Code Definition

U2007 — Audio Navigation Unit is Not Responding

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

About U2007

U2007 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 U2007 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 by the Audio Control Module or central infotainment controller when it stops receiving communication from the navigation unit over the multimedia network, which depending on the vehicle may be a MOST fibre optic ring, automotive Ethernet, or low speed CAN. The navigation unit provides mapping, route guidance, and often the position data shared with other systems, and it exchanges handshake and status messages with the infotainment master. The code sets when the nav unit does not respond within the expected time. The driver may find navigation unavailable, the map screen blan...

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