C0273 GMC 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 GMC 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.
Code C0273 GMC Description
What are the Possible Causes of the DTC C0273 GMC?
- 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 GMC?
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 GMC 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.
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Information for Specific GMC Models
- C0273 2014 GMC Sierra — Brake Fluid Level Switch Circuit
- C0273 2015 GMC Sierra — Brake Fluid Level Switch Circuit
- C0273 2016 GMC Sierra — Brake Fluid Level Switch Circuit
- C0273 2017 GMC Sierra — Brake Fluid Level Switch Circuit
- C0273 2018 GMC Sierra — Brake Fluid Level Switch Circuit
Frequently Asked Questions about C0273 GMC Code
1. What does the OBDII code C0273 GMC indicate?
The code C0273 GMC indicates a problem with the Brake Fluid Level Switch Circuit, suggesting that the brake fluid level sensor is not operating correctly.
2. What are common symptoms of code C0273 GMC?
Symptoms may include the brake warning light illuminating on the dashboard, possible changes in braking performance, and in some cases, an audible alert if the vehicle is equipped with this feature.
3. What causes the OBDII code C0273 GMC to be triggered?
Common causes include low brake fluid level, a faulty brake fluid level sensor, issues with the sensor circuit such as damaged wires or poor connections, and problems in the electrical connections or related control modules.
4. How do I check the brake fluid level in relation to code C0273 GMC?
To check the brake fluid level, locate the brake fluid reservoir in the engine compartment, usually near the firewall on the driver's side. Ensure the fluid level is between the "MIN" and "MAX" marks on the reservoir. If below "MIN," add the appropriate type of brake fluid for your vehicle.
5. Can driving with the code C0273 GMC activated pose a safety risk?
Yes, driving with an active C0273 code can be risky if it involves a critical issue like low brake fluid, which can compromise braking efficiency and increase stopping distances.
6. What steps should be taken to troubleshoot and fix code C0273 GMC?
Start by checking the brake fluid level and topping it up if necessary. Inspect the brake fluid level sensor and its connections for any signs of damage or corrosion. If the sensor or wiring is faulty, replacing them might be necessary.
7. How can I reset the OBDII code C0273 GMC after repairs?
After addressing the issue, the code can be cleared using an OBDII scan tool. Alternatively, in some vehicles, the code may clear itself after several driving cycles if the issue is no longer detected.
8. What should I do if the code C0273 GMC reappears after clearing it?
If the code returns, it indicates that the initial repair did not fully resolve the problem. Further diagnostics would be required, potentially involving more detailed inspection of the brake system, sensor circuit, and related electronic control units.
9. Is it necessary to use a professional mechanic to resolve code C0273 GMC?
While some checks and minor fixes can be done at home if you have the necessary skills and tools, complex issues related to the brake system and electrical diagnostics are best handled by a professional mechanic for safety reasons.
10. Could code C0273 GMC be triggered by other issues within the brake system?
Yes, while the primary concern is with the brake fluid level and sensor, broader issues in the brake system such as leaks or degraded brake components could indirectly lead to problems that trigger this code. Regular maintenance and inspection of the brake system are advised to prevent such issues.
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