Network, generic

U0574 Invalid Data Received From Lighting Driver Control Module A

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

Lighting driver control modules switch and dim individual LEDs or LED segments in modern headlamps. Lincoln's 2025 Navigator has four of them, labelled A to D, and an over-the-air release (25.10.08) for all four adjusted headlamp colour and brightness at start-up; NHTSA's summary adds an intermittent resistance fault that dropped the lamps to their lowest setting. U0574 is set when a receiver gets module A's frames but rejects the data. No maker publishes U0574 itself or partner U0273. LED matrix drivers such as TI's TPS92662 report open or shorted LEDs over a serial line, so a corrupt status message can stop adaptive light although the lamp still works. U0542 concerns headlamp control module A. No MIL.

Likely causes

Lighting driver module software needing an update (Lincoln remedy over the air)
Moisture or poor contact at the headlamp connector
Lighting driver control module A internally faulty (often only with the headlamp)

Symptoms

  • Adaptive or glare-free high beam unavailable
  • Headlamp colour or brightness wrong, lamps at reduced level

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 a

Related codes

U0273U0575U0542

References: static.nhtsa.gov, ti.com.