Network, generic

U0579 Invalid Data Received From Seat Module L

Check engine lightUsually off

EmissionsNot relevant

Drive cycleNot required

Limp modeNo

Seat control module L (SCML) is Ford's right-hand counterpart to SCMK: on the 2025 Lincoln Navigator it runs the passenger-side power seat of the second row. Ford pushed SCML-25.5.5.3 over the air so that this seat keeps its memory settings consistently; the release note page itself is headed with the PCM by mistake but names seat control module L in the text. In SSM 54226, B167F:11 could sit in SCML when the second-row switch failed to move the seat, and the SCML configuration app was the fix. U0579 means frames from SCML reach other modules with implausible content; U0278 stands for missing frames, U0578 for the left seat module. No bulletin cites U0579. The right second-row seat may stop moving or lose its stored positions.

Likely causes

Seat module L software fault (fixed by an over-the-air update)

Seat module L configuration missing or wrong for the seat equipment

Seat module L internally faulty

Symptoms

Right second-row power seat does not move with its switch
Stored seat positions on the passenger side lost

Repair estimate

DifficultyMediumWorkshop job

Parts and labour€0–500

Time0.3–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

seat control module l

Related codes

U0278 U0578

References: static.nhtsa.gov, static.nhtsa.gov.