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.
Module, Final Drive Control: Description: Description
The Final Drive Control Module (FDCM) is a microprocessor-based assembly controlling the Transfer Case. Communication is via the CAN serial bus. Inputs include user selectable 2WD and 4WD modes that include 2WD, 4WD AUTO, 4WD LOW and Neutral.
The FDCM has two electrical connectors and is installed inside the passenger compartment behind the driver side knee bolster and is mounted to the left kick panel. On RHD vehicles the FDCM is located in a mirrored position on the right side.
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.