2021-2025 Ford Bronco Sport ABS Module: Warning Lights, Recalls, and Programming Explained
This guide covers the common failures, recall information, and critical programming requirements for the 2021-2025 Ford Bronco Sport ABS control module.
- A replacement ABS module (new or used) MUST be programmed to your Bronco Sport's VIN to function.
- A 2023 model year recall (23V-021) was issued for an internal leak that causes a spongy brake pedal; check if your vehicle is affected.
- A cluster of warning lights (ABS, AdvanceTrac, etc.) is the most common symptom, but can also be caused by a bad wheel speed sensor or low battery voltage.
- Buying a used OEM module can save over $500 on the part, but you must factor in the cost of professional programming.
Symptoms of a Failing ABS Module
A problem with the ABS module in a 2021-2025 Ford Bronco Sport rarely goes unnoticed. The most common sign is a sudden cascade of warning lights on your instrument cluster. Because the ABS module is so central to other vehicle systems, its failure triggers a domino effect.
- Multiple Dashboard Warning Lights: The most frequent symptom is the simultaneous illumination of the ABS, Service AdvanceTrac, Pre-Collision Assist Not Available, Hill Start Assist Not Available, and sometimes 4WD warning lights.
- Spongy or Long Brake Pedal Travel: You may notice the brake pedal feels soft, inconsistent, or travels further to the floor than usual before the brakes engage. This was a key symptom in a 2023 model year recall.
- Auto Hold Feature Malfunctions: The vehicle may creep forward unexpectedly after the Auto Hold feature has been engaged.
- ABS Pump Running Constantly: In some cases, you might hear the ABS pump motor running continuously, even when the vehicle is off.
Pro Tip: Before condemning the ABS module, check for simpler causes. The exact same cluster of warning lights can be triggered by a single faulty wheel speed sensor, a dying battery, or even a loose electrical connection. A diagnostic scan to read the specific trouble codes is the first step to identifying the true source of the problem.
Known Issues, Recalls, and Technical Service Bulletins (TSBs)
Recall 23V-021 (Ford ID: 23S01): Internal ABS Module Leak
Ford issued a safety recall for 801 units of the 2023 model year Bronco Sport built between December 8, 2022, and December 16, 2022.
The problem was caused by a manufacturing defect at the supplier, Continental. A foreign object in the assembly tool damaged a small sealing ball inside the module's internal valves. This damage can cause an internal brake fluid leak, leading to the symptoms of increased brake pedal travel or the failure of the Auto Hold feature, which increases the risk of a crash.
- Vehicles Affected: 801 units of the 2023 Ford Bronco Sport.
- The Fix: Dealers will replace the entire ABS module free of charge.
- Owner Notification: Ford began notifying owners in February 2023.
No other major recalls or TSBs directly related to ABS module failure for this generation have been issued at this time.
Buying a Used ABS Control Module
Given the high cost of a new OEM module, a used unit from a reputable recycler is an excellent value. However, there are critical factors to consider to ensure a successful repair.
1. Part Number Matching is Essential
You must match the engineering or service part number from your original module. While they may look identical, modules can have different internal software based on the vehicle's specific features (like standard vs. advanced driver-assistance systems). Using the wrong module can lead to programming failures or system malfunctions.
- Look for the number printed on a sticker on your original module. Common numbers include KTLX6C2D134LA, LX6C2C219KE, and LX6C2B373KG.
2. Programming is NOT Optional
Warning: A replacement ABS module—whether new or used—will not work until it is programmed to your vehicle's Vehicle Identification Number (VIN). This is not a plug-and-play part.
The programming process, often called Programmable Module Installation (PMI), copies your vehicle's specific configuration data (known as "As-Built" data) into the replacement module. This ensures it can communicate correctly with the engine computer, instrument cluster, and other systems. Failure to program the module will result in a non-functional ABS system and persistent warning lights. In some cases, it can even prevent the vehicle from starting due to a conflict with the anti-theft system.
