Code Definition

U2300 — Central Configuration

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

About U2300

U2300 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 U2300 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

Central Configuration refers to the block of parameters stored in the vehicle that defines which features and options it was actually built with, covering items such as engine and transmission variant, market and region settings, lighting configuration, immobiliser and key data, tyre size, and the presence of optional systems like cruise control, parking sensors, or climate control. On most platforms this data set is held in a master module, typically the body control module or the central gateway, and is mirrored or referenced by other modules on the network so they know how to behave. DTC U2...

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