ABS Module Repair

At Ecumotorstock we specialise in professional ABS unit repair nationwide. With more than 15 years of experience in car electronics, we offer a service that conveys trust, professionalism and guaranteed results.

Request information

Advanced Technology and an ABS Module Ready to Fit

We have test benches and state-of-the-art diagnostic equipment that allow us to detect electronic faults even at microelectronic level.

After the repair, we return the ABS module to you ready to fit in the vehicle, fully checked and calibrated.

This way we save the workshop from having to carry out additional complex dismantling or waste time on reprogramming: you will only have to install the repaired unit and the braking system will be operational again.

Our technological efficiency minimises waiting times (usual repairs in 48 hours) and ensures that every module works again as if it were new, with a warranty of operation and reliability.

Symptoms of a Faulty ABS Module

ABS warning light on: The ABS warning light on the instrument cluster stays on, either steady or flashing. It is the clearest sign that something is not working properly in the anti-lock system.
Vibrations in the brake pedal: You feel the brake pedal vibrate or pulse unusually during normal braking. This can happen if the ABS activates erroneously or if there is an internal malfunction.
Uneven braking or pulling to one side: The vehicle tends to pull to one side when braking or the braking distance is longer than normal. A faulty ABS module can cause one wheel to brake with a different intensity or the ABS system to not regulate the braking pressure properly.
Other safety warning lights on: In some cases, an ABS fault can disable associated functions such as stability control (ESP/ESC) or traction control (ASR/TCS). This shows up as the warning lights for these systems being lit on the dashboard, alongside the ABS fault.

If you notice one or more of these symptoms, it is very likely that the ABS module needs inspection and professional repair. Ignoring these signs could compromise the effectiveness of your brakes and the safety of the vehicle.

Request information today

Common Faults in ABS Modules

ABS modules (also called ABS ECUs or ABS control units) can develop a number of typical faults with use and over time. The most common faults we fix at Ecumotorstock include:

No communication with the ABS unit: The diagnostic scanner cannot connect to the ABS module, reporting a communication fault (the ECU does not respond). This fault is usually caused by internal defects in the module's electronics.
Hydraulic pump motor failure: The ABS pump motor (responsible for generating pressure in the system) fails through wear or damage to its components. As a result, the ABS may fail intermittently or stop working, logging “defective pump motor” errors.
Faulty internal pressure sensor: Many ABS modules include a sensor that measures braking pressure. When this pressure sensor fails, the system detects incorrect values and usually switches on the ABS warning light, storing fault codes specific to the sensor.
Wheel speed sensor faults: The ABS works with a sensor at each wheel. A faulty module can constantly report wheel sensor faults (even if the physical sensor is fine) because of problems in the reading circuits. This causes unwarranted ABS activation or deactivation of the system.
Internal electronic faults: This includes solder joints cracked by vibration, burnt electronic components, and worn internal relays or solenoid valves. These internal faults generate assorted error codes or erratic ABS operation (for example, random activation, a braking circuit locking, etc.).

Request information today

Typical ABS Module Faults by Make and Model

Alfa Romeo / Lancia

Alfa Romeo and Lancia models use ABS units shared with Fiat; their typical faults are listed below in the Fiat section.

Audi / SEAT / Škoda (see VAG Group)

Audi, SEAT and Škoda vehicles use ABS modules from the Volkswagen Group; see the details in the VAG section.

BMW

ATE 34.51: Pump motor failure.
ATE MK20: Pump motor failure; no communication with the unit.
ATE MK60: Fault code 5E20 (faulty pressure sensor); pump failure; communication failure; incorrect wheel speed sensor readings; internal ECU error.
Bosch 1.24 / 1.34: No communication with the module; recurring faults reading the wheel sensors.
Bosch 5.7 ASR: Loss of communication; wheel sensor faults.
Bosch 8.0 ESP: No communication; pump motor failure; pressure sensor fault.

Daewoo

Bosch 5.3 / 5.3 ABD: No communication with the unit; incorrect wheel sensor readings; ABS warning light always on; pump motor failure; internal valve relay fault.
Kelsey Hayes EBC 430: Internal relay failure; no communication with the module.

