SSM 46455

Service Bulletin Details

Public Details for: SSM 46455

Some 2017 f-super duty vehicles equipped with electronic shift on the fly (esof) four wheel drive may exhibit a 4x4 indicator illuminated with dtc P1839 in the tccm. This may be caused by a backed out or loose pin for circuit ccf07 bn-gn at


- 2017 -

Models from 2017
2017 FORD F-250 SD
2017 FORD F-350 SD
2017 FORD F-450 SD
2017 FORD F-550 SD
2017 FORD F-650 SD
2017 FORD F-750 SD 
SSM
46455
Some 2017 F-Super Duty vehicles equipped with electronic shift on the fly (ESOF) four wheel drive
may exhibit a 4x4 indicator illuminated with DTC P1839 in the TCCM. This may be caused by a
backed out or loose pin for circuit CCF07 BN-GN at C1010 which is located by the driver side
fender. Before attempting diagnosis or repairs, inspect pin 16 in connector C1010. If no concern is
found, refer to Workshop Manual (WSM), Section 308-07 for normal diagnostics.

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