Steps to Inspect Ram Throttle Body

Dec. 7, 2020

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. 

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.

  1. 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. 

  2. 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.

  3. 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.

About the Author

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.

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