Issue With Ram ProMaster Turn Signal
Customers with 2014-2017 Ram ProMaster vehicles built on or before May 24, 2017, and equipped with wide power heated mirrors, manual fold-away mirrors or power-folding/heated mirrors may experience external lighting failure indicator light(s) along with accelerated blinking during turn signal operation.
The inner turn signal amber lens may be distorted from excessive heat. DTCs B1008-18 (right turn lamp undercurrent) and/or B1007-18 (left turn lamp undercurrent) may be stored, as well. Using a scan tool, check for non-related DTCs and address as needed before proceeding.
Remove both outside mirror turn signal bulbs. Remove the two screws that hold the turn signal housing/lens to the mirror assembly and discard the old housing. Note that the new bulbs will be an amber color and the new housing will not have an inner amber lens/filter. Install the new housings and bulbs.
The new parts are as follows:
Amber turn signal bulbs.......... 68374917AA
Right turn signal housing........ 68374918AA
Left turn signal housing...........6837491AA
About the Author
Information courtesy of Mitchell 1
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike Mavrigian
Motor Age Editor
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.