Obdaryn

C0055Steering Wheel Position Sensor Signal D

  • Generic OBD-II code · Chassis
  • Can trigger limp mode
How the car detects it
Covers signal D of the steering wheel position sensor, the fourth multi-track channel that completes the set with signals A, B and C. The ESC module reconstructs absolute steering angle from all channels and uses their agreement to detect a single faulty track; this code is set when channel D is out of range, open, shorted or inconsistent with the others. Ford documents C0055 together with C0052, C0053 and C0054 on 2020-2021 Police Interceptor Utility vehicles, where the codes store in the steering module if the police-package steering-wheel accessory outputs are left unwired. A fault disables stability control and sets the ABS/ESC warning lamp while base braking remains. The entry follows the SAE J2012 generic definition and multi-track steering-angle sensor design.
What you may notice
  • Stability control disabled
  • ABS/ESC warning lamp on
  • Implausible steering angle reading
Likely causes
  • LikelySignal D open or unconnected
  • PossibleSteering angle sensor channel D failed
  • RareHarness or connector fault
Repair
Medium · Usually a job for a workshop.Typical cost: €80 – €700
Related codes

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