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Home >> Cadillac >> 2009 >> Escalade EXT >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 244 (Cellular Systems, Entertainment Systems & Navigation Systems) >> Diagnostic Information and Procedures >> DTC B1289 >> Circuit/System Description
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Circuit/System Description

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The radio can control the video display brightness on vehicles equipped with rear seat entertainment (RSE) video. The radio varies a pulse with modulated (PWM) signal to the rear entertainment video screen to command the screen brightness to the desired level.

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