Important Notice

EBS modulator - trailer dynamic braking control

DiPa Code:
EBS015R
OEM Code:
41211413
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 faults:
Unstable pressure on the lines
The diagnostic tool detects the system erratically
The diagnostic tool detects unstable voltage
Indicator light illuminates on the instrument panel

Techinical Info

The OE code 41211413 identifies a WABCO axle EBS modulator of the second generation, used as an electro-pneumatic unit for regulating brake pressure on the axle. It is a "hybrid" component because it integrates the pneumatic part (inlet/outlet valves, dump, redundant lines) and the electronic part (control and diagnostics), communicating on the vehicle network with the EBS/ECU control unit and managing sensors and actuators connected to the axle.

Technical specifications

  • Type: EBS Axle Modulator 2-Channel
  • Application configuration: Drive axle 2S/2M/4W (2 wheel speed sensors, 2 modulation channels, 4 wheels/rotor)
  • Supply voltage: 24 V
  • Nominal current: 10 A
  • Maximum operating pressure: 12.8 bar
  • Protection rating: IP6K6K/IP6K9K
  • Temperature range: -40 °C / +80 °C
  • Mounting and dimensions: Bolt spacing: 100 mm; Ports: 2x M12x1.5; Indicative dimensions: 222 x 154 x 139 mm; Indicative weight: about 3.05 kg

DIPA can refurbish these components thanks to its experience and expertise.

Functions

  • Electro-pneumatic regulation of brake pressure on two channels of the axle with ABS/anti-slip management based on EBS commands
  • Acquisition and use of signals from wheel speed sensors connected to the axle
  • Control with safety and redundancy logic in case of loss of electronic command or degraded conditions
  • Diagnostic integration (electrical/pneumatic faults) and communication on the vehicle network (CAN) with the EBS ECU
  • Management of inputs for pad wear sensors
  • Provision/management of trailer-related functions in specific configurations (dedicated interfaces in the module connector, depending on installation)

Model applications

  • Trailers and semi-trailers equipped with EBS in 2S/2M/4W configuration.

Typical 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 dashboard

Final conclusions

The WABCO OE 41211413 is a 2-channel axle EBS modulator in 2S/2M/4W configuration.

DIPA has a wide range of spare parts dedicated to the truck world, construction vehicles and industrial equipment. In addition, it offers remanufactured components with performance equal to new, allowing savings on replacements and contributing to environmental protection through the circular economy. If the part you need is not available, no problem: DIPA can refurbish your unit "on demand," restoring full functionality and safety in a short time.