Code Definition

U0405 (00-28) — Received Invalid Data From Cruise Control Module

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

About U0405

U0405 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 U0405 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

The vehicle control modules communicate over the Controller Area Network (CAN) to exchange cruise control status and command data. DTC U0405 sets when one or more modules receive CAN messages from the Cruise Control Module that are outside expected parameters. A failure type byte of 00 with a 28 qualifier indicates a general invalid data condition where the values are implausible or inconsistent with vehicle operating conditions, rather than missing. This is logged when the cruise control module transmits corrupted, conflicting, or out of range data due to internal faults, power or ground inst...

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