SSM 50347

Service Bulletin Details

Public Details for: SSM 50347

Some 20182021 expedition/navigator vehicles may exhibit inoperative reverse lamps with dtc B1277 stored in the body control module (bcm). The vehicle may also exhibit the auto dimming rear view mirror becoming dark as soon as the key is tu


- 2021 - 2020 - 2019 - 2018 -

Models from 2021
2021 FORD EXPEDITION
2021 LINCOLN NAVIGATOR
Models from 2020
2020 FORD EXPEDITION
2020 LINCOLN NAVIGATOR
Models from 2019
2019 FORD EXPEDITION
2019 LINCOLN NAVIGATOR
Models from 2018
2018 FORD EXPEDITION
2018 LINCOLN NAVIGATOR 
SSM 50347 - 2018–2021 Expedition/Navigator – Reverse Lamps Are
Inoperative After Windshield Replacement With Diagnostic Trouble Code
(DTC) B1277
Some 2018–2021 Expedition/Navigator vehicles may exhibit inoperative reverse lamps with DTC
B1277 stored in the body control module (BCM). The vehicle may also exhibit the auto dimming rear
view mirror becoming dark as soon as the key is turned on or is inoperative. This may be due to
incorrect wiring of an aftermarket 5 pin jumper connector from a non-Ford windshield supplier that is
causing a short to ground. To correct this condition, inspect if the windshield was recently replaced
and verify the circuits in the 5 pin jumper connector located between connector C9440 and C9224
are routed in the correct pin location and adjust as necessary. Refer to the Wiring Diagram, Cell 12410.
APPLICABLE VEHICLES
2018 - 2021 TRUCK: B8 U553N EXPEDITION
2018 - 2021 TRUCK: B9 U554N NAVIGATOR

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