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Home >> GMC >> 2021 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 94 (Driver Assistance Systems) >> Diagnostic Information And Procedures >> DTC B1A01 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2020 GMC Terrain and 2020 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

For an overview of the component/system, refer to:Forward Collision Alert Description and Operation 

Component Description
B174W Frontview Camera - Windshield The video camera and the control module are a single serviceable component.
This camera delivers live video of what is in front of the vehicle. The video can be used for several functions, like lane departure warning, lane keep assist, road sign recognition and more.
The control module also reads various switches and sensors and makes their values available via serial data.
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