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Home >> Cadillac >> 2024 >> LYRIQ Tech, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Data Communications - Diagnostic Information And Procedures (1 Of 5) >> Diagnostic Information and Procedures >> DTC B1A1F (K73 Telematic Control Module) >> Circuit/System Description

Circuit/System Description

The Ethernet bus 4 is used to communicate between A11 Radio and A11 Radio or K56 Serial Data Gateway Module depending on the Radio type or vehicle configuration.

This Ethernet harness consists of a single twisted copper pair of wires (circuits 7210 & 7211) from point to point.