Description
Control Module, ABS/ESP Unit Including A Section Of Wiring. Hydraulic Brake Control Block. It Is From A 2008 Peugeot 407 1.6 HDi 9HZ.
This ABS/ESP control module with integrated hydraulic block and attached wiring is a direct-fit unit sourced from a Peugeot 407 (2008) 1.6 HDi. Designed to manage anti-lock braking and electronic stability functions, the module modulates brake pressure, controls the hydraulic pump and valves, and communicates with wheel speed sensors and other vehicle systems to maintain vehicle stability and shorten stopping distances in emergency conditions. Replacement of a faulty unit restores full ABS and ESP functionality, eliminates warning lights on the dash and resolves faults related to pump activation or pressure control.
Key Features And Benefits
- Complete Module Assembly: Hydraulic control block plus electronic control unit and a piece of original wiring harness for easier installation.
- OE Part Numbers Included: Facilitates fast lookup by product code — often searched by technicians and DIYers.
- Restores Safety Systems: Returns proper ABS and ESP operation, improving braking performance and vehicle stability in critical situations.
- Suitable For Workshop And Home Mechanics: Clear mechanical replacement steps and installation recommendations included.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Peugeot 407 1.6 HDi (2008) Engine Code 9HZ; Commonly Applied To Other Stellantis Models Where The Same Part Numbers Are Used
- Product Codes: 9665736080, 0265950659
- Other Numbers: 41682607380, 4541HE, 4541HF, 541HE
Installation Recommendations
Installation should be performed by a qualified mechanic or an experienced DIYer with the correct tools. Key steps include:
- Disconnect The Battery Before Starting To Prevent Electrical Damage.
- Read And Record Fault Codes With A Diagnostic Tool Before Removal.
- Remove Underbody Covers Or Trim To Access The Unit If Required.
- Carefully Disconnect Electrical Connectors And Brake Lines; Cap Brake Lines To Minimize Fluid Loss.
- Unbolt The Module And Transfer Any Mounting Brackets Or Sensors If Needed.
- Fit The Replacement Unit, Reconnect Brake Lines And Electrical Plugs, And Torque Fasteners To Manufacturer Specifications.
- Bleed The Brake System Thoroughly After Installation. Perform ABS Pump Activation And A Full System Scan With A Diagnostic Tool To Clear Faults And Complete Initialization.
Why This Part Fails Most Often
ABS/ESP modules commonly fail due to a combination of factors:
- Moisture Ingress And Corrosion Of Electrical Contacts, Especially In Older Vehicles Or Those Exposed To Road Salt.
- Electrical Faults From Short Circuits, Wiring Damage Or Connector Corrosion.
- Hydraulic Wear: Internal Valve Or Pump Wear Can Lead To Pressure Control Loss.
- Repeated Overheating Or Contamination Of Brake Fluid, Accelerating Component Degradation.
- Symptoms Include ABS/ESP Warning Lights, Irregular Brake Feel, Unresponsive Pump Activation, Or Stored Fault Codes Related To Pressure Sensors Or Valve Blocks.
Why Buy This Module
If Your Vehicle Shows ABS Or ESP Faults, Replacing The Complete Module And Hydraulic Block Offers A Reliable Way To Restore Safety Systems. Technicians And DIY Enthusiasts Often Search By The Part Numbers Shown Above — Listing These Codes Helps You Find The Correct Unit Quickly. The Supplied Wiring Section Speeds Installation And Reduces The Need For Extensive Splicing.
Additional Notes
Always Use Fresh, Specification-Compliant Brake Fluid And Follow Bleeding Procedures After Replacement. After Installation, Run A Full Diagnostic Cycle To Ensure The ABS/ESP System Initializes Correctly And No Related Faults Remain.
