Affected Component: ELECTRICAL SYSTEM

Date Published
SEP 26, 2018
NHTSA TSB #
10149776
TSB Document
Summary
Some 2018 F-150, Expedition, and Navigator vehicles may exhibit a battery draw resulting in a discharged battery. An electronic park brake (EPB) switch internal short may cause the anti-lock brake system (ABS) module to wake up resulting in controller area network (CAN) system wake up. If the draw cannot be duplicated with fuse F70 removed, suspect the EPB switch.