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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Electrical >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> DTC B124F: Universal Serial Bus (USB) Programming >> Circuit/System Description

Circuit/System Description

The instrument cluster can communicate with other devices on a Media Oriented Systems Transport (MOST) bus. Some of the other devices may be connected to a USB port. This allows programming of the instrument cluster using a USB device via the MOST bus. Software checks are performed to ensure the internal MOST circuitry is operating properly.

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