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Home >> Chevrolet >> 2016 >> Suburban 3500 HD LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 91 (Object Detection System And Pedestrian Protection System) >> Diagnostic Information and Procedures >> Video Processing Control Module Malfunction >> Circuit/System Description
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Circuit/System Description

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 GMC Yukon XL, 2015 GMC Yukon, 2015 Chevrolet Tahoe, 2015 Chevrolet Suburban, and 2015 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.

When the engine is running, and the transmission is placed into R, a vehicle in reverse motion message is sent via serial data to the video processing control module indicating that camera operation is requested. When the engine is running, and the transmission is placed into D, a vehicle in forward motion message is sent via serial data to the video processing control module. The cameras send video information to the video processing control module through a video signal + and a video signal - circuit. A grounded shielding also wraps the video signal circuits to reduce electronic interference which may degrade the video signal and cause a distorted or otherwise degraded image. The signals from the cameras are combined and sent to the radio or human machine interface module.