When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Have any ideas of what this could be? It blinks all the time was on the truck when I got it. Has a button in the bottom of it. This is on a 2009 super duty 250 and the 6.4 L if that matters.
It's an aftermarket security system that interrupts the start circuit. It's probably been bypassed since I don't see the chip inserted in the socket just to the right of it.
It looks similar to an anti-theft/security system some dealerships install on there entire inventory. Similar to glass engraving. Then they try to sell it to you when you buy the vehicle. If you deny the option they usually leave it installed but permanently disable it.
Like the window engraving, its also terminate, they just don't register the engraved number code.