Model #FM3666 Mechanical Headlight Flasher (1.2 FPS) REV.
The FM3666 headlight flasher is designed to work on both two and four headlight systems on any vehicle with a 12 VDC negative ground system. If the vehicle you are installing this unit on has Daytime Running Lights (DRL’s), you must order Model #FM3669C. Please use Model #FM3669 if you would like a headlight flasher which also adds a DRL function to your vehicle. A properly installed FM3666 headlight flasher will flash the vehicles high beam lights (up to 70 watts per side) in an alternating pattern at 1.
Low Beams Low Beam High Beams Cut the wire from the highbeam switch and isolate the two highbeam headlights from one another HighbeamLowbeam Switch High Beams GOOD CHASSIS GROUND Headlight On/Off Switch High Beams + Low Beam BATTERY GOOD CHASSIS GROUND Figure 1 ORANGE Low Beams Low Beam High Beams High Beams ON GOOD CHASSIS GROUND BATTERY RED CONNECT TO +12 VDC + BLACK FUSED LEAD 15 AMP FUSE RED High Beams Low Beam GOOD CHASSIS GROUND Figure 2 REV.
ONE YEAR LIMITED WARRANTY The manufacturer warrants each new product, under normal use, against factory defects in material and workmanship for one year after the date of purchase. The owner will be responsible for returning to the Service Center any defective item(s) with the transportation costs prepaid. The manufacturer will, without charge, repair or replace at its option, products, or part(s), which its inspection determines to be defective.
