Circuit/System Description

For an overview of the component/system, refer to: Forward Collision Alert Description and Operation (UGN) , or Forward Collision Alert Description and Operation (except UGN) 

The B174W Frontview Camera Module - Windshield performs a self-test to verify if a critical malfunction exists within the system. During the power-up mode, the B174W Frontview Camera Module - Windshield checks for a valid calibration data set.