Common ABS & ESP faults. Professional testing. Practical repair route.
Freestorm provides testing and repair support for ABS pumps, ABS/ESP control modules and hydraulic units across a wide range of vehicle makes & models.
If your ABS or ESP warning light is on, the module shows no communication, or diagnostics indicate an internal fault, we can help assess the unit and manage the repair route where possible.
ABS/ESP units affect essential braking functions
The unit is assessed before repair is confirmed
A repair route may avoid unnecessary replacement
Typical turnaround from receipt of the unit, depending on the fault and testing requirements
Support with fault codes, part numbers and booking
The ABS pump (also referred to as the ABS/ESP hydraulic unit or control module) manages braking pressure to individual wheels to prevent wheel lock-up and maintain vehicle stability.
It receives signals from wheel speed sensors, the brake pressure sensor and related components, and adjusts hydraulic pressure during braking or stability control events.
Because the ABS/ESP system is directly linked to vehicle braking and stability, warning lights, communication faults or internal faults should be assessed professionally.
A faulty ABS pump or module can affect braking performance, traction control and stability assist. Depending on the fault, the vehicle may show a soft brake pedal, brake imbalance, or an ABS/ESP warning light that returns after clearing.
The warning light can also cause NCT / roadworthiness issues and should be investigated before further repairs are carried out.
Remanufacturing is a structured industrial process that returns used parts (cores) to reliable working condition through inspection, replacement of worn parts, rebuilding and testing. A professionally remanufactured ABS unit is not simply a used part — it is a component restored to performance, reliability and value.
Best when:
The original ABS pump/module can be tested and repaired.
Benefits:
Best when:
The original module is severely damaged, corroded or cannot be repaired safely.
Benefits:
Repair is often the most practical first route, but it depends on the condition of the unit and the fault found during testing. If the module is too damaged to repair, we will advise on the next step.
These symptoms may be linked to the ABS pump, ABS module, hydraulic block, wheel speed sensors, wiring, brake pressure sensor or related braking components. Testing is required before confirming the repair route.
ABS / ESP warning light on
The ABS or ESP warning light stays illuminated on the dashboard or returns after clearing.
No communication with ABS module
Diagnostic equipment cannot communicate with the ABS/ESP control module.
Fault code will not clear
The same ABS/ESP fault code returns immediately after being cleared.
Traction control warning light
The traction control warning light appears on the dashboard.
Wheel speed sensor related faults
Signal or communication faults from one or more wheel speed sensors.
Pump motor faults
Internal pump motor failure can prevent correct hydraulic pressure control.
Fault codes vary by manufacturer, model and diagnostic tool. The examples below are common references only and should not be treated as a final diagnosis without testing.
The vehicle cannot communicate with the ABS/ESP control module.
Commonly linked to hydraulic pressure sensor faults.
Signal or communication faults from a wheel speed sensor.
Internal pump motor faults within the ABS unit.
Internal electronic failure can prevent the ABS module from communicating or operating correctly.
The module may not respond to diagnostic equipment due to internal failure, power issues, damaged pins or network faults.
Internal motor failure can prevent correct hydraulic pressure control.
Faulty signals from wheel speed sensors can trigger ABS/ESP faults.
Moisture ingress can cause corrosion, short circuits or intermittent faults.
Low voltage, jump starting or battery issues can trigger or contribute to ABS faults.
Bent, damaged or corroded pins can prevent reliable communication with the ABS module.
Before sending the unit, gather as much information as possible. This helps us confirm the correct repair route and avoid delays.
In many cases, repairing the vehicle’s original ABS unit can help retain the original coding and vehicle configuration. This may avoid the coding often required when fitting a replacement module.
However, coding requirements depend on the vehicle, the fault, the module type and the repair carried out. We will advise where additional coding or diagnostic checks may be required after refitting.
ABS units are directly linked to braking, so every repair route must be handled carefully.
Typical repair route: 2-3 working days from receipt of unit.
Typical turnaround is approximately 2-3 working days from receipt of the unit, depending on the fault, testing requirements, repair complexity, parts availability and courier times.
We will keep you updated if additional time is required.
Complete the booking form with your vehicle, part number and fault details.
We confirm the next steps and provide delivery instructions. Pack the unit securely and include your booking details.
The unit is tested and repaired where possible.
Your unit is returned with the relevant repair information and warranty details where applicable.
Freestorm can help with ABS faults across many common vehicle makes and models.
Audi
BMW
Ford
Mercedes-Benz
Volkswagen
Peugeot
Chery
Toyota
Volvo
ABS units are part of the braking system, so the repair route must be handled carefully and professionally.
Where suitable, repairing the original module can be more practical and cost-effective than replacing it with a new or used unit.
We help review symptoms, fault codes, part numbers and vehicle details before confirming the next step.
From booking to return delivery, Freestorm keeps the repair route simple and organised.
Typical turnaround is approximately 2–3 working days from receipt of the unit, depending on the fault and testing requirements.
No — for most ABS repairs you send the ABS unit only.
We can often advise based on symptoms, fault codes and part numbers, but final confirmation may require testing.
Warranty terms depend on the part type and repair carried out. We will confirm the applicable warranty before or after the repair assessment.
Vehicle make, model, year, registration/VIN if available, part number, fault codes, symptoms and any diagnostic report.
Send us your vehicle details, part number, fault codes or symptoms and we will help identify whether ABS testing and repair is the right route.
