Engine-CodesHonda – P0137 2018 Honda CR-V

P0137 2018 Honda CR-V Code - Secondary Heated Oxygen Sensor 2 Circuit Low Voltage

Quick Answer

The P0137 diagnostic trouble code (DTC) for a 2018 Honda CR-V refers to the Secondary Heated Oxygen Sensor 2 Circuit Low Voltage. Common causes include Faulty secondary heated oxygen sensor, Damaged wiring or connectors, Exhaust leaks near the oxygen 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
P0137 2018 Honda CR-V indicates Secondary Heated Oxygen Sensor 2 Circuit Low Voltage.
Common causes
Common causes include Faulty secondary heated oxygen sensor, Damaged wiring or connectors, Exhaust leaks near the oxygen 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.
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P0137 2018 Honda CR-V Description

The P0137 diagnostic trouble code (DTC) for a 2018 Honda CR-V refers to the Secondary Heated Oxygen Sensor 2 Circuit Low Voltage. This code indicates that the oxygen sensor located after the catalytic converter is detecting a lower than expected voltage signal. The oxygen sensor plays a crucial role in monitoring the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion.

OBDII Code P0137 2018 Honda CR-V - Secondary Heated Oxygen Sensor 2 Circuit Low Voltage
P0137 2018 Honda CR-V Code - Secondary Heated Oxygen Sensor 2 Circuit Low Voltage

Common Causes of P0137 2018 Honda CR-V

  1. Faulty secondary heated oxygen sensor
  2. Damaged wiring or connectors
  3. Exhaust leaks near the oxygen sensor
  4. Issues with the engine control module (ECM)
  5. Contaminated or deteriorated oxygen sensor

Symptoms of P0137 2018 Honda CR-V

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Engine hesitation during acceleration
  4. Illuminated check engine light
  5. Failed emissions test

How to Fix P0137 2018 Honda CR-V

  1. Begin by diagnosing the issue using a scan tool to confirm the P0137 code and pinpoint the exact cause.
  2. Inspect the secondary heated oxygen sensor and its wiring for any visible damage or corrosion.
  3. Test the oxygen sensor's voltage output to determine if it is functioning within specifications.
  4. Replace the secondary heated oxygen sensor if it is found to be faulty, ensuring proper installation and connection.
  5. Clear the DTC and perform a test drive to verify that the issue has been resolved.

Cost to Fix P0137 2018 Honda CR-V

The typical repair costs for addressing a P0137 code on a 2018 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 advisable to check local rates for a more precise estimate before proceeding with the repair.

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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 P0137 2018 Honda CR-V Code

1. What does the OBDII code P0137 mean on a 2018 Honda CR-V?

P0137 indicates that the voltage from the Secondary Heated Oxygen Sensor (Bank 1, Sensor 2) is lower than the expected range, often pointing to an issue with the sensor or its circuit.

2. What are the common symptoms of P0137 on a 2018 Honda CR-V?

Symptoms include an illuminated Check Engine Light, decreased fuel efficiency, rough idling, or a failed emissions test.

3. What causes the P0137 code on a 2018 Honda CR-V?

Potential causes include a faulty oxygen sensor, damaged wiring or connectors, a leak in the exhaust system, or issues with the vehicle’s powertrain control module (PCM).

4. Can I drive my 2018 Honda CR-V with a P0137 code?

While the car may still be drivable, it’s not recommended to ignore the issue as it can lead to decreased performance and potential damage to the catalytic converter over time.

5. How do I diagnose the P0137 code on a 2018 Honda CR-V?

Diagnose the code by inspecting the oxygen sensor and its wiring for damage, checking for exhaust leaks, and using a scan tool to monitor sensor voltage readings.

6. How do I fix the P0137 code on a 2018 Honda CR-V?

Repairs may involve replacing the faulty oxygen sensor, repairing or replacing damaged wiring, fixing any exhaust leaks, or updating the PCM if necessary.

7. How much does it cost to repair a P0137 code on a 2018 Honda CR-V?

Replacing the oxygen sensor typically costs $150 to $400, including parts and labor, but costs may vary depending on the exact issue.

8. Can a dirty or clogged catalytic converter cause the P0137 code?

Yes, a clogged catalytic converter can restrict exhaust flow and affect sensor readings, potentially triggering the P0137 code.

9. How can I prevent the P0137 code from appearing on my 2018 Honda CR-V?

Regular maintenance, such as routine inspection of the exhaust system and oxygen sensors, can help prevent this code from appearing.

10. Does a P0137 code always mean the oxygen sensor is faulty?

No, the issue could also be caused by wiring problems, exhaust leaks, or a malfunctioning PCM, so proper diagnosis is essential.

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