Description
Overview
This ABS/ESP control unit and pump assembly is specified for the Peugeot 206 and carries common PSA/ATE part references. The component combines the hydraulic ABS pump, electronic control unit (ECU) and associated wiring harness to manage anti-lock braking and electronic stability control functions. Ideal for professional workshops and experienced DIY mechanics searching by product number for a precise replacement.
Key Features
- Complete ABS & ESP module including pump motor, hydraulic block and ECU electronics.
- Includes wiring harness for direct connection to the vehicle loom.
- Commonly referenced by multiple PSA and ATE part numbers for accurate fitment lookup.
- Designed to control wheel anti-lock operation and support stability/brake interventions under dynamic conditions.
Function And Symptoms
The unit regulates brake pressure modulation during ABS events and interfaces with the ESP system to apply selective braking for vehicle stability. Typical fault indicators include illuminated ABS and/or ESP warning lights, loss of ABS function under braking, unusual brake pedal feel (pulsation or sponginess), or stored fault codes visible with a diagnostic tool.
Common Fault Causes
- Electrical issues such as connector corrosion, broken wiring or internal ECU component failure.
- Hydraulic problems including pump motor failure, valve sticking or contamination from degraded brake fluid.
- Ingress of moisture or corrosion on the hydraulic block or electronic module.
- Thermal stress and age-related wear on internal components.
Replacement And Installation Notes
Replacing the ABS/ESP module requires careful work on the brake hydraulic system and vehicle electrics. Typical replacement steps:
- Disconnect the negative battery terminal before starting to avoid electrical damage.
- Read and record ABS/ESP fault codes and module adaptations with a compatible diagnostic tool.
- Protect the brake system: prepare to capture any brake fluid leakage and avoid introducing air into the circuit.
- Unplug electrical connectors and remove mounting bolts securing the hydraulic block and ECU.
- Fit the replacement unit, reconnect electrical connectors and re-secure hydraulic lines using correct torque values.
- Bleed the brake system thoroughly to remove air; perform ABS pump activation and system tests with diagnostics.
- On many PSA vehicles, final coding or adaptation of the ABS/ESP module may be required using a suitable diagnostic interface to ensure full functionality.
When To Replace
Replace the assembly if persistent ABS/ESP warning lights are present and diagnostics point to the hydraulic block or ECU as the fault, if the pump motor does not operate, or if hydraulic leaks and corrosion are evident. Regular maintenance of the braking system and periodic replacement of brake fluid can reduce the risk of hydraulic contamination and premature failure.
Technical Information
- Manufacturer: PSA Group (Citroën, Peugeot)
- Model: Peugeot 206
- Product Codes: 9659137080, 10.0960-1157.3, 10.0206-229.4
- Other Numbers: 4542K0, 4542V7, 4542E1, 4541F1, 45420
If you are matching by part number, verify the listed codes against your vehicle reference before ordering. This assembly is commonly sought under the referenced PSA and ATE numbers; using the exact product code will help ensure correct fitment for Peugeot 206 vehicles.
