Right front turn signal does not work. Replaced

Okay so you have changed the bulb and you are certain that the rplacement bulb was the correct one. Then you have the take the bulb out and put a multimeter on the socket contacts, turn it on and read the voltage. No voltage then you must check wires that lead to the socket. You of course are looking for a broken wire a short something like that. If there was voltage, its the bulb. Good luck