WenmarOpen by Wenmar Pro

P1704 on the 2017 Mercedes-Benz Sprinter

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.

Bulletins for this model year that name P1704
LI07 04-N-0672562018-09-04. Service bulletin. Engine Diagnosis Indicator Lamp Illuminated and P170400 Fault Code Current and/or Stored in CDI Control Unit

1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.