Steps to Inspect Ram Throttle Body
This bulletin applies to 2019 and 2020 Ram 1500, 3500 and 4500/5500 vehicles. The bulletin involves inspecting the Julian date on the throttle body and possibly replacing it.
Customers may experience a MIL illumination. The technician may find DTC P2100 set (electronic throttle control motor circuit/open – Bank 1). The customer may also note that the truck is in limp home mode.
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Inspect the throttle body for an “S1” or “S2”. If S2 is present, the correct throttle body is already installed. If S1 is present, inspect the Julian date.
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If the four digit stamped Julian date on the front of the throttle body is on or between 2419-2549, proceed to the next step. If not, the correct throttle body is already installed.
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Inspect for a green dot near the barcode on the throttle body housing. If a green dot is present, the bulletin is completed. If not, replace the throttle body and seal, and clear DTCs.
About the Author
Information courtesy of Mitchell 1
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike Mavrigian
Motor Age Editor
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.