Important Notice

Haldex Control Unit 2M Gen 3 Semi-Trailer Adige T3SP38 TC 20-45

DiPa Code:
EBS032R
OEM Code:
823008001
Brand:
HALDEX
Condition:
Remanufactured
Revision of EBS Module for the Control and Adjustment of Air Pressure in Brakes
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Details

The Haldex control unit OE 823008001 is an EBS EB+ Gen3 modulator for heavy trailers and semi-trailers, integrating valve and electronics in a single body. It manages ABS, EBS, electronic load adjustment, and stability control, coordinating pneumatic brakes with wheel sensors and modulators (4S/2M). Compatible with 12–24 V, it ensures safe, uniform braking adapted to the load, preventing rollovers and excessive wear. Ideal for Adige semi-trailers.

Typical Errors and Defects

Typical Defects:
Constant or intermittent activation of the trailer brake warning light
Reduction of the overall braking efficiency of the trailer or irregular braking between axles and right/left sides
The stability control and load sensor do not work: abnormal behaviors under different load conditions or during critical maneuvers

Techinical Info

The Haldex control unit with OE code 823008001 is a EBS EB+ Gen3 modulator for heavy trailers and semi-trailers with a pneumatic braking system.
It is an integrated valve + electronic control unit that manages the braking of the towed vehicle by combining ABS, EBS, load adjustment, and stability control functions, in a typical configuration of 4 wheel sensors / 2 modulators (4S/2M).

This component belongs to the Haldex EB+ Gen3 family, designed to replace purely mechanical distributors with a compact module that integrates valve body, electronics, air connections, and electrical connections into a single block mounted on the trailer frame.

Technical features

  • Manufacturer: Haldex, EB+ generation 3 braking system
  • Type: master EBS modulator with integrated ECU for trailers and semi-trailers
  • Application field: complete air braking systems for trailers and semi-trailers with independent EBS
  • Base configuration: standard system with 4 wheel sensors and 2 modulators (4S/2M), with the possibility of reduced configurations 2S/2M depending on calibration
  • Power supply: multi-voltage electronics with a typical operating range of 12/24 V (approximately 8–32 V)
  • Integrated functions: EBS, ABS, electronic load adjustment, stability control, and anti-rollover of the trailer
  • Internal valves: integrated quick release valve and anti-compound valve to prevent unwanted overlaps between service brake and parking brake
  • Air connections: tank connections generally threaded M22, outputs to brakes and suspensions M16, double connection to the trailer's air tanks
  • Electrical connections: up to more than ten sockets printed on the control unit body for power supplies, wheel sensors, pressure transducers, I/O lines, and CAN communication

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

Functionality

  • Electronic management of trailer braking through EBS logic, replacing traditional mechanical distributors
  • Processing of wheel speed sensor signals for ABS functions and to modulate braking pressure based on grip
  • Electronic pressure adjustment based on load (electronic load sensing) to maintain more consistent braking distances and reduce wear on tires and braking components
  • Stability control of the trailer with rollover prevention logic in critical conditions (fast curves, sudden maneuvers, intense braking)
  • Coordination of braking between different axles through simultaneous management of two modulators and multiple wheel sensors
  • Integration with monitoring and telematics systems via CAN network, with the possibility of exchanging data with TPMS, displays, and remote modules

Model applications

  • Adige semi-trailers

Typical defects

  • Constant or intermittent activation of the trailer brake warning light
  • Reduction of the overall braking efficiency of the trailer or irregular braking between axles and right/left sides
  • The stability control and load sensor do not work: abnormal behaviors under different load conditions or in critical maneuvers

Final conclusions

The EBS Haldex OE 823008001 group represents the main component of the electronic braking system EB+ Gen3 for heavy Adige trailers and semi-trailers.
It integrates the modulating valve and electronic control unit into a single body and manages ABS, EBS, electronic load sensing, and stability control, significantly contributing to the safety and consistency of the braking of the towed vehicle.

DIPA has a wide range of spare parts dedicated to the Truck world, construction vehicles, and industrial equipment. Not only that: it has refurbished components with performance equal to new, which can provide savings in replacement 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 its full functionality and safety in a short time.