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Engine-Codes – GMC – C0273 2015 GMC Sierra

C0273 2015 GMC Sierra Code - Brake Fluid Level Switch Circuit

Quick Answer

The C0273 diagnostic trouble code (DTC) specifically pertains to the brake fluid level switch circuit in a 2015 GMC Sierra. Common causes include Faulty brake fluid level switch, Corrosion or damage to the wiring/connectors in the brake fluid level switch circuit, Low brake fluid levels due to leaks or evaporation. 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
C0273 2015 GMC Sierra indicates Brake Fluid Level Switch Circuit.
Common causes
Common causes include Faulty brake fluid level switch, Corrosion or damage to the wiring/connectors in the brake fluid level switch circuit, Low brake fluid levels due to leaks or evaporation.
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 07, 2024
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Code C0273 2015 GMC Sierra Description

The C0273 diagnostic trouble code (DTC) specifically pertains to the brake fluid level switch circuit in a 2015 GMC Sierra. This code indicates that there is a malfunction or fault in the circuit responsible for monitoring the brake fluid level in the vehicle's braking system. The brake fluid level switch is a crucial component that helps to ensure the proper functioning of the vehicle's brake system. When the brake fluid level drops below a certain point, it can indicate a leak or other issue that needs to be addressed promptly.

OBDII Code C0273 2015 GMC Sierra - Brake Fluid Level Switch Circuit
C0273 2015 GMC Sierra Code - Brake Fluid Level Switch Circuit

Common Causes of C0273 2015 GMC Sierra

  1. Faulty brake fluid level switch
  2. Corrosion or damage to the wiring/connectors in the brake fluid level switch circuit
  3. Low brake fluid levels due to leaks or evaporation
  4. ECM software issues
  5. Electrical system malfunctions

Symptoms of C0273 2015 GMC Sierra

  1. Illumination of the brake warning light on the dashboard
  2. Loss of brake fluid without visible leaks
  3. Spongy brake pedal feel
  4. Increased stopping distances
  5. ABS system malfunctions

How to Fix C0273 2015 GMC Sierra

  1. Begin by checking the brake fluid level in the reservoir and topping it up if necessary.
  2. Inspect the wiring and connectors in the brake fluid level switch circuit for any signs of damage or corrosion.
  3. Test the brake fluid level switch using a multimeter to determine if it is functioning correctly.
  4. Replace the brake fluid level switch if it is found to be faulty.
  5. Clear the DTC and perform a test drive to ensure the issue has been resolved.

Cost to Fix C0273 2015 GMC Sierra

The cost of repairing the brake fluid level switch circuit can vary depending on the extent of the issue and whether any parts need to be replaced. On average, the repair costs for this issue can range from $100 to $300, including parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to obtain quotes from multiple sources to get a more accurate estimate.

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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 C0273 2015 GMC Sierra Code

1. What are common symptoms of OBDII code C0273 in a 2015 GMC Sierra related to the Brake Fluid Level Switch Circuit?

The common symptoms include illuminated warning lights on the dashboard, such as the ABS or brake warning light, indicating a potential issue with the brake fluid level.

2. What are the possible causes of OBDII code C0273 in a 2015 GMC Sierra?

The code C0273 typically indicates a malfunction in the brake fluid level switch circuit, which can be triggered by issues such as a faulty brake fluid level sensor, wiring problems, or a low brake fluid level.

3. How can I diagnose the cause of OBDII code C0273 in my 2015 GMC Sierra?

Diagnosing the code involves inspecting the brake fluid level sensor, checking the wiring for any damage or loose connections, and verifying the brake fluid level in the reservoir. Using a multimeter to test the sensor's resistance can also help identify the issue.

4. Can I continue driving my 2015 GMC Sierra with OBDII code C0273 active?

It is not recommended to drive the vehicle with an active C0273 code, as it indicates a potential problem with the brake fluid level monitoring system, which is crucial for safe braking operation. It is advisable to address the issue promptly.

5. How can I repair OBDII code C0273 in my 2015 GMC Sierra related to the Brake Fluid Level Switch Circuit?

Repairing the code C0273 may involve replacing the brake fluid level sensor if it is faulty, repairing any damaged wiring, or topping up the brake fluid to the appropriate level. Clearing the code with a diagnostic tool after the repairs is essential.

6. Are there any safety implications associated with OBDII code C0273 in a 2015 GMC Sierra?

Yes, OBDII code C0273 related to the brake fluid level switch circuit can impact the vehicle's braking system, potentially leading to unsafe driving conditions. It is crucial to address this issue promptly to ensure proper brake operation.

7. Can a DIY enthusiast fix OBDII code C0273 in a 2015 GMC Sierra at home?

Depending on the individual's mechanical skills and access to tools, some DIY enthusiasts may be able to diagnose and repair OBDII code C0273 at home. However, if unsure, it is advisable to seek professional help to avoid further complications.

8. How much can I expect to pay for repairing OBDII code C0273 in a 2015 GMC Sierra at a professional auto repair shop?

The cost of repairing OBDII code C0273 can vary depending on the specific cause of the issue, the labor rates of the repair shop, and the cost of any replacement parts needed. It is recommended to obtain quotes from multiple shops for comparison.

9. Will resetting the OBDII code C0273 in my 2015 GMC Sierra make the problem go away?

Resetting the code without addressing the underlying issue will not fix the problem causing OBDII code C0273. It is essential to diagnose the root cause of the code and perform the necessary repairs to resolve the brake fluid level switch circuit issue.

10. Is OBDII code C0273 in a 2015 GMC Sierra a common problem among vehicle owners?

While the prevalence of OBDII code C0273 may vary, issues related to the brake fluid level switch circuit can occur in vehicles, including the 2015 GMC Sierra. Regular maintenance and prompt attention to warning lights can help prevent such problems.

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