AutoCodes – Honda – P0137 2010 Honda Accord

P0137 2010 Honda Accord Code - O2 Sensor Circuit Low Voltage Bank 1 Sensor 2

Quick Answer

The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted, Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection. 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 2010 Honda Accord indicates O2 Sensor Circuit Low Voltage Bank 1 Sensor 2.
Common causes: Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted, Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection.
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 Popularity 11,988

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Dec 14, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0137 2010 Honda Accord Description

The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. For optimum catalyst operation, the air fuel mixture (air-fuel ratio) must be maintained near the ideal stoichiometric ratio. The HO2S output voltage changes suddenly in the vicinity of the stoichiometric ratio. The Engine Control Module (ECM) adjusts the fuel injection time so that the air-fuel ratio is nearly stoichiometric. The HO2S generates a voltage between 0.1 and 0.9 V in response to oxygen in the exhaust gas. If the oxygen in the exhaust gas increases, the air-fuel ratio becomes Lean. The ECM interprets Lean when the HO2S voltage is below 0.45 V. If the oxygen in the exhaust gas decreases, the air-fuel ratio becomes Rich. The ECM interprets Rich when the HO2S voltage is above 0.45 V.

OBDII Code P0137 2010 Honda Accord - O2 Sensor Circuit Low Voltage Bank 1 Sensor 2 - AutoCodes.com — P0137 2010 Honda Accord Code - O2 Sensor Circuit Low Voltage Bank 1 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P0137 2010 Honda Accord?

Faulty Rear Heated Oxygen Sensor Bank 1
Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
Inappropriate fuel pressure
Faulty fuel injectors
Intake air leaks may be faulty
Exhaust gas leaks

How to Fix the DTC P0137 2010 Honda Accord?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

Replacing the rear O2 Sensor bank 1 sensor 2 usually takes care of the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0137 2010 Honda Accord code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 2010 Honda Accord Code

1. What does OBDII code P0137 on a 2010 Honda Accord mean?

It indicates a low voltage condition in the O2 sensor circuit for Bank 1 Sensor 2, also known as the downstream oxygen sensor.

2. What are the common symptoms of O2 sensor circuit low voltage (P0137) in a 2010 Honda Accord?

Common symptoms include poor fuel economy, rough idling, failed emissions test, and the illumination of the check engine light.

3. What are the possible causes of OBDII code P0137 on a 2010 Honda Accord?

Potential causes include a faulty 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 O2 sensor circuit low voltage issue (P0137) in my 2010 Honda Accord?

You can diagnose the problem by checking the oxygen sensor's voltage output, inspecting the sensor's wiring and connectors for damage, and performing a visual inspection of the exhaust system.

5. Can I continue driving my 2010 Honda Accord with OBDII code P0137?

It is not recommended to ignore this issue, as it can lead to decreased fuel efficiency and potential damage to the catalytic converter. It's best to address the problem promptly.

6. How do I repair O2 sensor circuit low voltage (P0137) on a 2010 Honda Accord?

The repair may involve replacing the downstream oxygen sensor, repairing or replacing damaged wiring/connectors, fixing any exhaust leaks, or addressing issues with the engine's air-fuel mixture.

7. Is it possible to reset the check engine light after fixing OBDII code P0137 on a 2010 Honda Accord?

Yes, once the issue has been resolved, you can reset the check engine light using an OBDII scanner or by disconnecting the car's battery for a few minutes.

8. Can a dirty air filter cause O2 sensor circuit low voltage (P0137) in a 2010 Honda Accord?

While a dirty air filter may impact engine performance, it is unlikely to directly cause O2 sensor circuit low voltage. Focus on checking the sensor, wiring, and exhaust system first.

9. How much does it typically cost to repair O2 sensor circuit low voltage (P0137) on a 2010 Honda Accord?

The cost can vary depending on the exact cause of the issue and whether you choose to replace the sensor yourself or have a professional technician diagnose and repair the problem.

10. How often should the oxygen sensors be inspected or replaced in a 2010 Honda Accord to prevent O2 sensor circuit low voltage issues?

It is recommended to follow the manufacturer's maintenance schedule, which may suggest inspecting or replacing oxygen sensors every 60,000 to 100,000 miles to ensure optimal engine performance and emissions control.