Installation of Sequential Taillights for Mustang

Installation of Sequential Taillights for Mustang - Locate fuse box, under driver side dash area. Just behind fuse box is the flasher relay (yellow rectangular box). Replace original equipment with modified flasher from kit
  1. Open Trunk.
  2. Remove four (4) "Christmas Tree" pushpins that hold plastic trim panel at striker plate and remove plastic trim.
  3. Remove two (2) plastic speed nuts (phillips head) one per side, directly behind each taillight in trunk. Remove trunk panel.
  4. Remove four (4) nuts per taillight housing (11 mm).
  5. Unplug wiring harness (one connection per light).
  6. Push grommets (one per light) with wiring harness through the sheet metal from inside to outside of trunk.
  7. Remove taillight housings from vehicle.
  8. With taillights on bench, remove bulbs and sockets from lights and remove harnesses completely.
  9. Install bulbs in modified harnesses (make sure to wipe bulbs with isopropyl alcohol to avoid bulb burnout from hand grease).
  10. Connect backup light bulbs and sockets to the lamp bodies first, then connect bulbs/sockets marked 1, then 2, and then J.
  11. Wipe area with alcohol then mount flashers to taillight housings.
  12. Set lamps into vehicle and run harnesses back into original positions; reconnect lamps to body harness. (Place lamps in vehicle temporarily - make sure they will not FALL OUT).
  13. Locate fuse box, under driver side dash area. Just behind fuse box is the flasher relay (yellow rectangular box). Replace original equipment with modified flasher from kit.
  14. Test turn signals. If flashing in wrong direction, correct it by rearranging the bulbs/sockets in the lamp bodies.
  15. If correct, re-attach the lamp bodies to the sheet metal and re-install the trim.


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