Lighting Fully Open Module for GM/ 6 High Mod Fog Low Beams High Beams Compatible with 2003-2007 Chevy Silverado GMC Sierra 1500 2500 3500, Cadillac Escalade,Yukon, Tahoe, Avalanche

【Function】Simply install the GM All Lights On Module to allow your high-beams, low-beams and fog lamps to simultaneously illuminate the road ahead. Once installed the GM Lighting Fully Open Module will turn on the high-beams, low beams and fog lamps when you turn on your high-beams. When the high-beams are NOT turned on your low-beams and fog lights will function normally. Add the supplied spade terminal to provide a signal ground when the high-beams are turned on. This will allow you to control an accessory relay with the high-beam switch.. 【High Performance 】This mod allows your high beams, low beams, fog lamps and day time running light to be on simultaneously when turn on high beams. Low-beams fog lights and DRL will function normally, when the high-beams are not turned on. 【High Quality】Made of FR-4 PCB Materials, solid construction, durable and much safer to use. 【Easy Installation】Find your fuse box, pull out 4 relays labeled Fog Lp, Hdlp-Low,Hdlp-Hi, Drl. Lay down the circuit board and reinstall those relays back into original location. No modification to existing wiring. 【Compatible】The module compatible with 2003-2007 chevy silverado; 2003-2007 gmc sierra 1500, 2500, 3500, 2004-2006 cadillac escalade, 2003-2006 escalade ext; 2003-2007 GMT 800 trucks; 2004-2006 yukon; 2004-2006 tahoe; 2003-2006 avalanche 1500.