AutoCodes – Chevrolet – P0137 2014 Chevrolet Silverado

P0137 2014 Chevrolet Silverado Code - HO2S Circuit Low Voltage Bank 1 Sensor 2

Quick Answer

The Heated Oxygen Sensors (HO2S) are used for fuel control and catalyst monitoring. 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 2014 Chevrolet Silverado indicates HO2S 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 537

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 May 26, 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 2014 Chevrolet Silverado Description

The Heated Oxygen Sensors (HO2S) are used for fuel control and catalyst monitoring. Each HO2S compares the oxygen content of the surrounding air with the oxygen content of the exhaust stream. When the engine is started, the Engine Control Module (ECM) operates in an Open Loop mode, ignoring the HO2S signal voltage while calculating the air-to-fuel ratio. While the engine runs, the HO2S heats up and begins to generate a voltage within a range of 0 - 1, 000 mV. Once sufficient HO2S voltage fluctuation is observed by the ECM, Closed Loop is entered. The ECM uses the HO2S voltage to determine the air-to-fuel ratio. An HO2S voltage that increases toward 1, 000 mV indicates a rich fuel mixture. An HO2S voltage that decreases toward 0 mV indicates a lean fuel mixture.
The heating elements inside each HO2S heat the sensor to bring the sensor up to operating conditions faster. This allows the system to enter Closed Loop earlier and the ECM to calculate the air-to-fuel ratio sooner.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the heated oxygen sensor is shorted to ground if the HO2S voltage is less than 50 mV.

OBDII Code P0137 2014 Chevrolet Silverado - HO2S Circuit Low Voltage Bank 1 Sensor 2 - AutoCodes.com — P0137 2014 Chevrolet Silverado Code - HO2S Circuit Low Voltage Bank 1 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P0137 2014 Chevrolet Silverado?

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
Low or high fuel system pressure
Fuel contamination
Faulty fuel injectors
Exhaust gas leaks
Engine vacuum leaks

How to Fix the DTC P0137 2014 Chevrolet Silverado?

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 Heated Oxygen Sensor (HO2S) 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 2014 Chevrolet Silverado 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 2014 Chevrolet Silverado Code

1. What does the OBDII code P0137 on my 2014 Chevrolet Silverado mean?

This code indicates a low voltage condition in the HO2S (Heated Oxygen Sensor) circuit for Bank 1 Sensor 2.

2. What are the common symptoms of the P0137 code in a 2014 Chevrolet Silverado?

Common symptoms include decreased fuel efficiency, rough idling, engine misfires, and the illumination of the check engine light.

3. What are the possible causes of the P0137 code in a 2014 Chevrolet Silverado?

Potential causes include a faulty oxygen sensor, damaged wiring or connectors in the sensor circuit, exhaust leaks, or issues with the engine's fuel system.

4. How can I diagnose the P0137 code on my 2014 Chevrolet Silverado?

Diagnosis typically involves using a scan tool to retrieve the code, inspecting the oxygen sensor and its wiring for damage, and checking for exhaust leaks or other related issues.

5. Can I continue driving my 2014 Chevrolet Silverado with the P0137 code present?

It is not recommended to drive with the P0137 code unresolved, as it can lead to reduced fuel efficiency and potentially cause damage to other engine components over time.

6. How can I repair the P0137 code on my 2014 Chevrolet Silverado?

Repair options may include replacing the Bank 1 Sensor 2 oxygen sensor, repairing or replacing damaged wiring or connectors, fixing exhaust leaks, or addressing any fuel system issues.

7. Are there any DIY tips for fixing the P0137 code on a 2014 Chevrolet Silverado?

While some simple tasks like checking and cleaning sensor connectors can be done by DIY enthusiasts, diagnosing and repairing the root cause of the P0137 code may require professional help.

8. How much does it typically cost to repair the P0137 code on a 2014 Chevrolet Silverado?

The cost of repairs for the P0137 code can vary depending on the underlying issue, but it may range from $100 to $300 or more, including parts and labor.

9. How long does it take to fix the P0137 code on a 2014 Chevrolet Silverado?

The repair time for the P0137 code can vary based on the specific issue, but it typically takes a few hours to complete the necessary diagnostic tests and repairs.

10. Is the P0137 code a common issue in 2014 Chevrolet Silverado vehicles?

While the P0137 code can occur in various vehicles, including the 2014 Chevrolet Silverado, its frequency may vary depending on factors like mileage, maintenance history, and driving conditions.