Some Chrysler Aspen owners report experiencing persistent issues with the 4WD SVC light remaining illuminated, even after replacing the transfer case motor. These problems may stem from damaged wiring or loose connections to the transfer case shift motor. To temporarily mitigate the issue, some owners manually shift the transfer case to AWD mode and disconnect the shift motor electronically, allowing them to drive until a proper fix can be implemented. Additionally, the 4WD SVC light could indicate a faulty switch or other related failures, which may necessitate further replacements, such as the transfer case and FDCM, as advised by dealerships. Routine maintenance of the 4WD system, including timely fluid changes and inspections of components like solenoids and sensors, is crucial in preventing the "Service 4WD" light from activating.
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