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Home >> GMC >> 2024 >> Acadia AT4 >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel, Displays And Gauges >> Diagnostic Information and Procedures >> DTC U223B: >> Circuit / System Description

Circuit / System Description

The A11 Radio interfaces with the P53 Driver Information Display / A22 Radio Control / A105 Instrument Panel Multifunction Human - Machine Interface Control Module using LVDS via a USB cable. The A11 Radio monitors the LVDS signal for circuit faults and If a communication issue is detected, the K9 Body Control Module sets a DTC for the P53 Driver Information Display / A22 Radio Control / A105 Instrument Panel Multifunction Human - Machine Interface Control Module as needed.