Directional problem

hey watsup , ive got a 90 integra gs , the directionals in the corner light do not work … but if i put a voltometer on it it blinks in the gauge and when the bulbs in there it doesnt blink , the bulb is fine it works in parking light location , the bumper light blink perfectly as do the tails but the turn signals dont i cant figure it out if theres volts going through it shouldnt it blink ? lol any info would be great thanks