Toyota Aygo B1 Mk1 ABS Brake Pump Modulator Hydraulic Control Unit 44510-0H020

Toyota Aygo B1 Mk1 ABS Brake Pump Modulator Hydraulic Control Unit is a component from the ABS and ESP system group, designed to work with the factory braking system in the first-generation Toyota Aygo model. The pump and control unit assembly is responsible for precise pressure regulation in the brake circuits and stable operation of the anti-lock braking system, which translates into safe and predictable vehicle behavior on the road.

Specifications and technical data

• SKU: 2265106496
• Mark: Toyota
• Condition: Used
• OEM Part Number: 2265106496
• Substitutable numbers: 2265106496, 22651-06496, 445100H020, 44510-0H020
• Part type: ABS/Stability Control Hydraulic Unit
• Category: ABS & Stability Hydraulic Units

Purpose and function in the vehicle

The presented brake pump assembly with an ABS module is designed to work with the hydraulic and electronic system of the Toyota Aygo B1 Mk1. It is responsible for:

• generating and maintaining appropriate pressure in the brake circuits,
• controlling the operation of valves in the ABS system during emergency braking,
• cooperating with wheel speed sensors and the body control module to stabilize the vehicle's path. By integrating the hydraulic part with the electronic brake control unit, a compact design is achieved, which facilitates installation and maintenance while reducing the number of potential leak points.

Construction of the pump and control unit assembly

The element combines a hydraulic block with channels and valves and an electronic control module in one housing. This configuration allows for fast processing of sensor signals and immediate reaction to changes in wheel grip. The ABS and ESP system in this solution can precisely modulate pressure in each of the circuits, limiting slippage and improving vehicle control. In practice, this means that during sudden braking or on slippery surfaces, the brake control unit dynamically operates the valves in the pump to maintain the highest possible braking force while maintaining vehicle steerability.

Benefits of using the original assembly

Using a complete brake pump with an ABS module dedicated to the Toyota Aygo B1 Mk1 ensures:

• proper cooperation with the factory electrical installation and vehicle software,
• appropriate operating characteristics of the braking system in accordance with the manufacturer's specifications,
• stable operation of the ABS system in typical and emergency road conditions. This solution allows for maintaining consistent braking parameters, which is particularly important after brake system repairs or after replacing hydraulic components.

Part selection by numbers and vehicle integration

The element has an assigned OEM part number and interchangeable numbers, which facilitates clear identification and selection of the correct variant for a specific Toyota Aygo configuration. In practice, selection by part number or reference numbers minimizes the risk of incompatibility with the electrical harness, controller software, and mounting geometry in the body. Thanks to this, the installation can proceed in an orderly manner, maintaining factory mounting points and proper routing of brake lines, without the need for structural modifications.

Condition and service application

The offered assembly comes from the category of used components, which makes it an attractive solution for economic repairs when the priority is to maintain proper system functionality at reasonable service costs. It can be used both as a replacement for a damaged pump with an ABS module and as an element used for comparative diagnostics of the braking system. If you are planning a comprehensive repair or upgrade of the braking zone in your Toyota and need other elements from the same group, such as ABS pumps, control modules, or hydraulic blocks, check the available parts in the Toyota ABS and ESP system category. For a better understanding of the principles of selecting components by OEM numbers and the method of their diagnostics and operation, it is worth reading the guide on our blog: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, where practical procedures are discussed that can be analogously used when working with other vehicle systems.