Here is a way to check by yourself if the signal light is not working

step1: check if the flash relay is working, you can hear tik tok sound when you switch on turn signal, if you can not hear any sound from flash relay then you need to change a new flash relay

Step 2: If flash relay is working properly, then check the turn signal switch, if the turn signal is showing on panel board when you switch left or right, then switch is working, signal light bulb needs to be changed, otherwise switch is broken.