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Home >> Buick >> 2019 >> Envision Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Image Display Camera System) >> Diagnostic Information and Procedures >> DTC B399A >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2018 Buick Envision. However, it is still accessible from the selected car via links, so may be relevant.

The video processing control module performs fault detection on itself and the cameras attached to it.

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