a 2017 Honda CR-V can vary depending on the specific cause of the issue. Costs can range from $100 to $300 for a new Secondary Heated Oxygen Sensor 2, with labor costs adding an additional $100 to $200. If the issue is related to wiring or connector problems, additional diagnostic and repair costs may apply. It's important to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on the specific circumstances of the vehicle. Keep in mind that labor rates can vary, so it's advisable to shop around for the best deal.
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Frequently Asked Questions about P0137 2017 Honda CR-V Code
1. What does the OBDII code P0137 mean on a 2017 Honda CR-V?
P0137 indicates that the Secondary Heated Oxygen Sensor 2 (downstream sensor) has a low voltage output, which suggests the sensor may not be detecting sufficient oxygen levels in the exhaust.
2. What are the common symptoms of code P0137 on a 2017 Honda CR-V?
Common symptoms include the check engine light turning on, reduced fuel efficiency, poor engine performance, or the vehicle failing an emissions test.
3. What causes the P0137 code to appear on a 2017 Honda CR-V?
Possible causes include a faulty downstream oxygen sensor, damaged wiring or connectors, a malfunctioning catalytic converter, or an exhaust system leak.
4. Can I still drive my 2017 Honda CR-V with a P0137 code?
While the vehicle may still be drivable, ignoring the code could lead to reduced fuel efficiency, increased emissions, or damage to the catalytic converter over time.
5. How do I fix the P0137 code on a 2017 Honda CR-V?
Repairs may include replacing the downstream oxygen sensor, repairing or replacing damaged wiring, fixing exhaust leaks, or addressing catalytic converter issues.
6. How can I test the oxygen sensor for a P0137 code?
You can use a multimeter to check the voltage output of the downstream oxygen sensor. It should generally fluctuate between 0.1V and 0.9V under normal conditions.
7. What tools are needed to diagnose and fix a P0137 code?
You'll need an OBDII scanner, a multimeter, and possibly a jack and wrench set if sensor replacement is required.
8. How much does it cost to fix a P0137 code on a 2017 Honda CR-V?
Replacing the oxygen sensor typically costs between $150 and $300, including parts and labor. Additional costs may apply if wiring or exhaust repairs are needed.
9. Can a dirty air filter cause the P0137 code in a 2017 Honda CR-V?
A dirty air filter is unlikely to directly cause P0137, but it may contribute to poor air-fuel mixture, which can affect sensor readings indirectly.
10. Will resetting the code fix the P0137 issue on a 2017 Honda CR-V?
Resetting the code may temporarily clear the check engine light, but it won’t fix the underlying issue. Proper diagnosis and repair are necessary to resolve the problem.
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