AutoCodes – Honda – P0137 1999 Honda Civic

P0137 1999 Honda Civic 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 1999 Honda Civic 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 9,168

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 Mar 31, 2024

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0137 1999 Honda Civic 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 1999 Honda Civic - O2 Sensor Circuit Low Voltage Bank 1 Sensor 2 - AutoCodes.com — P0137 1999 Honda Civic Code - O2 Sensor Circuit Low Voltage Bank 1 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P0137 1999 Honda Civic?

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 1999 Honda Civic?

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 usually takes care of the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0137 1999 Honda Civic 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 1999 Honda Civic Code

1. What does the OBDII code P0137 for a 1999 Honda Civic mean?

The code P0137 on a 1999 Honda Civic indicates a low voltage condition in the O2 sensor circuit for Bank 1 Sensor 2.

2. What are the common symptoms of O2 Sensor Circuit Low Voltage Bank 1 Sensor 2 in a 1999 Honda Civic?

Common symptoms include poor fuel economy, rough idling, hesitation during acceleration, and the illumination of the Check Engine Light.

3. What are the possible causes of OBDII code P0137 in a 1999 Honda Civic?

Potential causes of code P0137 on a 1999 Honda Civic include a faulty O2 sensor, damaged wiring or connectors in the O2 sensor circuit, or an exhaust leak near the sensor.

4. How can I diagnose the O2 Sensor Circuit Low Voltage issue in a 1999 Honda Civic?

You can diagnose the problem by using a scan tool to read the OBDII trouble codes, inspecting the O2 sensor wiring and connectors, and testing the sensor's voltage output.

5. Can I drive my 1999 Honda Civic with the P0137 code?

It is generally safe to drive your Honda Civic with the P0137 code, but it is recommended to address the issue promptly to prevent further damage and ensure optimal performance.

6. How do I repair the O2 Sensor Circuit Low Voltage Bank 1 Sensor 2 problem in my 1999 Honda Civic?

Repair options include replacing the Bank 1 Sensor 2 O2 sensor, repairing or replacing damaged wiring or connectors, and addressing any exhaust leaks near the sensor.

7. Is it necessary to reset the Check Engine Light after fixing the P0137 code in a 1999 Honda Civic?

Yes, it is recommended to reset the Check Engine Light using a scan tool after fixing the P0137 code to clear the stored fault codes and ensure proper monitoring of the vehicle's systems.

8. How much does it cost to replace the Bank 1 Sensor 2 O2 sensor in a 1999 Honda Civic?

The cost of replacing the O2 sensor can vary depending on the brand, quality, and labor costs, but it generally ranges from $100 to $300 for the part and installation.

9. Are there any DIY tips for fixing the O2 Sensor Circuit Low Voltage issue in a 1999 Honda Civic?

DIY tips include ensuring the engine is cool before working on the sensor, using the appropriate tools for the job, and following a detailed repair guide or manual for your specific vehicle.

10. How often should the O2 sensors be checked or replaced in a 1999 Honda Civic?

O2 sensors typically last 50,000 to 100,000 miles, but it is recommended to check them during regular maintenance intervals and replace them if any issues or fault codes arise.