Obdaryn

U0244Lost Communication With Running Board Control Module A

  • Generic OBD-II code · Network
How the car detects it
Power running boards fold out when a door opens and stow when doors close or the vehicle starts moving; Ford's running board control module (RBM) runs the motors. Ford documents U0244 directly: on 2027 Expedition and Navigator the boards intermittently refuse to move and the cluster shows a running board fault message; the driver seat module (DSM) holds C1008:15 or C1009:15 while other modules record U0208 and U0244. The cause is DSM software, and the DSM may not even answer a network test until the seat switch is pressed. Five minutes parked with doors shut restores operation for a while, and an over-the-air update was announced (SSM 55168). Older RBMs fall back from Auto to Off after a low-voltage event (SSM 50154). Boards may stay out or in. B is U0251, data errors from A U0545.
What you may notice
  • Power running board fault message in the cluster
  • Boards stay extended or retracted
  • Seat heating, cooling or memory affected at the same time (Ford 2027)
Likely causes
  • LikelySoftware fault in the module hosting the running board function (Ford 2027: driver seat module)
  • PossibleLow or fully discharged battery that left the module offline
  • PossibleDamaged or corroded wiring and connectors exposed under the body
  • RareRunning board module internally faulty
Repair
Medium · Usually a job for a workshop.Typical cost: €0 – €900
Related codes

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.