Code Definition

U2013 — Compass Module is not Responding

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

About U2013

U2013 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 U2013 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 a host module, usually the instrument cluster or the body control module, when it stops receiving communication from the compass module over the control network, typically a LIN bus or low speed CAN. The compass module, which is frequently built into the interior rear view mirror, provides heading direction to the display and sometimes feeds other features. The code sets when the compass module fails to transmit its expected data or acknowledgements within a defined time. The driver may notice the compass heading missing, blank, or frozen on the display, while the rest of...

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