Transfer Case Control Module

The transfer case control module in a 2015 Jeep Grand Cherokee is a crucial component of the vehicle's four-wheel drive system. It's responsible for managing the power distribution between the front and rear axles. Knowing its location is essential for maintenance, troubleshooting, or replacement.

Location

The transfer case control module is located in the rear of the vehicle, specifically in the trunk area. To access it:

1. Open the rear hatch of your Jeep Grand Cherokee.

2. Lift the floor cover in the cargo area to expose the spare tire compartment.

3. Remove the plastic cover that conceals the trunk latch mechanism.

4. Look on the passenger side of the exposed area, behind the side panel.

The module is mounted on two studs and is typically hidden from view when all panels are in place.

Identification

The transfer case control module is a small black plastic box with two electrical connectors attached to it. It's secured to the vehicle using two 10mm nuts on mounting studs.

Removal Process

To remove the module:

1. Disconnect the vehicle's battery.

2. Raise and secure the cargo area floor cover.

3. Remove the plastic cover over the trunk latch mechanism.

4. Gently pull up the side panel to access the module.

5. Use a 10mm socket to remove the two nuts securing the module.

6. Carefully disconnect the two electrical connectors by pressing their release tabs.

Important: After replacing the module, it may require reprogramming by a dealership to ensure proper functionality with the vehicle's systems.

Common Issues

Symptoms of a failing transfer case control module include:

  • Clunking noises during startup
  • Difficulty engaging four-wheel drive
  • Service 4WD system warnings on the dashboard
  • Unexpected shifts between drive modes

If you experience these issues, inspecting and potentially replacing the transfer case control module might resolve the problem.

FAQs About Jeep Grand Cherokee Transfer Case Control Module

    • Can I replace the transfer case control module myself?
      While physically replacing the module is possible for a DIY enthusiast, professional reprogramming may be required after installation.
    • How often does a transfer case control module need replacement?
      There's no set interval; replacement is typically only necessary if issues arise with the four-wheel drive system.
    • Will a new module fix all four-wheel drive issues?
      Not necessarily. While it can resolve many problems, other components of the four-wheel drive system may also be at fault.

Remember, working on crucial vehicle systems like the four-wheel drive can be complex. If you're unsure about any step in the process, it's best to consult with a certified Jeep technician to ensure proper diagnosis and repair.