AutoCodes – Chevrolet – P0059 Chevrolet

P0059 Chevrolet 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 Chevrolet 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 7,477

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 23, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0059 Chevrolet 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 Chevrolet - HO2S Heater Resistance Bank 2 Sensor 1 - AutoCodes.com — P0059 Chevrolet Code - HO2S Heater Resistance Bank 2 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P0059 Chevrolet?

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 Chevrolet?

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 Chevrolet 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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Information for Specific Chevrolet Models

P0059 2014 Chevrolet Silverado — HO2S Heater Resistance Bank 2 Sensor 1
P0059 2015 Chevrolet Silverado — HO2S Heater Resistance Bank 2 Sensor 1
P0059 2016 Chevrolet Silverado — HO2S Heater Resistance Bank 2 Sensor 1
P0059 2017 Chevrolet Silverado — HO2S Heater Resistance Bank 2 Sensor 1
P0059 2018 Chevrolet Silverado — HO2S Heater Resistance Bank 2 Sensor 1

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 Chevrolet Code

1. What does the OBDII code P0059 for a Chevrolet indicate?

The code P0059 indicates an issue with the HO2S (Heated Oxygen Sensor) heater resistance in Bank 2 Sensor 1.

2. What are the common symptoms of a P0059 code in a Chevrolet?

Common symptoms include poor fuel economy, engine misfires, rough idling, and a noticeable decrease in engine performance.

3. What are the possible causes of a P0059 code in a Chevrolet?

Possible causes include a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or issues with the engine control module (ECM).

4. How can I diagnose a P0059 code in my Chevrolet?

Diagnosing a P0059 code involves checking the wiring and connectors for damage, verifying the fuse is intact, and testing the oxygen sensor's resistance using a multimeter.

5. How can I repair a P0059 code in my Chevrolet?

Repairing a P0059 code may involve replacing the Bank 2 Sensor 1 oxygen sensor, repairing damaged wiring or connectors, or addressing any ECM issues that are present.

6. Can I drive my Chevrolet with a P0059 code?

It is not recommended to drive your Chevrolet with a P0059 code, as it can lead to decreased performance and potential damage to the catalytic converter over time.

7. How much does it typically cost to repair a P0059 code in a Chevrolet?

The cost of repairing a P0059 code can vary depending on the exact cause of the issue, but it may range from $150 to $400 for parts and labor.

8. Will a P0059 code cause my Chevrolet to fail an emissions test?

Yes, a P0059 code can cause your Chevrolet to fail an emissions test due to the impact it has on the vehicle's fuel efficiency and emissions output.

9. How long does it take to repair a P0059 code in a Chevrolet?

The repair time for a P0059 code can vary depending on the exact cause of the issue and the availability of parts, but it typically takes 1-2 hours to complete the repair.

10. Can I reset a P0059 code in my Chevrolet without fixing the underlying issue?

While you can clear the code using an OBDII scanner, it is not recommended to reset the code without addressing the underlying problem, as it will likely reappear and potentially cause further damage.