2502869C92 | Genuine International® Electronic Hydraulic ABS Control Module Kelsey Hayes

A Electronic Hydraulic ABS Control Module 2502869C92 is a critical safety component in modern vehicles, especially trucks and buses, that manages the Anti-lock Braking System (ABS). It combines electronic control and hydraulic brake modulation in one unit. Electronic Hydraulic ABS Control Module Kelsey Hayes For International 4700, RE300, FE300

General Specifications

 Models compatible with this part include:

- RE 300 Integrated School Bus
- 3000 Integrated Bus
- 4900 Medium Truck
- FE 300 Integrated Commercial Bus
- 3800 School Bus Chassis
- 30RE Amtran RE Bus
- 4700 Medium Truck
- 30FE IC Bus FE Series
- FE 300 Integrated School Bus
- 1652 Stripped Chassis
- 3000 Bus Chassis

Purpose & Function

1. Prevent Wheel Lock-Up

• During hard braking, wheels can lock, causing loss of control.
• The module modulates hydraulic brake pressure to keep wheels rotating, maintaining steering control.

2. Improve Vehicle Stability

• Works with Electronic Stability Control (ESC) and Traction Control systems.
• Adjusts braking pressure on individual wheels to prevent skidding or rollover.

3. Optimize Braking Performance

• Ensures shorter stopping distances by balancing brake pressure between wheels.
• Reduces tire wear and improves braking efficiency.

4. Coordinate with Vehicle Systems

• Communicates with the engine ECU and other modules.
• Adjusts braking for adaptive cruise control, hill-start assist, or brake assist features.

5. Safety Compliance

• Meets modern vehicle safety regulations by integrating ABS and stability functions.
• Essential for heavy trucks and buses to safely handle heavy loads under emergency braking.

Signs of Bad

1. ABS Warning Light

• The ABS light on the dashboard stays on or flashes
• Indicates the module has detected a fault in the system

2. Brake Warning Lights

• Other lights, such as Brake System Warning or ESC warning, may illuminate
• Sometimes appears along with the ABS light

3. Brakes Lock or Pulsate Abnormally

• Wheel lock-up during braking, especially on slippery surfaces
• Brake pedal may pulse, feel soft, or hard unexpectedly

4. Loss of ABS Function

• ABS stops working entirely
• Traction control or stability control may also be disabled

5. Erratic Brake Behavior

• Uneven braking or sudden modulation when braking normally
• Engine may derate in some vehicles with integrated safety systems

6. Fault Codes on Diagnostics

• Diagnostic tools may show:
  • Communication errors with ABS module
  • Fault codes related to hydraulic solenoids or wheel speed sensors
  • Example codes: C1201, C1234 (depending on manufacturer)

7. Vehicle Pulls or Skews While Braking

• Module may mismanage brake pressure between wheels
• Car or truck pulls to one side during braking

About International / Navistar

International, a brand of Navistar International Corporation, is a leading American manufacturer of commercial trucks, buses, and diesel engines. With a history dating back to the early 1900s, International is known for producing durable and reliable vehicles used in freight, construction, and municipal operations.

Navistar has built a strong reputation in the trucking industry by focusing on innovation, performance, and long-term dependability. Their vehicles and components are trusted by fleets and drivers across North America and beyond.