OK so if I turn right, the blinker works fine, but if i turn left, the dashboard clicks but the arrow doesnt light up, nor do my blinkers go on. Someone told me this is the realy going bad.
Where is it? How do I recognize it?
And how hard is it to change?

 

Check all your bulbs first. Then the relay, last the switch. Replace all the bulbs if you haven't lately. Eliminates that possibility. Mine was the front right turn bulb (wrong bulb 2257 instead of 1157) and the left outer marker bulb. Signals work perfect now.