AutoCodes – Acura – P0137 Acura

P0137 Acura Code - Secondary Heated Oxygen Sensor 2 Circuit Low Voltage

Quick Answer

The Secondary Heated Oxygen Sensor (Secondary HO2S or Sensor 2) is a component in your vehicle's exhaust system that detects oxygen levels in the exhaust gas. Common causes include Faulty Secondary Heated Oxygen Sensor 2, Secondary Heated Oxygen Sensor 2 harness is open or shorted, Secondary Heated Oxygen Sensor 2 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 Acura indicates Secondary Heated Oxygen Sensor 2 Circuit Low Voltage.
Common causes: Common causes include Faulty Secondary Heated Oxygen Sensor 2, Secondary Heated Oxygen Sensor 2 harness is open or shorted, Secondary Heated Oxygen Sensor 2 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 4,592

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 Aug 11, 2023

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

The Secondary Heated Oxygen Sensor (Secondary HO2S or Sensor 2) is a component in your vehicle's exhaust system that detects oxygen levels in the exhaust gas. It then converts this information into electrical signals. If the sensor's output voltage remains steady at a specified value for a certain duration, the vehicle's onboard computer, known as the Powertrain Control Module (PCM), identifies this as a potential problem. In response, the PCM stores a Diagnostic Trouble Code (DTC) to indicate the issue for diagnostic purposes. This system helps ensure the vehicle's emissions control system is functioning correctly, contributing to optimal engine performance and emissions reduction.

OBDII Code P0137 Acura - Secondary Heated Oxygen Sensor 2 Circuit Low Voltage - AutoCodes.com — P0137 Acura Code - Secondary Heated Oxygen Sensor 2 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0137 Acura?

Faulty Secondary Heated Oxygen Sensor 2
Secondary Heated Oxygen Sensor 2 harness is open or shorted
Secondary Heated Oxygen Sensor 2 circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0137 Acura?

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.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0137 Acura 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 Acura Code

1. What does OBDII code P0137 for an Acura indicate?

The code P0137 for an Acura signifies an issue with the Secondary Heated Oxygen Sensor 2 Circuit, specifically low voltage being detected.

2. What are common symptoms of OBDII code P0137 in an Acura?

Common symptoms of OBDII code P0137 in an Acura may include poor fuel economy, rough idling, engine misfires, and a decrease in overall vehicle performance.

3. What are the possible causes of OBDII code P0137 in an Acura?

Potential causes of OBDII code P0137 in an Acura include a faulty secondary heated oxygen sensor, damaged wiring or connectors in the sensor circuit, exhaust leaks, or issues with the engine's air/fuel mixture.

4. How can I diagnose the cause of OBDII code P0137 in my Acura?

To diagnose the cause of OBDII code P0137 in your Acura, you can use a scan tool to monitor sensor data, visually inspect the sensor and its wiring for any visible damage, and perform specific tests to identify the issue accurately.

5. Is it safe to continue driving my Acura with OBDII code P0137?

It is not recommended to continue driving your Acura with OBDII code P0137 as it can lead to further damage to the vehicle's engine and emissions system, potentially resulting in more costly repairs.

6. How can I repair OBDII code P0137 in my Acura?

To repair OBDII code P0137 in your Acura, you may need to replace the secondary heated oxygen sensor, repair or replace damaged wiring or connectors, fix any exhaust leaks, and ensure the engine's air/fuel mixture is within the correct parameters.

7. Can I reset OBDII code P0137 in my Acura by disconnecting the battery?

While disconnecting the battery may temporarily clear the code, it is not a recommended method for resolving the underlying issue causing OBDII code P0137. It is best to diagnose and repair the problem to prevent the code from reappearing.

8. How much does it typically cost to repair OBDII code P0137 in an Acura?

The cost of repairing OBDII code P0137 in an Acura can vary depending on the specific cause of the issue, the labor rates of the repair shop, and the cost of any replacement parts needed. It is advisable to get a professional diagnosis and estimate for an accurate cost.

9. Can a DIY enthusiast fix OBDII code P0137 in an Acura?

While some DIY enthusiasts may have the skills to diagnose and repair OBDII code P0137 in an Acura, it is recommended to have a professional mechanic perform the diagnosis and repair to ensure the issue is properly addressed and resolved.

10. How can I prevent OBDII code P0137 from occurring in my Acura in the future?

To prevent OBDII code P0137 from occurring in your Acura in the future, it is essential to perform regular maintenance on the vehicle, including checking and replacing oxygen sensors as recommended, addressing any engine performance issues promptly, and keeping the exhaust system in good condition.