P0050 2017 GMC Sierra Code - HO2S Heater Control Circuit Bank 2 Sensor 1
Quick Answer
Heated Oxygen Sensors (HO2S) are used for fuel control and post catalyst monitoring. Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1, Heated Oxygen Sensor Bank 2 Sensor 1 harness is open shorted, Heated Oxygen Sensor Bank 2 Sensor 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
- P0050 2017 GMC Sierra indicates HO2S Heater Control Circuit Bank 2 Sensor 1.
- Common causes
- Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1, Heated Oxygen Sensor Bank 2 Sensor 1 harness is open shorted, Heated Oxygen Sensor Bank 2 Sensor 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 P0050 2017 GMC Sierra Description
The Diagnostic Trouble Code (DTC) will be set when the ECM detects an open circuit in the heater output low side driver circuit of the heated oxygen sensor when the heater is commanded OFF for greater than 5 s.
What are the Possible Causes of the DTC P0050 2017 GMC Sierra?
- Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1
- Heated Oxygen Sensor Bank 2 Sensor 1 harness is open shorted
- Heated Oxygen Sensor Bank 2 Sensor 1 circuit poor electrical connection
- Heated Oxygen Sensor Bank 2 Sensor 1 fuse
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0050 2017 GMC Sierra?
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
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0050 2017 GMC Sierra 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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Frequently Asked Questions about P0050 2017 GMC Sierra Code
What does the OBDII code P0050 mean for a 2017 GMC Sierra?
P0050 indicates an issue with the Heater Control Circuit for the Bank 2 Sensor 1 oxygen sensor, which helps regulate the sensor's temperature for accurate readings.
What are the common symptoms of code P0050 in a 2017 GMC Sierra?
Common symptoms include an illuminated check engine light, reduced fuel efficiency, poor engine performance, or difficulty passing emissions tests.
What causes the P0050 code to appear on a 2017 GMC Sierra?
Possible causes include a faulty oxygen sensor heater, damaged wiring or connectors, a blown fuse, or issues with the engine control module (ECM).
Which oxygen sensor is affected by the P0050 code on a 2017 GMC Sierra?
P0050 pertains to the heater circuit of Bank 2 Sensor 1, which is the upstream oxygen sensor on the side of the engine opposite cylinder 1.
Can I drive my 2017 GMC Sierra with the P0050 code?
Driving with this code is possible, but it's not recommended for extended periods as it may lead to reduced fuel economy and potential damage to the catalytic converter.
How can I diagnose the P0050 code in a 2017 GMC Sierra?
Diagnosis involves checking the oxygen sensor wiring, testing the heater circuit with a multimeter, inspecting the fuse, and using a scan tool to monitor sensor operation.
How do I fix the P0050 code on a 2017 GMC Sierra?
Repairs may include replacing the faulty oxygen sensor, repairing or replacing damaged wiring or connectors, or replacing a blown fuse.
How much does it cost to fix the P0050 code on a 2017 GMC Sierra?
Repair costs vary, but replacing an oxygen sensor typically ranges from $150 to $400, including parts and labor.
Can a bad oxygen sensor trigger the P0050 code on a 2017 GMC Sierra?
Yes, a malfunctioning oxygen sensor, particularly its heater element, is a common cause of the P0050 code.
How do I prevent the P0050 code from returning on my 2017 GMC Sierra?
Regular maintenance, inspecting oxygen sensor wiring, and addressing check engine light issues promptly can help prevent recurrence of this code.
Discuss the causes and fixes for P0050 2017 GMC Sierra OBDII Code
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