4008500720 | Genuine Wabco ABS / PABS ECU Module
4008500720 | Genuine Wabco ABS / PABS ECU Module is backordered and will ship as soon as it is back in stock.
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4008500720 | Genuine Wabco ABS / PABS ECU Module
Part Number: 4008500720
Condition: New
Manufacture/Brand: Wabco
Description:
An ABS / PABS ECU is the electronic control unit (ECU) that manages the Anti-lock Braking System (ABS) — or in some cases, a Partially Automated Braking System (PABS) — in vehicles, especially trucks, trailers, and buses. ABS / PABS ECU Module E4F 4S4M, 12V
Fits For heavy commercial / medium duty trucks, including Freightliner, Volvo, Mack and other OEMs that use WABCO ABS systems.
Specifications:
|
Calculated Volume (dm³): 4.893 Distance between holes: 6.81x5.28 in Mounting: 3x Ø 6.8 mm System: 4S/4M Technical specification: OE specification Temperature range: -40°C to +75°C Type: PABS ECU E4F Voltage: 12 V |
Purpose:
| Function | Description |
|---|
| Wheel speed monitoring | Detects if a wheel is decelerating too quickly (locking up) |
| Brake modulation | Controls valves to adjust brake pressure to prevent lockup |
| Diagnostics | Stores fault codes (e.g., faulty sensors, wiring, solenoids) |
| Safety override | Prevents unsafe braking behavior on slippery or uneven surfaces |
Signs of a Faulty ABS / PABS ECU Module
|
ABS warning light stays on
Brakes feel locked or unstable during panic stops |
About the Manufacturer – Wabco:
WABCO (originally the Westinghouse Air Brake Company) is a global leader in vehicle control systems for commercial vehicles such as trucks, buses, and trailers. Founded in 1869 and later becoming a part of ZF Friedrichshafen AG in 2020, WABCO is best known for pioneering advanced braking, stability, and suspension technologies.
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