P0059 Buick Code - HO2S Heater Resistance 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 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 Buick indicates HO2S Heater Resistance 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
- 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.
Code P0059 Buick Description
The Diagnostic Trouble Code (DTC) will be set when the ECM detects the HO2S heater is not within a specified resistance range at engine start-up.
What are the Possible Causes of the DTC P0059 Buick?
- 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 circuit fuse
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0059 Buick?
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 P0059 Buick 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 P0059 Buick Code
1. What are the common symptoms of OBDII code P0059 in a Buick related to HO2S Heater Resistance Bank 2 Sensor 1?
The common symptoms include reduced fuel efficiency, rough idling, and the illumination of the Check Engine Light.
2. What are the possible causes of OBDII code P0059 in a Buick?
The code P0059 in a Buick is usually caused by a faulty HO2S (Heated Oxygen Sensor) Bank 2 Sensor 1, damaged wiring or connectors, or issues with the sensor's heater circuit.
3. How can I diagnose OBDII code P0059 in my Buick?
Diagnosing code P0059 involves using an OBDII scanner to retrieve the specific fault code, checking the wiring and connections for any damage, and testing the HO2S Bank 2 Sensor 1 for proper functionality.
4. Can I drive my Buick with the OBDII code P0059 present?
It is not recommended to drive your Buick with the code P0059 active, as it can lead to reduced engine performance and potential damage to the catalytic converter.
5. How can I repair OBDII code P0059 in my Buick?
Repairing code P0059 involves replacing the faulty HO2S Bank 2 Sensor 1, repairing any damaged wiring or connectors, and clearing the error codes with an OBDII scanner.
6. Are there any DIY tips for fixing OBDII code P0059 in my Buick?
While it is possible to replace the HO2S Bank 2 Sensor 1 yourself, it is recommended to have a professional mechanic diagnose and repair the issue to ensure proper installation and functionality.
7. How much does it cost to fix OBDII code P0059 in a Buick?
The cost of fixing code P0059 can vary depending on the cause of the issue, but it typically ranges from $150 to $300 for parts and labor.
8. What is the purpose of the HO2S heater in Bank 2 Sensor 1 of a Buick?
The HO2S heater in Bank 2 Sensor 1 of a Buick is designed to quickly heat up the oxygen sensor to ensure accurate readings and optimal engine performance, especially during cold starts.
9. Can a faulty HO2S Bank 2 Sensor 1 cause other issues in my Buick?
Yes, a faulty HO2S Bank 2 Sensor 1 can cause issues such as poor fuel economy, engine misfires, and increased emissions due to inaccurate oxygen sensor readings.
10. How often should the HO2S Bank 2 Sensor 1 be replaced in a Buick?
The HO2S Bank 2 Sensor 1 in a Buick typically lasts around 60,000 to 90,000 miles, but it is recommended to follow the manufacturer's maintenance schedule and replace it when necessary to avoid potential issues.
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