Code Definition

U2011 — Module Transmitted Invalid Data (Non SCP)

System: Network Communication  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About U2011

U2011 is a generic (obd-ii standard) network communication diagnostic trouble code. It belongs to the U-prefix family of codes, which covers inter-module network communication (CAN, LIN, FlexRay, or similar) faults.

Scanning & clearing: Network (U) codes report communication faults between modules. When diagnosing U-codes, checking the vehicle's CAN bus integrity, supply/ground at each module, and reading all modules for related faults is usually the first step.

Because U2011 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

This DTC is stored when a module on one of the vehicle communication networks, not the Standard Corporate Protocol or SCP bus, transmits data that a receiving module judges to be invalid, corrupted, or outside expected parameters. Unlike a no response fault, the transmitting module is communicating, but the content of its messages fails the validation or consistency checks the receiving module applies. This can result from a genuine sensor or internal fault in the sending module, from software or coding errors, or from electrical disturbances corrupting the data on the bus. Symptoms depend on ...

Join TaT to view the complete code information and diagnostic details.

Quick Facts