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Registered
Join Date: Mar 2019
Location: Saarland, Germany
Posts: 1,259
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I'm not pretty sure, but I might remember that I read somewhere that the factory third brake lights is connected on one of the two brake lights in the tail lights. Please check out in the wiring diagrams for your car. It could be a contact problem or even a broken cable.
Check also with a multimeter the voltage is delivered to the socket, probably it's a contact problem within the socket.
Thomas
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1981 911 SC Coupé, platinum met. (former tin (zinc) metallic), Bilstein shocks, 915/61,930/16,WebCam20/21, Dansk 92.502SD,123ignition distributor with Permatune box as amplifier,Seine Systems Gate Shift Kit,Momo Prototipo. Want to get in touch with former owners of the car. Last registration in US was in 2013 in Lincolnshire/lL.
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