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B2731 on the 2003 Lincoln LS

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 B2731
0404022005-04-08. Service bulletin. CLIMATE CONTROLLED SEATS TURNING OFF SHORTLY AFTER INITIALIZATION - DIAGNOSTIC TROUBLE CODES B2729, B2730, B2731. *TT
031332003-10-29. Service bulletin. ONE OR BOTH CLIMATE CONTROLLED SEATS TURNING OFF SHORTLY AFTER INITIALIZATION WITH DIAGNOSTIC TROUBLE CODE B2729 (CUSHION OVER-TEMP DETECTED) PRESENT IN THE CLIMATE CONTROLLED SEAT MODULE (CCSM). DIAGNOSTIC TROUBLE CODE B2731 (DIFFERENTIAL TEMPERATURE FAULT) MAY OR MAY NOT BE PRESENT. *TT

2 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.