Important Notice

EBS modulator for trailer dynamic braking

DiPa Code:
EBS011R
OEM Code:
4801020630
Brand:
WABCO
Condition:
Remanufactured
Overhaul of the electronic control unit for trailer braking management integrated with the vehicle's EBS system
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Typical Errors and Defects

Typical Defects:
No communication/diagnosis with the ESP control unit possible
Loss of full functionality, intermittent or permanent
Detected incorrect battery voltage value

Techinical Info

The code 4801020630 is a WABCO trailer EBS modulator (Trailer Modulator), belonging to the TEBS E family and, in this case, the Premium version with PEM (Pneumatic Extension Module).

Technical specifications

  • Type: TEBS (Trailer Electronic Braking System) electronic braking modulator for trailer
  • Platform: TEBS E with PEM (Pneumatic Extension Module)
  • System configuration: 4S/3M (4 wheel speed sensors / 3 modulation channels)
  • Voltage: 24 V
  • Operating temperature: -40 °C / +65 °C
  • Protection: IP6K9K
  • Maximum operating pressure: approximately 8.5 bar (typical value declared as ~123 psi)
  • Mounting center distance: 70 mm
  • Approximate dimensions: 224 × 259 × 198 mm
  • Approximate weight: about 7.0 kg

DIPA can intervene to overhaul these components thanks to its experience and expertise.

Functions

  • Electropneumatic modulation of the trailer braking in TEBS logic
  • Management of wheel speed sensor signals (trailer ABS) and control of modulation channels (3M)
  • Interface with the trailer network (TEBS E functions) and handling of diagnostics
  • Safety strategies and degraded modes in case of faults (power, communication, sensors, outputs)

Model applications

  • Trailers and semi-trailers equipped with a TEBS E unit in 4S/3M configuration.

Typical faults

  • Unstable pressure in the lines
  • The system is detected erratically by the diagnostic tool
  • The diagnostic tool detects unstable voltage
  • Warning light illuminated on the dashboard

Final conclusions

The code 4801020630 is the WABCO EBS modulator for trailers. Technically, it is a TEBS E Premium with PEM (Trailer Electronic Braking System with Pneumatic Extension Module) in 4S/3M configuration.

DIPA has a wide range of spare parts dedicated to the truck sector, construction vehicles and industrial equipment. Not only that: it offers reconditioned components with like-new performance that allow cost savings on replacements while contributing to environmental protection through the circular economy. If the spare part you need is not available, don’t worry: DIPA can refurbish your part "on demand", restoring full functionality and safety in a short time.