3. Who Can Program the Module?
- Ford Dealer: A dealership can always perform the programming, but may be hesitant to work with a customer-supplied used part.
- Independent Shops: Many independent repair shops that specialize in Ford vehicles have the necessary tools, like the Ford IDS/FDRS software, to program modules. This is often the most cost-effective option.
- DIY with FORScan: Advanced DIY mechanics with a Windows laptop, a compatible OBD-II adapter, and the FORScan software may be able to perform the PMI procedure themselves. This is a complex process and not recommended for beginners.
4. Physical Inspection
When you receive your used module, inspect it carefully. Look for any signs of physical damage to the housing or, more importantly, corrosion or bent pins on the electrical connector. Ensure the unit is clean and free from any signs of brake fluid leaks.
Cost to Replace the ABS Control Module
The cost can vary significantly depending on whether you choose a new or used part and who performs the labor.
| Part / Service | Estimated Cost |
|---|---|
| New OEM Module (Part Only) | $630 - $750 |
| New Aftermarket Module | Not generally available as of early 2026. |
| Used OEM Module (Part Only) | $75 - $220 |
| Shop Labor (Replacement & Bleeding) | $305 - $450 |
| Shop Labor (Programming) | $125 - $250 (often 1-2 hours of labor) |
| Total Cost (Installed Used OEM) | $505 - $920 |
| Total Cost (Installed New OEM) | $1,060 - $1,450 |
Frequently Asked Questions (FAQ)
Does a used ABS module for a Bronco Sport need to be programmed?
Yes, absolutely. Any replacement ABS module, new or used, must be electronically programmed to your vehicle's VIN and specific configuration. Without this step, the part will not function, and your ABS and stability control systems will remain disabled.
Can I drive my Bronco Sport with a bad ABS module?
Yes, but with significant risks. Your standard hydraulic brakes will still work, but you will not have anti-lock brakes, traction control, or stability control. This means your wheels can lock up during hard braking, especially on wet or icy roads, increasing the risk of skidding and losing control. Features like Pre-Collision Assist will also be disabled.
What are the most common OBD-II codes for an ABS problem?
While a generic scanner might not pull them, a more advanced tool can read specific codes from the ABS module. A code like B2477 indicates a 'Module Configuration Failure,' which is common after installing an unprogrammed module. Codes starting with 'U' (e.g., U0415 - Invalid Data Received from ABS Module) indicate communication problems. Codes related to specific wheel speed sensors (e.g., C0031 for the left front) are also common and should be investigated first.
Is the ABS module the same as the ABS pump?
They are two separate components that are bolted together into a single assembly. The pump is the hydraulic unit with the brake line connections and valves, while the module is the electronic computer that controls it. For the Bronco Sport, they are almost always replaced as a complete assembly, especially when buying used.
Technical Specifications
OEM Part Numbers: KTLX6C2D134LA KTLX6C2D134LB KTLX6C2D134LD KTLX6C2D134LE LX615E2116KE LX6C2B373KE LX6C2B373KF LX6C2B373KG LX6C2C219 LX6C2C219KE LX6C2C219KF LX6Z2B373M LX6Z2C219S LX6C-2B373-LG
The module is an integrated electronic control unit typically attached to the ABS hydraulic pump assembly. It communicates over the vehicle's CAN bus network and requires VIN-specific programming.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Ford Bronco Sport:
- 🛍️ Shop This Part
- Symptoms of a Failing ABS Module
- Known Issues, Recalls, and Technical Service Bulletins (TSBs)
- Recall 23V-021 (Ford ID: 23S01): Internal ABS Module Leak
- Buying a Used ABS Control Module
- 1. Part Number Matching is Essential
- 2. Programming is NOT Optional
- 3. Who Can Program the Module?
- 4. Physical Inspection
- Cost to Replace the ABS Control Module
- Frequently Asked Questions (FAQ)
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