To be certain:
1. Consult your owner's manual: This is the best resource for the exact location and identification of your flasher relay or module.
2. Look for a fuse box diagram: The cover of the fuse box usually has a diagram showing the location of the fuses and relays. Look for a symbol that represents a flashing light or turn signals.
3. Use a multimeter: If you can't find it visually, using a multimeter can help you trace the circuit and find the component responsible for the flashing signal. However, this method requires some electrical knowledge.
If you're unsure about working with car electrical systems, it's best to take your car to a qualified mechanic. Improperly working with car electrical systems can be dangerous.