U0261Lost Communication With Seat Control Switch Module B
- Generic OBD-II code · Network
- How the car detects it
- Seat control switch module B is a further switch unit with its own electronics, serving another seat or seat row; which position the letter stands for is not published. Lincoln bulletins show how closely switch and seat module interact: power seats in the second row of the 2025 Navigator did not slide when the switch was pressed, the rear seat modules SCMK/SCML held B167F:11, and the cure was to run their configuration routines in the scan tool (SSM 54226); on 2022 Aviators missing lumbar settings on the screen were traced to seat module software or a wrong seat switch part level (SSM 51056). So a switch complaint may be a seat module setup issue. No manufacturer documents U0261 publicly. Usually the seat module notices when switch B stops reporting, and that seat then ignores its keys. Switch A is U0260, C and D are U0271 and U0272.
- What you may notice
- Passenger or rear seat does not move with its switch
- Seat settings missing in the center display
- Likely causes
- LikelySeat module configuration or software not matching the switch (Lincoln SCMK/SCML)
- PossibleLoose connector or chafed wire under the seat or in the trim of the second switch
- PossibleWrong part level of the seat switch after production or replacement
- RareInternal failure of switch module B
- Repair
- Easy · Often possible to do yourself.Typical cost: €0 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.