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U0575 Invalid Data Received From Lighting Driver Control Module B

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

U0575 flags implausible data from lighting driver control module B. Matrix headlamps split the high beam into many LEDs that a control unit switches individually; Audi introduced the first such glare-free system on the 2013 A8 with 25 segments per lamp. With several driver modules on board, the controller in charge expects regular and consistent status from each of them. Lincoln's 2025 Navigator names four headlamp driver modules, lettered A to D, and updated them over the air in October 2025; where each letter sits is not stated. Neither U0575 nor partner U0274 is documented by a manufacturer. Glare-free high beam or light animations may be withdrawn, while basic low and high beam should remain. No MIL.

Likely causes

Software of driver module B outdated or inconsistent with the other modules
Defective LED segment producing fault reports the receiver cannot match
Lighting driver control module B internally faulty

Symptoms

  • Glare-free high beam switched off with a lighting message
  • Individual LED segments dark or flickering

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–1,800
Time0.3–3 h

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

Parts involved

lighting driver module b

Related codes

U0274U0574U0576

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