Ford F-250 SD 2017 — technical service bulletin
Bulletin SSM 46257 · NHTSA communication 10094617 · issued Dec 12, 2016
Technical service bulletin
communication type
Service Brakes
component
2017
model years
6
vehicle entries
Official summary
All 2017 f-super duty vehicles equipped with a factory trailer brake controller (tbc) utilize a trailer module (trm) which initiates the trailer charging system. For trailer charging to operate, the trm must detect a trailer is connected and a brake pedal input before charging will be present at the trailer connector. Adding the trailer battery charge relay and fuse into the battery junction box are not required to operate trailer charging with a trm. If testing of the trailer charging system is required without a trailer, refer to the updated diagnostics and system operation found in the onli
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.