New Painless Harness NO turn Signal Blinkers

[1971_402]

Hey everybody I have 1972 C10 with a new painless harness that I just installed. Iam having trouble finding out why my turn signals wont blink. I have power going to the switch and out to the light with 12v at the light. brake switch works stop lights come and headlights turn on and so does the turn signal lights but they wont blink it just stays on. oh and brake light do come on when the pedal is pressed. and I have 2 ground leads on the frame to bed, 2 ground leads on the frame to cab, and 2 ground leads frame to core support. and I have a ididit steering column and running standard type filiment bulbs no LED's. and checked all fuses all ok.. any help would be appricated.. thanks again