AutoCodes – Generic – C0049

C0049 Code - Brake Fluid Level Too Low

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Brake Fluid Level Sensor. Common causes include Low Brake Fluid Level, Faulty Brake Fluid Level Sensor, Brake Fluid Level Sensor harness is open or shorted. 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: C0049 indicates Brake Fluid Level Too Low.
Common causes: Common causes include Low Brake Fluid Level, Faulty Brake Fluid Level Sensor, Brake Fluid Level Sensor harness is open or shorted.
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 24,627

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0049 Description

The Anti-Lock Brake System (ABS) Module monitors the Brake Fluid Level Sensor. The ABS Module sets the OBDII code when the Brake Fluid Level Sensor is not to factory specifications.

OBDII Code C0049 - Brake Fluid Level Too Low - AutoCodes.com — C0049 Code - Brake Fluid Level Too Low

What does this mean?

What are the Possible Causes of the DTC C0049?

Low Brake Fluid Level
Faulty Brake Fluid Level Sensor
Brake Fluid Level Sensor harness is open or shorted
Brake Fluid Level Sensor circuit poor electrical connection

How to Fix the DTC C0049?

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 C0049 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 C0049 code?

Need more information on how to fix the C0049 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0049 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C0049 Acura — Brake Fluid Level Too Low
C0049 Honda — Brake Fluid Level Too Low

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 C0049 Code

1. What are the common symptoms of OBDII code C0049 - Brake Fluid Level Too Low?

- The common symptoms include the illumination of the brake warning light on the dashboard, potential loss of brake fluid, and decreased braking performance.

2. What causes OBDII code C0049 to trigger?

- This code is typically triggered when the brake fluid level in the reservoir falls below the minimum required level, indicating a potential leak or excessive brake pad wear.

3. How serious is OBDII code C0049 - Brake Fluid Level Too Low?

- This code should be taken seriously as it indicates a potential safety hazard due to insufficient brake fluid, which can lead to brake system failure and compromised braking performance.

4. Can I continue driving with OBDII code C0049 present?

- It is not recommended to drive with this code active, as low brake fluid levels can compromise the effectiveness of your vehicle's braking system, posing a safety risk.

5. How can I diagnose the issue related to OBDII code C0049?

- You can start by visually inspecting the brake fluid reservoir for low fluid levels and signs of leaks. It is also advisable to check the brake pads and brake lines for any wear or damage.

6. What are some repair tips for resolving OBDII code C0049?

- Begin by topping up the brake fluid to the specified level and inspecting the entire brake system for leaks. Address any leaks and replace worn brake pads if necessary to rectify the issue.

7. Can a DIY enthusiast fix OBDII code C0049 at home?

- If you are comfortable working on your vehicle's brake system, you may be able to address this issue at home by topping up the brake fluid and investigating for leaks. However, professional help is recommended for complex repairs.

8. Will resetting the OBDII code C0049 resolve the underlying issue?

- Simply resetting the code without addressing the root cause, such as low brake fluid levels or leaks, will not fix the problem. It is essential to identify and rectify the underlying issue to ensure safe driving.

9. How often should I check my vehicle's brake fluid level to prevent OBDII code C0049?

- It is recommended to check your vehicle's brake fluid level regularly, ideally during routine maintenance intervals or whenever you notice any symptoms of brake fluid loss or brake system issues.

10. Is it safe to drive to a repair shop with OBDII code C0049 triggered?

- If you suspect low brake fluid levels or brake system issues, it is safer to have your vehicle towed to a repair shop to prevent any potential brake failures while driving.