Network, generic

U056B Invalid Data Received From Image Processing Sensor F

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

At GM, the partner of U056B – U026A – belongs to the front camera module B174W. A 2023 GM note for 2022–2023 Cadillac XT5 and XT6, Chevrolet Equinox and GMC Acadia and Terrain blames U026A plus the front-camera warning on terminals in that camera that were pushed back or absent, which then has to be replaced. On 2016 Escalade, Malibu, Silverado, Suburban, Tahoe, Sierra and Yukon, U026A could appear in the cluster or body module because of camera software, and GM advised against replacing parts. Sensor F is thus a forward camera on these GM platforms, whereas the 2020 CT4 and CT5 file their windshield camera under letter A. U056B itself is in no public bulletin; lane and collision functions are likely off while it is set. No MIL.

Likely causes

Pushed-in or missing terminals in the front camera connector (GM 2022–2023)
Front camera software fault, fixed by reprogramming
Front camera module internally faulty

Symptoms

  • Service Front Camera message
  • Lane keeping, lane departure or forward collision alert unavailable

Repair estimate

DifficultyHardWorkshop job
Parts and labour€80–1,400
Time0.5–2.5 h

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

Parts involved

image processing sensor f

Related codes

U026AU0566U056AU056C

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.