C1743 on the 2019 Hyundai Santa Fe
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.
| 19-BE-008H | 2019-07-01. Service bulletin. This bulletin provides information for replacement of the Blind-Spot Collision Warning (BCW) module. Whenever the left or right side BCW module is being replaced, it is required to perform the variant coding procedure. If the variant coding procedure is not performed, a DTC C1743 (S/W mismatch) will be triggered. |
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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.