the flasher unit, the bulbs, poor grounding, key turned off ..... yer wiring job? need to get a wiring diagram [a shop manual is a great investment] and trace from where the circuit gets power until the power isn't gettin thru anymore - everything else electrical work? do the front parking lights work? did the signals works before you replaced the harness?

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics