Network, generic

U056C Invalid Data Received From Image Processing Sensor G

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

Image processing sensor G is sending frames that the receiving module refuses. Neither U056C nor a camera position for G is documented by a manufacturer. Its partner U026B, however, is on GM's list for 2015–2020 Escalades whose front fascia harness rubbed through at the right bumper bar: blown fuses F10DL, F19DR, F43UA or F46DR, dead front park, turn, daytime and cornering lamps, and messages for surround vision, park assist and adaptive cruise. Surround-view systems, pioneered by Infiniti with the EX35 of model year 2008 and sold by Chevrolet as Surround Vision, combine cameras at the front, rear and sides into a top-down picture. A sensor delivering bad data leaves a gap in that view or disables it. No MIL.

Likely causes

Bumper or fascia harness rubbed through, shorting circuits and fuses
Camera connector disturbed or misassembled after body repair
Image processing sensor G internally faulty

Symptoms

  • Surround view shows a black segment or is unavailable
  • Blown fuses and front lamps out at the same time

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€60–1,100
Time0.5–4 h

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

Parts involved

image processing sensor g

Related codes

U026BU056BU056D

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