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Message: <blockquote data-quote="Mikloangelo" data-source="post: 29451" data-attributes="member: 13767"><p>What does the ambient light sensor actually do, other than turn on DRL? It appears my truck had the DRL delete and has an extra turn signal in its place. I ask the question because when I replaced my dash with the TEMU dash its hole for the ambient light sensor is larger than the original. Which I found that the 03+ model came with a larger two wire sensor. I bought one to install and it fits fine and the wiring matches up. But I cant tell what exactly the sensor is meant to do. I have my old sensor, a new sensor and an 03+ sensor And I cant tell any difference.</p></blockquote><p></p>