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P0059 2018 Chevrolet Silverado Code - HO2S Heater Resistance Bank 2 Sensor 1

Quick Answer

The P0059 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado refers to an issue with the HO2S (Heated Oxygen Sensor) heater circuit in Bank 2 Sensor 1. Common causes include Faulty oxygen sensor, Damaged wiring or connectors in the heater circuit, Blown fuse related to the sensor heater. 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 2018 Chevrolet Silverado indicates HO2S Heater Resistance Bank 2 Sensor 1.
Common causes
Common causes include Faulty oxygen sensor, Damaged wiring or connectors in the heater circuit, Blown fuse related to the sensor heater.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 25, 2024
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Code P0059 2018 Chevrolet Silverado Description

The P0059 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado refers to an issue with the HO2S (Heated Oxygen Sensor) heater circuit in Bank 2 Sensor 1. This sensor is responsible for monitoring the oxygen levels 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, allowing it to provide accurate readings sooner after engine startup.

OBDII Code P0059 2018 Chevrolet Silverado - HO2S Heater Resistance Bank 2 Sensor 1
P0059 2018 Chevrolet Silverado Code - HO2S Heater Resistance Bank 2 Sensor 1

Common Causes of P0059 2018 Chevrolet Silverado

  1. Faulty oxygen sensor
  2. Damaged wiring or connectors in the heater circuit
  3. Blown fuse related to the sensor heater
  4. ECM malfunction
  5. Corrosion or contamination in the sensor connections

Symptoms of P0059 2018 Chevrolet Silverado

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Hesitation during acceleration
  4. Illumination of the check engine light
  5. Increased emissions

How to Fix P0059 2018 Chevrolet Silverado

  1. Use an OBD-II scanner to confirm the P0059 code and identify Bank 2 Sensor 1.
  2. Inspect the sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the heater circuit with a multimeter to check for proper resistance.
  4. Replace the oxygen sensor if it fails the resistance test or shows signs of damage.
  5. Clear the DTC and test drive the vehicle to ensure the code does not return.

Cost to Fix P0059 2018 Chevrolet Silverado

The cost of repairing a P0059 code on a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, replacing the oxygen sensor itself can range from $100 to $300, while labor costs at an auto repair shop may add another $100 to $200. Additional costs for diagnostic time, parts, and taxes should also be factored in. It's recommended to consult with a trusted mechanic or dealership for a more accurate estimate based on your location and vehicle specifications.

What does this mean?

Tech Notes for P0059 2018 Chevrolet Silverado

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.

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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 2018 Chevrolet Silverado Code

1. What does the OBDII code P0059 mean on a 2018 Chevrolet Silverado?

P0059 indicates an issue with the heater circuit resistance for the oxygen sensor (HO2S) on Bank 2 Sensor 1, which is located on the exhaust system before the catalytic converter on the side opposite Cylinder 1.

2. What are common symptoms of the P0059 code in a 2018 Chevy Silverado?

Common symptoms include the check engine light turning on, possible poor fuel economy, rough idling, and difficulty passing emissions tests.

3. What causes the P0059 code in a 2018 Chevrolet Silverado?

Possible causes include a faulty oxygen sensor, damaged wiring or connectors in the heater circuit, a blown fuse, or a malfunctioning powertrain control module (PCM).

4. How do you diagnose the P0059 code in a Chevy Silverado?

Start by scanning for codes and inspecting the wiring and connectors for damage, check the oxygen sensor heater resistance with a multimeter, and verify fuse integrity in the heater circuit.

5. Can you drive a 2018 Chevrolet Silverado with the P0059 code?

While the truck may still be drivable, ignoring the P0059 code can lead to increased emissions, reduced fuel efficiency, and potential damage to other components.

6. How do you fix the P0059 code on a 2018 Chevy Silverado?

Repairs may include replacing the Bank 2 Sensor 1 oxygen sensor, repairing or replacing damaged wiring or connectors, and checking for and replacing blown fuses.

7. How much does it cost to fix the P0059 code on a 2018 Chevrolet Silverado?

The cost to replace an oxygen sensor typically ranges from $150 to $300, depending on labor rates and parts pricing, but additional repairs for wiring or the PCM may increase costs.

8. Will clearing the P0059 code solve the problem on a Chevy Silverado?

Clearing the code may temporarily turn off the check engine light, but it will not fix the underlying issue and the code is likely to return.

9. How can you prevent the P0059 code from occurring again?

Regular maintenance, including inspecting and replacing oxygen sensors as needed, checking wiring for damage, and ensuring proper electrical connections, can help prevent this code.

10. Is the P0059 code related to emissions problems in a 2018 Chevrolet Silverado?

Yes, the P0059 code can affect the operation of the oxygen sensor heater, which may disrupt the air-fuel ratio and lead to higher emissions.

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