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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 88 (Displays And Gauges) >> Diagnostic Information and Procedures >> DTC B15BD (in Instrument Panel Cluster Control Module) >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

The Head-Up Display system uses the P16 Instrument Panel Cluster Control Module to formulate images and vehicle information. The P16 Instrument Panel Cluster Control Module interfaces with the P29 Head-Up Display via a LVDS Signal over a USB cable. The P16 Instrument Panel Cluster Control Module monitors the circuits of the USB cable for faults.

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