my dad just bought a 74 comet. all the lights work but the turn signals. the hazards flash but the dash indicators do not blink with them. the signals do not work at all. i checked the flasher for the blinkers and it is good. all fuses are good. i ran a jumper to the single blue wire on the flasher and when the left or right blinker is selected it will light up outside the car but wont blink so i think the t/s switch is good. and also the dash indicator lights do not light up with the blinker. im stumped. wondering what could be the cause of this. the grounds all look good too. any chance the circuit board is bad in the dash and if so can i bypass this? sorry for the long post and thanks in advance.