1985 s10 blazer tahoe. when i toggle the blinker handle, the brake lights come on and flash, while the blinker lights do nothing. when i put on the brake, no lights come on at all. all bulbs are new. hazards work, the brake lights flash, but arent the blinkers just supposed to flash? are the wires crossed? if so, where can i check the wires? and do the wires run along the interior or exterior of the vehicle? thanks for any help.