AutoCodes – Buick – C0273 Buick

C0273 Buick Code - Brake Fluid Level Switch Circuit

Quick Answer

The brake fluid level switch monitors the level of the brake fluid in the brake fluid reservoir. Common causes include Faulty Brake Fluid Level Switch, Brake Fluid Level Switch harness is open or shorted, Brake Fluid Level Switch 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
C0273 Buick indicates Brake Fluid Level Switch Circuit.
Common causes
Common causes include Faulty Brake Fluid Level Switch, Brake Fluid Level Switch harness is open or shorted, Brake Fluid Level Switch 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,002
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 05, 2023
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Code C0273 Buick Description

The brake fluid level switch monitors the level of the brake fluid in the brake fluid reservoir. When the Electronic Brake Control Module (EBCM) sees the brake fluid level switch input open, the Diagnostic Trouble Code (DTC) is set.
OBDII Code C0273 Buick - Brake Fluid Level Switch Circuit - AutoCodes.com
C0273 Buick Code - Brake Fluid Level Switch Circuit

What are the Possible Causes of the DTC C0273 Buick?

  • Faulty Brake Fluid Level Switch
  • Brake Fluid Level Switch harness is open or shorted
  • Brake Fluid Level Switch circuit poor electrical connection
  • Faulty Electronic Brake Control Module (EBCM)

How to Fix the DTC C0273 Buick?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0273 Buick 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.

Need more information about the C0273 Buick code?

Need more information on how to fix the C0273 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0273 Buick code diagnosed by a professional: Find a repair shop in your area

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 Buick Code

1. What are the common symptoms of OBDII code C0273 in a Buick related to the brake fluid level switch circuit?

The common symptoms include the illuminated brake warning light on the dashboard, inaccurate fluid level readings, and potential issues with the vehicle's brake system.

2. What are the possible causes of OBDII code C0273 in a Buick indicating a problem with the brake fluid level switch circuit?

Possible causes include a faulty brake fluid level switch, wiring issues in the circuit, low brake fluid level, or a malfunctioning brake fluid reservoir.

3. How can I diagnose the OBDII code C0273 in a Buick related to the brake fluid level switch circuit?

Diagnosis involves checking the brake fluid level, inspecting the wiring and connections of the brake fluid level switch, and using a multimeter to test for continuity and proper voltage in the circuit.

4. Can I still drive my Buick with OBDII code C0273 indicating a problem with the brake fluid level switch circuit?

It is not recommended to drive the vehicle with this code, as it can affect the accuracy of the brake fluid level readings and potentially lead to brake system malfunctions.

5. How can I repair OBDII code C0273 in a Buick caused by issues with the brake fluid level switch circuit?

Repair involves replacing the faulty brake fluid level switch, repairing any damaged wiring or connections, ensuring the brake fluid reservoir is properly sealed, and clearing the trouble code with a diagnostic tool.

6. Is it safe to ignore OBDII code C0273 in a Buick related to the brake fluid level switch circuit?

Ignoring this code can lead to inaccurate brake fluid level readings and potential brake system problems, so it is recommended to address the issue promptly.

7. Can a DIY enthusiast fix OBDII code C0273 in a Buick indicating a problem with the brake fluid level switch circuit?

Depending on your skill level and access to tools, you may be able to diagnose and repair this issue yourself by following the manufacturer's repair procedures and safety precautions.

8. How much does it typically cost to repair OBDII code C0273 in a Buick associated with the brake fluid level switch circuit?

The cost of repair can vary depending on the specific cause of the issue, but it may involve expenses for parts, such as a new brake fluid level switch, and labor if professional help is needed.

9. Are there any preventive measures to avoid OBDII code C0273 in a Buick related to the brake fluid level switch circuit?

Regularly checking the brake fluid level, ensuring the brake fluid reservoir is properly sealed, and addressing any brake system issues promptly can help prevent this code from appearing.

10. How long does it take to repair OBDII code C0273 in a Buick caused by a malfunction in the brake fluid level switch circuit?

The repair time can vary depending on the complexity of the issue and the availability of parts, but it may take a few hours to a day for a professional mechanic to diagnose and fix the problem.

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