Network, generic

U0550 Invalid Data Received From Side Obstacle Detection Control Module D

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

Module D is the fourth radar of a side obstacle system, in Ford terms SODCMD alongside SODL, SODR and SODCMC. Which corner it serves depends on the vehicle and is not stated in the public Ford bulletins. U0550 has no published manufacturer description; a module receiving data from unit D sets it when that data proves invalid, for example a signal outside its range or a sequence error. Because these radars sit in bumper corners, impact damage, a bent bracket or water in the plug often come before network faults, and after a bumper repair the replacement module must be given the vehicle's configuration (Ford SSM 51903). The driver notices side assistance or cross traffic alerts disabled, not a drivability problem. U024F is total loss; module C is U054F.

Likely causes

Radar D or its bracket damaged by a bumper impact
Water ingress or corrosion at the module D connector
Replacement module D without vehicle configuration

Symptoms

  • Side assistance or cross traffic alert switched off
  • Warning message about a blocked or faulty sensor

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–900
Time0.3–3 h

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

Parts involved

side obstacle detection module d

Related codes

U024FU054FU024E

References: static.nhtsa.gov, en.wikipedia.org.