Code Definition

U2473 (20) — Unexpected Vehicle Speed

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

About U2473

U2473 is a generic (obd-ii standard) network communication diagnostic trouble code recorded for Ford vehicles. 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 U2473 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

DTC U2473 is a manufacturer specific network code set when a control module receives vehicle speed data over the CAN bus that is implausible or inconsistent with other speed related inputs such as the wheel speed sensors, transmission output speed, or engine operating conditions. The receiving module runs plausibility checks and logs this fault when the reported vehicle speed does not align with expected values or changes unexpectedly, indicating an invalid data condition rather than a total communication failure. Common origins are a faulty wheel speed input, an ABS or speed source module fau...

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