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Home >> GMC >> 2019 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 677 (Driver Monitoring System) >> Diagnostic Information and Procedures >> DTC B1BEC >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

The Driver Monitoring System Control Module performs fault detection on itself and the indicators attached to it.

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