P0137 Chevrolet 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 Chevrolet 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.
Code P0137 Chevrolet Description
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.
What are the Possible Causes of the DTC P0137 Chevrolet?
- 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 Chevrolet?
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.
Code Tech Notes
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What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0137 Chevrolet 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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Information for Specific Chevrolet Models
- P0137 2014 Chevrolet Silverado — HO2S Circuit Low Voltage Bank 1 Sensor 2
- P0137 2015 Chevrolet Silverado — HO2S Circuit Low Voltage Bank 1 Sensor 2
- P0137 2016 Chevrolet Silverado — HO2S Circuit Low Voltage Bank 1 Sensor 2
- P0137 2017 Chevrolet Silverado — HO2S Circuit Low Voltage Bank 1 Sensor 2
- P0137 2018 Chevrolet Silverado — HO2S Circuit Low Voltage Bank 1 Sensor 2
Frequently Asked Questions about P0137 Chevrolet Code
1. What are the common symptoms of OBDII code P0137 on a Chevrolet?
- Common symptoms include decreased fuel efficiency, rough idling, engine hesitation, and the illumination of the check engine light.
2. What does the HO2S Circuit Low Voltage Bank 1 Sensor 2 code mean for a Chevrolet vehicle?
- This code indicates that the downstream oxygen sensor in Bank 1 is registering a voltage lower than normal, potentially causing issues with the fuel mixture.
3. What are the possible causes of the P0137 code on a Chevrolet?
- Possible causes include a faulty oxygen sensor, damaged wiring or connectors, exhaust leaks, engine misfires, or issues with the fuel system.
4. How can I diagnose the cause of the P0137 code on my Chevrolet?
- To diagnose the issue, you can use an OBDII scanner to read the code and monitor the oxygen sensor's voltage output. Additionally, inspect the sensor, wiring, and related components for any signs of damage.
5. Is it safe to continue driving with the P0137 code on a Chevrolet?
- While the vehicle may still be driveable with this code, it is not recommended to ignore it, as it can lead to further engine problems and decreased fuel efficiency.
6. Can I repair the P0137 code on a Chevrolet myself?
- Depending on your level of automotive expertise, you may be able to replace the oxygen sensor or repair wiring issues yourself. However, it is recommended to consult a professional if you are unsure.
7. How much does it typically cost to repair the P0137 code on a Chevrolet?
- The cost of repairs can vary depending on the exact cause of the code and the labor rates in your area. On average, expect to pay between $100 to $300 for parts and labor.
8. Are there any maintenance tips to prevent the P0137 code from reoccurring on a Chevrolet?
- Regularly inspecting and maintaining the oxygen sensors, fuel system, and exhaust system can help prevent issues that may trigger the P0137 code in the future.
9. Can a bad catalytic converter cause the P0137 code on a Chevrolet?
- A failing catalytic converter can sometimes lead to issues with oxygen sensor readings, potentially triggering the P0137 code. It is recommended to inspect the converter as part of the diagnostic process.
10. How long does it typically take to repair the P0137 code on a Chevrolet?
- The repair time can vary based on the specific issue causing the code. In general, a straightforward oxygen sensor replacement can be completed in about an hour, while more complex issues may take longer.
Discuss the causes and fixes for P0137 Chevrolet OBDII Code
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That is a real good post with easy solution. I have undergone many problems since the purchase so i need to check on it. I a sure this problem will arise sooner or later. Hope this post will be of help during the time of need.
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