Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Replace and Program Control Module
To program a replacement control module, perform the following procedure:
- Install EL-49642 SPS Programming Support Tool.
- Access the Service Programming System (SPS) and follow the on-screen instructions.NOTE:
Only run Prepare the Control Module for Removal if the module requires replacement but the assembly was not replaced.
- On the SPS Supported Controllers screen, select RDCM Rear Differential Clutch Control Module - Prepare the Control Module for Removal and follow the on-screen instructions.NOTE:
The Rear Differential Clutch Control Module can now be removed and replaced.
- On the SPS Supported Controllers screen, select RDCM Rear Differential Clutch Control Module - Programming and follow the on-screen instructions.
- On the SPS Supported Controllers screen, select RDCM Rear Differential Clutch Control Module - Setup and follow the on-screen instructions.
- At the end of programming, choose the "Clear All DTCs" function on the SPS screen.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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