Some Chrysler Aspen owners report experiencing persistent issues with the "Service 4WD" light even after replacing the transfer case motor. These problems may stem from a faulty switch within the system, which can contribute to the warning light's activation. Additionally, some owners note that a flashing 4Low light and multiple warning lights could indicate underlying electrical issues or faults in the shift motor. Wear or disconnection in the transfer case linkage can also prevent proper switching between 2WD and 4WD, triggering system errors. Furthermore, damaged or corroded wiring connecting the 4WD system sensors and motors may lead to signal loss, activating the 4WD warning light. Routine maintenance of the 4WD system, including changing transfer case fluid and checking the wiring system, is crucial to prevent these issues.
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