Chassis, generic

C0055 Steering Wheel Position Sensor Signal D

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

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.

Likely causes

Signal D open or unconnected
Steering angle sensor channel D failed
Harness or connector fault

Symptoms

  • Stability control disabled
  • ABS/ESC warning lamp on
  • Implausible steering angle reading

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€80–700
Time0.5–2.5 h

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

Parts involved

steering angle sensor

Related codes

C0052C0053C0054

References: static.nhtsa.gov, bosch-mobility.com.