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Home >> Lexus >> 2013 >> IS 250C Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation System (Diagnostic Codes & Circuit Tests) >> Navigation System >> Circuit Tests >> Display does not Dim when Light Control Switch is Turned ON >> Description

Display does not Dim when Light Control Switch is Turned ON: Description

When the navigation system is activated with the light control switch in the tail or head position, before AVC-LAN communication is established, the multi-display assembly dims the display according to the illumination signal received via a direct line.

After AVC-LAN communication is established, the multi-display assembly dims the display according to a dimmer signal sent via AVC-LAN communication.

The multimedia module receiver assembly switches between the daytime screen and night screen on the multi-display assembly according to the illumination signal input.