AutoCodesGMC – C0273 2016 GMC Sierra

C0273 2016 GMC Sierra 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 2016 GMC Sierra 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.
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Code Popularity 277
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 2016 GMC Sierra 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 2016 GMC Sierra - Brake Fluid Level Switch Circuit - AutoCodes.com
C0273 2016 GMC Sierra Code - Brake Fluid Level Switch Circuit

What are the Possible Causes of the DTC C0273 2016 GMC Sierra?

  • 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 2016 GMC Sierra?

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 2016 GMC Sierra 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 2016 GMC Sierra code?

Need more information on how to fix the C0273 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0273 2016 GMC Sierra 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 2016 GMC Sierra Code

1. What does the OBDII code C0273 mean on a 2016 GMC Sierra?

C0273 indicates an issue with the Brake Fluid Level Switch Circuit, which monitors the brake fluid level and ensures proper braking system performance.

2. What are the common symptoms of the C0273 code on a 2016 GMC Sierra?

Symptoms may include the brake warning light illuminating on the dash, reduced braking performance, or erratic behavior of the brake system warning indicators.

3. What causes the C0273 code to appear on a 2016 GMC Sierra?

Common causes include a faulty brake fluid level sensor, low brake fluid levels, damaged wiring or connectors in the brake fluid level circuit, or issues with the Electronic Brake Control Module (EBCM).

4. Can low brake fluid trigger the C0273 code on a 2016 GMC Sierra?

Yes, low brake fluid can cause the brake fluid level sensor to detect an issue, which may trigger the C0273 code.

5. How can I fix the C0273 code on my 2016 GMC Sierra?

Inspect the brake fluid level and refill if necessary, check the brake fluid level sensor and its wiring for damage, and replace the sensor if it’s faulty. If the issue persists, consult a professional technician.

6. Is it safe to drive with the C0273 code on a 2016 GMC Sierra?

Driving with this code may not be safe, as it could indicate low brake fluid or a malfunction in the brake system that could impact braking performance.

7. How do I test the brake fluid level sensor on a 2016 GMC Sierra?

You can test the brake fluid level sensor using a multimeter to check for continuity or resistance, but consult the vehicle’s service manual for specific testing procedures.

8. Can a faulty EBCM cause the C0273 code on a 2016 GMC Sierra?

Yes, a malfunctioning Electronic Brake Control Module (EBCM) can potentially cause communication issues with the brake fluid level sensor, resulting in the C0273 code.

9. What tools are needed to diagnose the C0273 code on a 2016 GMC Sierra?

You’ll need an OBDII scanner, a multimeter, and possibly a service manual to diagnose wiring or sensor issues accurately.

10. How much does it cost to repair the C0273 code on a 2016 GMC Sierra?

The cost depends on the root cause. Replacing a brake fluid level sensor might cost $50–$150 for parts, while professional diagnostics and repairs could add labor costs.

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