EBS Modulator Semi-Trailer 4801020610

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

The OE code 4801020610 identifies an EBS modulator for trailer/semi-trailer. It is a WABCO TEBS E (Trailer Electronic Brake System - Ver E) in 4S/3M configuration with PEM (Pneumatic Extension Module).

Technical features

• System: 4S/3M (4 wheel speed sensors / 3 modulation channels)
• Version: TEBS E (Trailer Electronic Brake System - Ver E) with PEM (Pneumatic Extension Module)
• Power supply: 24 V
• Maximum operating pressure: 8.5 bar
• Protection: IP 6K9K
• Approximate dimensions: 224 x 254 x 198 mm
• Approximate weight: 5.6 kg

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

Functions

• Electro-pneumatic modulation of the trailer braking with integrated EBS/ABS logic.
• Management of wheel speed sensors to prevent wheel lock and maintain stability during braking.
• Communication interface with the towing vehicle (trailer network) for exchange of brake requests and diagnostics.
• Integration of the PEM section for pneumatic extensions and distributions which, depending on the trailer fitment, reduce the use of separate pneumatic components.
• System diagnostics and fault memory, with parameters configurable according to the trailer system.

Model applications

• Trailers/semi-trailers equipped with WABCO TEBS E Trailer EBS in 4S/3M configuration.

Common faults

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

Final conclusions

The OE code 4801020610 identifies a WABCO TEBS E trailer EBS modulator in 4S/3M configuration with PEM.

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