EBS Module Trailer Repaired 4801020310

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

The code 4801020310 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 declared value ~123 psi)
• Mounting spacing: 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 trailer braking according to 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 diagnostic management
• Safety strategies and degraded modes in case of anomalies (power, communication, sensors, outputs)

Model applications

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

Common faults

• Unstable pressure on the lines
• The system is detected erratically by the diagnostic tool
• The diagnostic tool detects unstable voltage
• Warning light on the instrument panel

Final conclusions

The code 4801020310 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 a 4S/3M configuration.

DIPA has a wide range of spare parts dedicated to the Truck sector, construction vehicles and industrial equipment. It also offers reconditioned components with like-new performance, allowing 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.