U056AInvalid Data Received From Image Processing Sensor E
- Generic OBD-II code · Network
- How the car detects it
- U056A is the invalid-data code for image processing sensor E: the module still talks, but the receiver rejects what it says. No brand documents U056A itself. GM lists the partner U0269 among codes held by the active safety controller of many 2013–2018 models with driver-assist packages, among them Escalade, ATS, CT6, Malibu, Volt and Acadia. These sensors share a separate object detection bus, wired to pins 3 and 11 of the diagnostic connector. GM warned that a worn scan-tool interface or cable on exactly those pins produces false U-codes and blocks contact with the radars and front camera; a loopback adapter or a known-good vehicle proves the tool. Rule out the tester before chasing sensor E. No MIL.
- What you may notice
- Object detection or Service Active Safety message
- Scan tool cannot reach radars and front camera
- Code returns only when one particular tester is connected
- Likely causes
- PossibleFaulty diagnostic interface or cable on the object detection bus pins (false codes)
- PossibleFault on the dedicated object detection bus wiring
- RareSensor E software fault or internal defect
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.