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P0135 2015 Chevrolet Silverado Code - HO2S Heater Performance Bank 1 Sensor 1

Quick Answer

The P0135 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado refers to the HO2S (Heated Oxygen Sensor) heater performance for Bank 1 Sensor 1. Common causes include Faulty oxygen sensor heater element, Wiring or connector issues in the oxygen sensor circuit, Blown fuse related to the oxygen sensor heater circuit. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P0135 2015 Chevrolet Silverado indicates HO2S Heater Performance Bank 1 Sensor 1.
Common causes
Common causes include Faulty oxygen sensor heater element, Wiring or connector issues in the oxygen sensor circuit, Blown fuse related to the oxygen sensor heater circuit.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
What is this?
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P0135 2015 Chevrolet Silverado Description

The P0135 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado refers to the HO2S (Heated Oxygen Sensor) heater performance for Bank 1 Sensor 1. This code indicates that there is a malfunction in the heating element of the oxygen sensor located in the exhaust system before the catalytic converter on the bank 1 side of the engine. The oxygen sensor plays a crucial role in monitoring and adjusting the air-fuel ratio for optimal combustion in the engine. The heater element in the sensor ensures that it reaches operating temperature quickly to provide accurate readings to the engine control module.

OBDII Code P0135 2015 Chevrolet Silverado - HO2S Heater Performance Bank 1 Sensor 1
P0135 2015 Chevrolet Silverado Code - HO2S Heater Performance Bank 1 Sensor 1

Common Causes of P0135 2015 Chevrolet Silverado

  1. Faulty oxygen sensor heater element
  2. Wiring or connector issues in the oxygen sensor circuit
  3. Blown fuse related to the oxygen sensor heater circuit
  4. Engine coolant temperature sensor malfunction
  5. Engine control module (ECM) software issue

Symptoms of P0135 2015 Chevrolet Silverado

  1. Check Engine Light illuminated on the dashboard
  2. Decreased fuel efficiency
  3. Rough idling or engine misfires
  4. Failed emissions test
  5. Poor engine performance

How to Fix P0135 2015 Chevrolet Silverado

  1. Diagnose the specific cause of the P0135 code using a scan tool to pinpoint the exact issue.
  2. Inspect the oxygen sensor wiring and connectors for any damage or corrosion, repairing or replacing as needed.
  3. Test the oxygen sensor heater element for continuity and resistance, replacing the sensor if necessary.
  4. Check and replace any blown fuses related to the oxygen sensor heater circuit.
  5. Clear the code from the ECM memory and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0135 2015 Chevrolet Silverado

The typical repair cost for addressing a P0135 code on a 2015 Chevrolet Silverado can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that the actual cost can vary based on the location of the repair shop, the make and model of the vehicle, and the hourly labor rates. It's recommended to consult with a professional mechanic to obtain an accurate estimate for the repair.

What does this mean?

Tech Notes for P0135 2015 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 P0135 2015 Chevrolet Silverado Code

1. What does the OBDII code P0135 for a 2015 Chevrolet Silverado indicate?

The code P0135 indicates a malfunction in the HO2S (Heated Oxygen Sensor) heater circuit for Bank 1 Sensor 1 in a 2015 Chevrolet Silverado.

2. What are the common symptoms of the P0135 OBDII code on a 2015 Chevrolet Silverado?

Common symptoms of the P0135 code may include poor fuel economy, rough idling, engine misfires, and the illumination of the Check Engine Light.

3. What are the possible causes of the P0135 code in a 2015 Chevrolet Silverado?

Possible causes of the P0135 code include a faulty oxygen sensor, damaged wiring or connectors in the sensor circuit, a blown fuse, or a problem with the Engine Control Module (ECM).

4. How can I diagnose the P0135 OBDII code on my 2015 Chevrolet Silverado?

Diagnosing the P0135 code involves checking the oxygen sensor's wiring and connections, testing the sensor's heater circuit, inspecting the fuse related to the sensor, and scanning the ECM for any related trouble codes.

5. How do I repair the P0135 code on a 2015 Chevrolet Silverado?

Repairing the P0135 code may involve replacing the faulty oxygen sensor, repairing damaged wiring or connectors, replacing a blown fuse, or addressing any ECM issues identified during diagnosis.

6. Can I drive my 2015 Chevrolet Silverado with the P0135 code?

It is not recommended to drive your vehicle with the P0135 code present, as it can lead to decreased fuel efficiency, engine performance issues, and potential damage to other components over time.

7. How much does it typically cost to fix the P0135 code on a 2015 Chevrolet Silverado?

The cost of fixing the P0135 code can vary depending on the underlying issue, but it may range from $100 to $300 for parts and labor if you need to replace the oxygen sensor or repair wiring.

8. What should I do if the P0135 code keeps coming back on my 2015 Chevrolet Silverado?

If the P0135 code keeps reappearing after repairs, you may need to perform a more thorough diagnostic check, ensure all repairs were done correctly, or seek professional help to identify any underlying issues.

9. How often should the oxygen sensors be replaced in a 2015 Chevrolet Silverado?

Oxygen sensors typically last around 60,000 to 90,000 miles, but it's recommended to follow the manufacturer's maintenance schedule and replace them as needed to prevent issues like the P0135 code.

10. Will resetting the Check Engine Light resolve the P0135 code on my 2015 Chevrolet Silverado?

Simply resetting the Check Engine Light may temporarily clear the code, but it won't fix the underlying issue causing the P0135 code. It's important to diagnose and address the root cause of the problem.

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