Unblocking Ram transfer case motor

    Feb. 15, 2024
    This bulletin applies to 2016-2020 RAM 1500/2500/3500/4500 vehicles equipped with Elec Shift On Demand transfer case.
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    Photo courtesy of Chrysler
    The customer may note that the Service 4WD message is displayed as failure to complete transfer case range shifts and/or noisy (clunking/ratcheting) transfer case range shifts.
    The customer may note that the Service 4WD message is displayed as failure to complete transfer case range shifts and/or noisy (clunking/ratcheting) transfer case range shifts.

    This bulletin applies to 2016-2020 RAM 1500/2500/3500/4500 vehicles built on or before April 8, 2020, equipped with Elec Shift On Demand transfer case.

    The customer may note that the Service 4WD message is displayed as failure to complete transfer case range shifts and/or noisy (clunking/ratcheting) transfer case range shifts. The technician may find DTC C140E stored (transfer case motor blocked).

    Reprogram the DTCM with the latest available software.

    About the Author

    Motor Age Staff

    Motor Age has been publishing technical content for professional automotive technicians since 1899. Our writers have decades of experience and scores of ASE certifications, and they continue to teach new generations of technicians via classrooms all around the globe, as well as through the books and training manuals they've authored. 

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