22792967 | Genuine GM® Anti-Lock Brake Module For 2012-2014 Express 2500

1. Primary Vehicle Fitment

• Chevrolet Express 2500 / 3500: Model Years 2012, 2013, 2014 (Cargo, Passenger, and Cutaway Van configurations).

• GMC Savana 2500 / 3500: Model Years 2012, 2013, 2014 (Cargo, Passenger, and Cutaway Van configurations).

2. Engine & Drivetrain Compatibility

• 4.8L V8 Vortec (Gasoline / Flex-Fuel)

• 6.0L V8 Vortec (Gasoline / Compressed Natural Gas - CNG)

• 6.6L V8 Duramax Turbo-Diesel

• Rear-Wheel Drive (RWD) & All-Wheel Drive (AWD) platforms.

3. Technical & Installation Notes

• Direct OEM Quality: Manufactured to exact General Motors OE standards for precise CAN-bus communication, fitment, and environmental resistance.

• Programming Required: Replacing this EBCM requires SPS programming and software flashing using a GM TECH2 or MDI diagnostic tool after physical installation to match the vehicle's specific VIN, axle ratio, and tire setup.

1. Core Function

This module serves as the primary computer controlling the vehicle’s active braking safety systems:

• Anti-Lock Braking System (ABS): Monitors wheel speeds and pulses brake fluid pressure to prevent wheel lockup during hard stops.

• StabiliTrak / Electronic Stability Control (ESC): Corrects skidding or loss of lateral traction by selectively applying individual brakes.

• Traction Control System (TCS): Reduces engine power and applies braking force to spinning wheels during acceleration on slippery surfaces.

2. Key Specifications

• Application: 2012–2014 Chevrolet Express 2500 / 3500 & GMC Savana 2500 / 3500.

• Component Type: Electronic Brake Control Module (EBCM).

• Programming Requirement: Mandatory VIN-specific programming (SPS) post-installation via a GM diagnostic tool (MDI / Tech2) to synchronize with the vehicle's CAN bus network.

1. Warning Lights on the Dashboard

The primary indicator of a module failure is the permanent illumination of dashboard warning lamps:

• ABS Warning Lamp remains lit continuously.

• Traction Control / StabiliTrak Light stays on.

• Driver Information Center (DIC) messages such as "Service StabiliTrak" or "Service Brake System".

2. Diagnostic Trouble Codes (DTCs)

Connecting an OBD-II diagnostic tool capable of scanning GM chassis systems will typically reveal specific fault codes:

• C0265 / C0550: Internal Electronic Brake Control Module (EBCM) circuit or board memory fault.

• C0035 – C0050: Wheel speed sensor circuit codes (frequently caused by broken internal solder joints inside the module PCB rather than faulty physical sensors).

• U0121: Lost Communication with Anti-Lock Brake System (ABS) Control Module.

3. Continuous ABS Pump Running (Battery Drain)

A failed power transistor or relay on the internal circuit board can cause the hydraulic pump motor to run continuously—even after turning off the engine and removing the key. This typically results in a completely dead battery overnight.

4. Loss of ABS & Wheel Lockup During Hard Braking

When the module shuts down, the vehicle reverts to basic hydraulic braking. Under emergency stops or braking on wet/icy roads, the wheels will lock up, leading to skidding, increased stopping distance, and loss of steering control.

5. Spongy or Unpredictable Brake Pedal Behavior

Internal valve drivers in a failing electronic module can cause erratic hydraulic pressure delivery, resulting in an unusually soft/spongy pedal feel, or unintended ABS activation (chatter) during normal, low-speed stops on dry pavement.