AutoCodes – GMC – P0059 2016 GMC Sierra

P0059 2016 GMC Sierra 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 2016 GMC Sierra 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.

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Code Popularity 229

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0059 2016 GMC Sierra Description

Heated Oxygen Sensors (HO2S) are used for fuel control and post catalyst monitoring. Each HO2S compares the oxygen content of the surrounding air with the oxygen content in the exhaust stream. The HO2S must reach an operating temperature to provide an accurate voltage signal. A heating element inside the HO2S minimizes the time required for the sensors to reach operating temperature. Voltage is provided to the heater by an ignition voltage circuit through a fuse. With the engine running, the ground is provided to the heater by the HO2S heater low control circuit through a low side driver within the Engine Control Module (ECM). The ECM uses Pulse Width Modulation (PWM) to control the HO2S heater operation to maintain a specific HO2S operating temperature range.
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.

OBDII Code P0059 2016 GMC Sierra - HO2S Heater Resistance Bank 2 Sensor 1 - AutoCodes.com — P0059 2016 GMC Sierra Code - HO2S Heater Resistance Bank 2 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P0059 2016 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 circuit fuse
Faulty Engine Control Module (ECM)

How to Fix the DTC P0059 2016 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.

What does this mean?

Code Tech Notes

The code means that there is a problem with the heater element circuit of the heated oxygen sensor. The control module monitors how long it takes the sensor to warm up and start sending an adequate signal. The code is set when the sensor is taking too long to warm up. Water getting inside the heated oxygen sensor connector can cause the heated oxygen sensor fuse to blow. Before replacing the sensor, check for the condition of the heated oxygen sensor fuse and connectors. If the fuse and connector are OK, replacing the O2 Sensor usually takes care of the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0059 2016 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0059 2016 GMC Sierra Code

1. What does the OBDII code P0059 for a 2016 GMC Sierra indicate?

The code P0059 refers to a malfunction in the HO2S (Heated Oxygen Sensor) Heater Resistance for Bank 2 Sensor 1 in a 2016 GMC Sierra.

2. What are common symptoms of a P0059 trouble code in a 2016 GMC Sierra?

Common symptoms of a P0059 code may include poor fuel economy, rough idling, engine misfires, and an illuminated check engine light on the dashboard.

3. What are the potential causes of a P0059 trouble code in a 2016 GMC Sierra?

The P0059 code in a 2016 GMC Sierra can be triggered by issues such as a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or a problem with the engine control module.

4. How can I diagnose a P0059 trouble code in my 2016 GMC Sierra?

Diagnosing a P0059 code may involve using an OBDII scanner to retrieve the code, visually inspecting the wiring and connectors of the affected sensor, and testing the sensor's resistance with a multimeter.

5. Can I continue driving my 2016 GMC Sierra with a P0059 trouble code?

It is not recommended to drive your GMC Sierra with a P0059 code unaddressed, as it can lead to poor engine performance and potentially cause further damage to the vehicle over time.

6. How can I repair a P0059 trouble code in my 2016 GMC Sierra?

Repairing a P0059 code may involve replacing the faulty HO2S sensor, repairing or replacing damaged wiring or connectors, checking and replacing any blown fuses, and clearing the trouble code from the vehicle's computer.

7. Is it possible to prevent the recurrence of a P0059 trouble code in my 2016 GMC Sierra?

Regular maintenance, such as inspecting and replacing oxygen sensors at recommended intervals, ensuring proper electrical connections, and using quality fuel, can help prevent the recurrence of a P0059 trouble code.

8. Are there any DIY tips for addressing a P0059 trouble code in a 2016 GMC Sierra?

While some basic diagnostics can be done at home, it is recommended to consult a professional mechanic for a proper diagnosis and repair of a P0059 trouble code to ensure the issue is resolved correctly.

9. What is the typical cost to repair a P0059 trouble code in a 2016 GMC Sierra?

The cost of repairing a P0059 code in a 2016 GMC Sierra can vary depending on the exact cause of the issue, but it may range from $100 to $400, including parts and labor.

10. How long does it take to fix a P0059 trouble code in a 2016 GMC Sierra?

The repair time for a P0059 code can vary based on the specific cause and the mechanic's expertise, but it typically takes around 1 to 2 hours to diagnose and fix the issue in a 2016 GMC Sierra.