Fiat (incl. Alfa Romeo / Lancia)

ATE MK20: Pump motor failure; communication failure with the unit.
Bosch 1.34: No communication with the module; wheel sensor faults.
Bosch 5.3: Loss of communication; incorrect wheel sensor readings.
Bosch 5.7: No communication with the ECU; wheel sensor faults.
Bosch 8.0: Communication failure; pump motor fault.
TRW EBC 430 NG: No communication with the ABS module.

Ford (incl. Mazda)

ATE MK20 (TCS): Pump motor failure; no communication.
ATE MK4: Communication failure with the unit; pump failure.
ATE MK60: Fault code C1288 (faulty pressure sensor); pump failure; communication failure; wheel speed sensor faults; internal electronic fault.
ATE MK70: No communication; pump failure; wheel sensor faults.
Bosch 1.34: No communication with the ABS module; incorrect wheel sensor readings.
Bosch 5.3 ASR: No communication; faults reading the wheel sensors.
Bosch 5.7: Loss of communication; wheel sensor faults.
TRW EBC 450: No communication; fault in one of the wheel sensors; pump motor failure.

Honda

Bosch 5.3: No communication with the ECU; incorrect wheel sensor readings.

Mercedes-Benz

Bosch 1.14 / 1.32: Communication failure with the module; pump motor failure; CAN network failure (internal communications). Typical error codes: C1000 (faulty ESP control unit), C1011 (faulty valve relay), C1332 (brake assist valve fault).
Bosch 5.3 ABD: Loss of communication; wheel sensor faults.
Bosch 5.7 ASR: No communication with the unit; incorrect wheel sensor readings.
Bosch 8.0: Communication failure; pump motor fault.
Bosch SBC: Error code C249F (SBC unit with its maintenance/service cycles used up, needs reactivation)..

Nissan (see Renault)

Many Nissan ABS units share a platform with Renault; see the Renault section.

Opel (Vauxhall)

ATE MK60: Fault code C0131 (faulty pressure sensor); pump motor failure; no communication; wheel speed sensor faults; internal module error.
Bosch 1.24 / 1.34: No communication with the ECU; faults reading the wheel sensors.
Bosch 5.3 / 5.3 ASR: No communication; wheel sensor faults.
Bosch 8.0: Communication failure; hydraulic pump fault.
Bosch 8.0 ESP: Loss of communication; pump failure; internal pressure sensor fault.
Kelsey Hayes EBC 430: Faulty internal relay; no communication with the unit.
TRW EBC 430 NG: No communication with the ABS module.

PSA (Peugeot / Citroën)

ATE MK60: Fault code C1246 (faulty pressure sensor); pump motor failure; communication failure; wheel speed sensor faults; internal electronic fault.
ATE MK70: No communication with the unit; pump fault; incorrect wheel sensor readings.
Bosch 1.34: No communication with the module; wheel sensor faults.
Bosch 5.3: No communication; wheel sensor faults.
Bosch 5.7 ASR (ASG): Loss of communication; incorrect wheel sensor readings.
Bosch 8.0: Communication failure; pump motor fault.
TRW EBC 440: Internal pressure sensor fault; no communication with the unit.

Renault (incl. Nissan/Dacia)

ATE MK60: Pressure sensor fault; pump failure; no communication; wheel speed sensor faults; internal ECU error.
Bosch 5.3: No communication with the module; incorrect wheel sensor readings.
Bosch 8.0 ESP: Loss of communication; pump motor failure; pressure sensor fault.

Rover

ATE MK60: Pressure sensor fault; pump failure; no communication; wheel speed sensor faults; internal ABS module error.

Suzuki

ATE MK60: Fault code C1028 (faulty pressure sensor); pump failure; communication failure; wheel speed sensor faults; internal unit error.

Toyota

ATE MK60: Fault code C1246 (faulty pressure sensor); pump motor failure; no communication; wheel speed sensor faults; internal ECU error.

VAG (Volkswagen, Audi, SEAT, Škoda)

ATE MK20: Hydraulic pump fault; communication failure with the module.
ATE MK20 EDS/ESP: Pump failure; communication failure.
ATE MK4: No communication with the unit; pump motor failure.
ATE MK60: Fault code 01435 (faulty pressure sensor); pump failure; no communication; incorrect wheel sensor readings; internal ECU error.
Bosch 1.34: No communication with the module; wheel sensor faults.
Bosch 5.3 / 5.3 ABD: Loss of communication; wheel sensor faults.
Bosch 5.7: No communication; incorrect wheel sensor readings.
Bosch 8.0: Communication failure; pump motor fault.

