Land Rover Discovery L550 Brake Pump ABS Pump Control Unit Module HJ32-2C405-AD

The Land Rover Discovery L550 Brake Pump Control Module is a specialized component from the ABS and ESP System group, designed for precise control of brake circuit pressure and the operation of stability control systems. A correctly selected control module ensures predictable brake system response, improves vehicle control, and supports advanced safety systems.

Specifications and technical data

• SKU: HJ32-2C405-AD
• Mark: Land Rover
• Condition: Used
• OEM Part Number: HJ32-2C405-AD
• Substitutable numbers: HJ32-2C405-AD, HJ322C405AD, LR083665, HJ322C353AG, HJ32-2C353-AG, LR117895, JJ322C353AE, JJ32-2C353-AE
• Part type: ABS Hydraulic Unit
• Category: ABS & Stability Hydraulic Units

Vehicle Application and Function

The presented brake pump control module works with the hydraulic part of the system, monitoring pressure generation and modulation in the brake circuits. It is integrated with the electronics responsible for the anti-lock braking and stability control systems, leading to more effective braking in emergency situations and better traction control on various surfaces.

Thanks to its factory-designed fit for the Discovery L550 platform, the control module communicates with other vehicle modules via the data bus, enabling seamless integration with driver assistance systems. This solution reduces the risk of communication errors and simplifies computer diagnostics.

Benefits of Using an Original Module

Using an original brake pump control module in a Land Rover ensures that the brake system's operating parameters remain consistent with the manufacturer's specifications. This means:

• stable operation of ABS and ESP systems across the full speed range,
• correct interaction with wheel speed sensors and acceleration sensors,
• compatibility with the vehicle's control software without the need for installation modifications.

For the user, this translates to predictable vehicle behavior during emergency braking, on slippery surfaces, or during evasive maneuvers. The original design minimizes the risk of incompatibility that can occur with aftermarket replacements.

Integration with ABS and ESP System

The brake pump control module is a key component that works with other parts within the ABS and ESP System. It is responsible for:

• controlling hydraulic valves in the pump block,
• implementing wheel lock prevention algorithms,
• interacting with the stability control system upon detecting a skid,
• coordinating operation with the engine control unit and other body modules.

A correctly functioning control module allows for the full utilization of Land Rover's factory safety systems, which is important for both everyday driving and demanding off-road conditions.

Product Characteristics and Condition

The offered component comes from the vehicle manufacturer's line, ensuring structural compatibility with the factory equipment of the Discovery L550. This is a used part, allowing for economical brake system repair while maintaining the proper standard of execution. This type of component is particularly recommended for replacing a damaged control module when preserving the vehicle's original electrical and hydraulic architecture is desired.

An additional benefit is the ability to match the module based on the OEM part number and available interchangeable numbers, which simplifies selecting the correct variant for a specific car configuration. This can reduce vehicle downtime and speed up the service process.

Technical Support and Parts Selection

When selecting a brake pump control module, it is important to consider compatibility with the vehicle's software and equipment configuration. If you have any doubts, specialized guides on selecting used OEM parts and their proper operation can be helpful. Practical tips in this regard can be found in the article 5 Reasons Why a Used OEM Part is a Better Choice Than an Aftermarket Replacement, which discusses selection criteria and application examples in popular models.

If you are interested in a broader context of vehicle servicing, including component selection for other systems, you will also find useful information in the guide on thermal comfort in cars: Air Conditioning and Heating – Part Selection and Maintenance for Year-Round Comfort. This will help you better plan comprehensive service work on your car.

If you are planning a comprehensive repair or upgrade of the braking area in your Land Rover and need other parts from the same group, such as pumps, control modules, or wheel speed sensors, check the available parts in the Land Rover ABS and ESP System category.