P0137 2015 GMC Sierra Code - HO2S Circuit Low Voltage Bank 1 Sensor 2
Quick Answer
The P0137 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates an issue with the HO2S (Heated Oxygen Sensor) circuit having low voltage on Bank 1 Sensor 2. Common causes include Faulty HO2S (Bank 1 Sensor 2), Damaged wiring or connectors in the sensor circuit, Exhaust leaks near the sensor. 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 2015 GMC Sierra indicates HO2S Circuit Low Voltage Bank 1 Sensor 2.
- Common causes
- Common causes include Faulty HO2S (Bank 1 Sensor 2), Damaged wiring or connectors in the sensor circuit, Exhaust leaks near the sensor.
- 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 P0137 2015 GMC Sierra Description
The P0137 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates an issue with the HO2S (Heated Oxygen Sensor) circuit having low voltage on Bank 1 Sensor 2. The HO2S is responsible for monitoring the oxygen levels in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion. Bank 1 Sensor 2 refers to the sensor located downstream of the catalytic converter on the side of the engine with cylinder 1.
Common Causes of P0137 2015 GMC Sierra
- Faulty HO2S (Bank 1 Sensor 2)
- Damaged wiring or connectors in the sensor circuit
- Exhaust leaks near the sensor
- ECM malfunction
- Contaminated sensor due to oil or coolant leaks
Symptoms of P0137 2015 GMC Sierra
- Check Engine Light illuminated on the dashboard
- Decreased fuel efficiency
- Rough idling or stalling
- Poor acceleration or engine performance
- Increased emissions output
How to Fix P0137 2015 GMC Sierra
- Begin by using an OBD-II scanner to confirm the P0137 code and verify that it is related to the HO2S Bank 1 Sensor 2.
- Inspect the wiring and connectors for any damage or corrosion. Repair or replace as necessary.
- Check for exhaust leaks near the sensor and repair them to prevent false readings.
- Replace the HO2S Bank 1 Sensor 2 if it is found to be faulty.
- Clear the DTC and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0137 2015 GMC Sierra
The typical repair costs for addressing a P0137 code on a 2015 GMC Sierra can range from $150 to $400, including parts and labor. However, specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to check with local shops for a more accurate estimate. Keep in mind that rates may be higher in metropolitan areas or at dealerships, while independent shops often offer more competitive prices.
Tech Notes for P0137 2015 GMC Sierra
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