P0059 GMC Code - HO2S Heater Resistance Bank 2 Sensor 1
Quick Answer
The P0059 GMC code refers to an issue with the HO2S (Heated Oxygen Sensor) Heater Resistance in Bank 2 Sensor 1. Common causes include Faulty oxygen sensor heater element, Wiring or connector issues in the oxygen sensor circuit, ECM software or hardware issues. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0059 GMC indicates HO2S Heater Resistance Bank 2 Sensor 1.
- Common causes
- Common causes include Faulty oxygen sensor heater element, Wiring or connector issues in the oxygen sensor circuit, ECM software or hardware issues.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0059 GMC Description
The P0059 GMC code refers to an issue with the HO2S (Heated Oxygen Sensor) Heater Resistance in Bank 2 Sensor 1. This sensor is responsible for measuring the oxygen content in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion. The heater element in the sensor helps it reach operating temperature quickly for accurate readings.
Common Causes of P0059 GMC
- Faulty oxygen sensor heater element.
- Wiring or connector issues in the oxygen sensor circuit.
- ECM software or hardware issues.
- Exhaust leaks near the oxygen sensor.
- Corrosion or contamination on the sensor connectors.
Symptoms of P0059 GMC
- Check Engine Light illuminated on the dashboard.
- Decreased fuel efficiency.
- Rough idling or stalling.
- Engine misfires.
- Increased emissions.
How to Fix P0059 GMC
- Diagnose the issue by using a scan tool to verify the P0059 code and inspect the oxygen sensor and its wiring.
- Test the oxygen sensor heater circuit for resistance and continuity to determine if the sensor heater element is faulty.
- Replace the Bank 2 Sensor 1 oxygen sensor if the heater circuit is found to have high resistance.
- Clear the code from the ECM memory and perform a test drive to ensure the issue has been resolved.
- If the code persists, further diagnostics may be needed to check for wiring issues or ECM malfunctions.
Cost to Fix P0059 GMC
The cost of repairing the P0059 GMC code can vary depending on the make and model of the vehicle, the location of the repair shop, and the cost of the replacement oxygen sensor. On average, the parts for this repair can range from $100 to $300, while labor costs can range from $80 to $150 per hour. Overall, the total repair cost for this issue can be estimated to be between $200 and $500. It's recommended to obtain quotes from local auto repair shops to get a more accurate estimate based on individual circumstances.
Tech Notes for P0059 GMC
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Information for Specific GMC Models
- P0059 2014 GMC Sierra — HO2S Heater Resistance Bank 2 Sensor 1
- P0059 2015 GMC Sierra — HO2S Heater Resistance Bank 2 Sensor 1
- P0059 2016 GMC Sierra — HO2S Heater Resistance Bank 2 Sensor 1
- P0059 2017 GMC Sierra — HO2S Heater Resistance Bank 2 Sensor 1
- P0059 2018 GMC Sierra — HO2S Heater Resistance Bank 2 Sensor 1
Frequently Asked Questions about P0059 GMC Code
1. What does the OBDII code P0059 for a GMC mean?
This code indicates a malfunction in the HO2S (Heated Oxygen Sensor) heater circuit for Bank 2 Sensor 1.
2. What are the common symptoms of a P0059 error code?
Common symptoms include poor fuel economy, rough idling, stalling, and illuminated Check Engine Light.
3. What can cause the P0059 code to trigger in a GMC vehicle?
Possible causes include a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or issues with the vehicle's computer system.
4. How can I diagnose the source of a P0059 trouble code?
Using a scan tool to retrieve the code and inspecting the oxygen sensor, wiring, and related components can help pinpoint the issue.
5. Can I continue driving with a P0059 error code present?
It is not recommended to drive for an extended period with this code as it can lead to poor engine performance and potential damage over time.
6. What is the typical repair for a P0059 GMC error code?
Repair usually involves replacing the faulty oxygen sensor, repairing damaged wiring, or addressing any other issues causing the heater circuit malfunction.
7. Are there any DIY repair tips for fixing a P0059 code?
While some may attempt to replace the oxygen sensor themselves, it's best to consult a professional to ensure proper diagnosis and repair.
8. Is it necessary to reset the error code after making repairs for P0059?
Yes, clearing the code with a scan tool after repairs allows the vehicle's computer to monitor the system for any recurring issues.
9. How much does it cost to fix a P0059 error in a GMC vehicle?
Costs can vary depending on the exact cause of the issue, but it typically ranges from $200 to $400 for parts and labor.
10. Can a P0059 error code be prevented in the future?
Regular maintenance and timely replacement of oxygen sensors can help prevent issues like the P0059 code from occurring in the future.
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