Vehicle Specification & Fitment
| OEM Part Number | BFB4-437AZ-C |
|---|---|
| Manufacturer Reference | 06.2102-2003.4 |
| ABS ECU Controller P/N | 06.2109-6109.3 |
| Manufacturer Reference | 06.2613-3734.1 |
| Manufacturer Reference | 41162300453 |
| Software Version (SW) | 00.0404-961E.2 |
| Manufacturer Reference | 11W254 |
| System Designation | K1900 |
| System Designation | A426G |
| System Designation | E |
| Make | Mazda |
| Model | 3 |
| Series | Bl |
| Year Range | 2009 - 2011 |
| Compatible Years | 2009, 2010, 2011 |
| Weight | 3 Kgs |
| Condition | Used (Tested & Verified) |
Genuine Mazda 3 BL(Series 1) ABS Pump Module — Part No. BFB4-437AZ-C (2009–2011)
Donor VIN: JMOBL10F100118357100% Fitment Guarantee for Mazda 3
Unsure if this fits your vehicle? Our experts will manually verify the compatibility of SKU: NO9FRO for your specific Mazda model before dispatch.
Free Express Shipping & Free In-Store Pickup
Free Express Shipping Australia-Wide (1-2 business days) or free in-store pickup from our Yennora, NSW warehouse.
View Warehouse LocationTested & Verified Braking Modulator | SKU: NO9FRO | 12-Month Replacement Warranty
Restore absolute braking control and clear critical system faults with this Genuine Mazda 3 BL ABS Pump Modulator (Part No: BFB4-437AZ-C). Sourced from low-mileage donor vehicles and meticulously bench-tested at our Yennora, NSW warehouse, this unit is the definitive replacement for failing 2009–2011 BL series braking systems. This module serves as your primary Electronic Brake Control assembly, essential for anti-lock performance on Australian roads.
Fault Symptoms (Is Your Mazda 3 BL ABS Module Failing?)
The Mazda 3 BL platform frequently exhibits these exact diagnostic symptoms when the BFB4-437AZ-C internal modules encounter circuitry or hydraulic breakdown:
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DSC & ABS Light Illumination Persistent dashboard warnings indicating a failure in the dynamic stability control processor, rendering standard anti-lock braking inoperative.
-
U0121 Communication Failure A complete electronic "drop" where the main ECU can no longer communicate with the ABS modulator, disabling safety network integration.
-
Internal Pressure Sensor Fault Hardware degradation within the module's pressure transducer, causing the brake pedal to feel inconsistent or unresponsive under heavy load.
Fitment & Technical FAQ for Mazda 3 (2009 - 2011) Braking System Part #BFB4-437AZ-C
These warnings generally point to an internal failure of the BFB4-437AZ-C module's electronic control circuitry. Because the ABS module is the brain of the vehicle's stability control (DSC) network, any electrical fault within the modulator forces the computer to shut down safety systems to prevent incorrect intervention, locking the warning lights on your dash.
Yes. While the BFB4-437AZ-C unit is a direct mechanical fit, the electronic module contains coding specific to your vehicle's safety parameters. After physical installation, a diagnostic scanner must be used to perform a VIN-match and steering angle sensor calibration to ensure the module communicates properly with your car's central computer.
We subject all unbolted ABS units to a two-stage testing process at our Yennora facility. First, we test the module for communication continuity to ensure the internal logic board is alive. Second, we verify the hydraulic solenoid valves for mechanical responsiveness, guaranteeing that you are purchasing a unit that can effectively modulate brake pressure when needed.
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