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 or Reprogram Control Module
To program a replacement or an existing 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.
- On the SPS Supported Controllers screen, select K4 Assist Step Control Module - Programming and follow the on-screen instructions.NOTE:
If during programming a message is displayed that the same calibration is attempting to be installed, select OK to proceed - this process will also program the VIN.
- At the end of programming, choose the "Clear All DTCs" function on the SPS screen.
- Open and close both the driver and passenger door to verify operation. Doors may need to opened and closed two times for the assist step control module to learn the board home positions.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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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