Overview

Mopar Replacement Transfer Case Control Modules

Mopar Replacement transfer case control modules are available for a variety of Jeep and Dodge applications. They control your vehicle's electronic 4WD system. The primary function of a transfer case control (TCC) module involves processing, executing, and verifying shift requests.

But how does a TCC work? First, it uses your vehicle's speed and its real-time transfer case mode to process shifts. Then, it activates your transfer case encoder motor for a full shift. If necessary, it might activate your front differential locking actuator, as well. If the module doesn't process a shift, however, the selector switch will turn on and flash for 30 seconds.

Original TCC modules can malfunction over time. When this happens, it may flash a warning message or trigger a warning light on your vehicle's Driver Information Center. Other telltale signs of a faulty TCC module include a faulty 4x4 system, a service 4WD message that keeps popping up, and a frequently stalling engine. Installing a new TCC module is necessary if you experience these red flags.

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