68046389AA | Genuine Mopar® ABS Control Module 2009-2010 Jeep Grand Cherokee

**Description**: An Anti-Lock Brake Control Module **68046389AA**(also called ABS Control Module, ABS Module, or ABS ECU) is the computer that controls the anti-lock braking system in a vehicle.  It is the main electronic part that decides when and how the ABS should activate to keep the wheels from locking during braking. **Part Number**: 68046389AA **Condition**: Refurbished & Tested – 100% Working Condition **Manufacture/Brand**: Mopar **Fits 68046389AA** For Year Make ModelEngineImportant vehicle option details2009-2010 Jeep Commander6 Cyl 3.7L, 8 Cyl 4.7L, 8 Cyl 5.7LLimited 2WD, Limited 4WD, Overland 2WD, Overland 4WD, Sport 2WD, Sport 4WD2009-2010 Jeep Grand Cherokee6 Cyl 3.0L Diesel, 6 Cyl 3.7L, 8 Cyl 4.7L, 8 Cyl 5.7L, 8 Cyl 6.1LLaredo 2WD, Laredo 4WD, Limited 2WD, Limited 4WD, Overland 2WD, Overland 4WD, SRT8 4WD **Purpose of using 68046389AA** **:** **1\. Prevent Wheel Lock-Up** The module monitors wheel speeds and prevents them from locking when you brake hard. This helps avoid: - Skidding - Sliding - Loss of control **2\. Maintain Steering Control While Braking** If wheels lock, you cannot steer. The ABS Control Module keeps the wheels rotating just enough so you can **turn the vehicle** while braking. **3\. Improve Vehicle Stability** By rapidly adjusting brake pressure, the module helps the vehicle stay balanced and prevents sideways sliding, especially on: - Wet roads - Ice or snow - Gravel or dirt - Abrupt stops **4\. Control the ABS Pump and Valves** The module commands the hydraulic unit to: - Reduce brake pressure - Reapply pressure - Pulse the brakes many times per second This happens automatically and much faster than a human could do. **5\. Run Diagnostic Checks** The module constantly checks: - Wheel speed sensors - ABS pump - Hydraulic valves - Internal circuits If it detects a problem, it turns on the **ABS warning light**. **6\. Work With Other Safety Systems** The ABS Control Module often shares data and works together with: - **Traction Control System (TCS)** - **Electronic Stability Control (ESC/ESP)** - **Brake Assist** - **Hill-Start Assist systems** These systems rely on the module to help keep the vehicle safe. **Sings of Bad Anti-Lock Brake Control Module 68046389AA** **:** **1\. ABS Warning Light Stays On** - The dashboard ABS light (sometimes with traction control light) turns on and stays on. - Indicates the module has detected a problem or lost communication with sensors. **2\. ABS Doesn’t Activate** - During hard braking, the pedal doesn’t pulse. - You may hear no ABS pump noise. - Wheels can lock up, especially on slippery surfaces. **3\. Brakes Lock Up or Skid** - Without proper control from the module, the ABS cannot modulate brake pressure. - Wheels may lock during braking, increasing the risk of losing steering control. **4\. Brake Pedal Problems** - Pedal may feel hard, soft, or spongy. - Brakes may respond inconsistently. **5\. Traction Control or Stability Control Lights On** - Systems like TCS or ESC often rely on the ABS module. - A failing module can trigger multiple warning lights. **6\. Erratic ABS Behavior** - ABS may engage **randomly** without heavy braking. - Pulsing or vibration in the brake pedal at normal speeds. - Strange buzzing or grinding noises from the brake system. **7\. Speedometer or Wheel Data Issues (in some vehicles)** - If the module provides wheel speed data, you may see speedometer jumping or inaccurate readings. **8\. Diagnostic Trouble Codes (DTCs)** - Scan tools may show ABS module-related errors: - Communication failures - Sensor circuit failures - Pump or valve errors

• Brand: Mopar
• Manufacturer Part Number: 68046389AA
• Country of Origin: United States