4DAF Euro 6 EBS3-EBS4 Control Unit Faults
The EBS3 and EBS4 control units help manage the braking system in DAF Euro 6 vehicles. However, when these units develop faults, they can cause warning lights, braking problems, or even full system failure. As a result, it’s important to spot early signs and act quickly. In many cases, these faults build up slowly and go unnoticed until the problem gets worse. Therefore, knowing the common causes can help prevent breakdowns and delays. In this article, we’ll look at the most common faults, explain their effects, and show why expert testing and repair are often the best solution.
Common Faults:
- Low voltage detected at Terminal 30 (undervoltage)
- Low voltage detected at Terminal 15 (undervoltage)
- Communication problems with CAN 3 (EBS module not visible)
- Fault within the trailer CAN system
- Issue detected with rear axle steering
CAN Faults
CAN 3, CAN 6a, CAN 6B, CAN 6D, CAN 11
Common EBS3 and EBS4 Control Unit Faults in 4DAF Euro 6 Vehicles
Undervoltage at Terminal 30
To begin with, one of the most common faults is low voltage at Terminal 30. This often triggers warning lights, braking issues, or start-up problems. In many cases, it suggests internal damage to the control unit. Because of this, early action is important. Otherwise, other faults may follow. So, sending the unit in for repair is usually the best step.
Undervoltage at Terminal 15
In addition, low voltage at Terminal 15 is another frequent issue. When this happens, the unit may fail to power up or shut down without warning. As a result, fault codes may appear even when everything else seems fine. Moreover, these issues are rarely caused by wiring alone. Therefore, a full inspection of the control unit is often needed.
Communication Issues on CAN 3
Similarly, faults on the CAN 3 line can stop the EBS unit from being detected. Also, other systems may show errors at the same time. In some cases, the fault may appear and disappear, making it harder to find. However, the problem is often inside the unit itself. So, expert testing is usually the most reliable way to fix it.
Faults Within the Trailer CAN System
Another common problem involves the trailer CAN system. When the trailer and vehicle stop communicating, braking and ABS may be affected. Additionally, trailer warnings may show on the dash. Even if cables look fine, the fault may lie inside the EBS module. For this reason, proper testing is advised before replacing parts.
Rear Axle Steering Faults
Finally, some rear axle steering faults are linked to the EBS3 or EBS4 unit. For example, the driver may notice poor steering control, system errors, or limited turning range. Furthermore, these faults often appear alongside other electronic problems. In many cases, the control unit fails to process steering signals. As a result, repair is usually the best solution.
Part Numbers
EBS3, EBS4, EBS 3, EBS 4, EBS-3, EBS-4, 1998100, 1927400, 1980700, 1910600, 1918601, 4461352030, 4461352010, 4461352020
Affected Vehicles - Shop Now
Common Questions:
We at Essex Recons strive to exceed your expectations in the quality of our repairs. We aim to complete our repairs in a timely fashion while adhering to all ESD safety measures when working on sensitive equipment.
These units come with a 36 month warranty.
To pay for the rebuild, simply click the product link(s) above to select the module you require. After that, place your order directly through our website. Once your order is complete, carefully package your unit inside a sturdy box with plenty of protective material. In addition, make sure you include your contact details and order number inside the box. Then, send your package to us using a tracked courier service. As soon as we receive your unit, we will test, rebuild, and return your module, complete with a 36-month warranty.
To get your unit collected, simply give us a call on 01708 206343 for your free collection. Then, you will be able to speak to a friendly member of our team who will guide you through the collection process.
