Ford F-250 SD 2017–2019 — technical service bulletin
Bulletin SSM 47981 · NHTSA communication 10160886 · issued May 14, 2019
Technical service bulletin
communication type
Electrical System
component
2017–2019
model years
12
vehicle entries
Official summary
Some 2017-2019 F-Super Duty vehicles where the pickup box has been removed due to a modification, may exhibit various symptoms due to loss of communication on the medium speed controller area network (MS-CAN). Additional symptoms such as climate control system inoperative, front control interface module (FCIM) controls inoperative and/or the headlamps remaining on at all times may also be present. This may be due to C408 being disconnected and interrupting the MS-CAN network when the pickup box was removed. To repair, install jumper harness part #HC3Z-13A409-J into C408, located at the RH rear
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.