Volvo

ATE MK20 / MK20 ESP: Pump motor failure; communication failure with the unit.
ATE MK25: No communication; pump fault; problems reading the wheel sensors.
ATE MK60: Fault code BCM-0130 (faulty pressure sensor); pump failure; communication failure; wheel speed sensor faults; internal module error.
Bosch 5.3: No communication with the ECU; wheel sensor faults.
Bosch 5.7: Loss of communication; incorrect wheel sensor readings.

Step-by-Step Repair Process with Ecumotorstock

Our nationwide ABS repair service is designed to make the whole process easy, quick and hassle-free for you. Here is how we work, step by step, from the moment you request the service until you have the module back in your hands:

1. Contact and Collection

You contact Ecumotorstock (by phone, website or WhatsApp) and request the repair of your ABS module. We arrange free, fast collection of the unit from your workshop or home, anywhere in Spain. We take care of the urgent transport so that the module reaches our premises as quickly as possible.

Request information today

2. Complete Diagnosis

Once it arrives, our technicians carry out a thorough diagnosis of the ABS module with specialist equipment. We identify all faults, error codes and damaged components. At this step we tell you the condition of the module and confirm the repair quote before proceeding (if it was not agreed beforehand).

👉 Request Information Today

3. Professional Repair

Once approved, we carry out the ABS module repair using microelectronics tools, SMD soldering and original or equivalent-quality parts. Each defective component is replaced or repaired following the manufacturer's standards. We also reinforce solder joints and critical components to prevent future faults, especially in areas prone to vibration or moisture.

Request information today

4. Testing and Quality Verification

When the repair is complete, the ABS module undergoes a battery of tests on our simulation bench. We check that all functions work correctly: OBD communication, pump response, sensor readings, valve activation and response under different conditions. We only consider the job finished when the module passes all quality checks, ensuring it will be as good as new and reliable.

👉 Request Information Today

5. Delivery, Ready to Fit

We send the ABS module back to you fully repaired and tested, ready to install in the vehicle. The unit will keep its original coding, so you will not need any additional programming in most cases – simply plug it in and use it. Thanks to our optimised logistics, you will have your module back in approximately 48/72 hours from collection, minimising the time the vehicle is off the road. In addition, all our ABS repairs come with a warranty (check the period offered, normally 1 year), giving you peace of mind and support after installation.

Request information today

Throughout the process we keep up transparent communication: we let you know when we receive the module, about the diagnosis findings, the progress of the repair and the return shipment. Our aim is for you to be kept informed at all times and confident in our service.

Benefits of Repairing Your ABS Module Instead of Replacing It

Choosing to have your ABS module repaired by Ecumotorstock instead of replacing it with a new or second-hand one offers numerous advantages:

Cost savings: Repairing is usually much cheaper than buying a new ABS module from the dealer. It is also more cost-effective than fitting a used unit of uncertain origin. With our service you save money without compromising quality or safety, getting a module in perfect condition for a fraction of the cost of a new one.
Sustainability and eco-responsibility: By repairing, you are extending the service life of an electronic component and avoiding waste. You help reduce electronic scrap and make use of existing resources. At Ecumotorstock we promote the circular economy: it is a more ecological and sustainable solution than indiscriminate part replacement.
You keep the original coding: Your repaired ABS module is the same original unit from your vehicle, so it retains the factory coding and the settings specific to your car. This ensures full compatibility when refitting it, with no need for complex reprogramming or teaching the system new components. You avoid configuration problems and make sure all functions (ABS, ESP, traction control, etc.) integrate perfectly as they did before the fault.

👉 Request Information Today

Request a Quote or Collection Now

Does your ABS show faults or warning lights? Don't hesitate: put your module in the hands of our experts and get your braking safety back.

At Ecumotorstock we offer a complete, fast and reliable service throughout Spain.

Contact us today to request a personalised quote or to arrange collection of your faulty ABS module.