Where Does the Turn Signal Sound Come From?

[StGia]

Turn signal sounds are produced by the relay switch engaging. Here is relevant information about turn signals: Function of turn signals: Although turn signals are electronically controlled devices, they still use audio simulations to mimic the clicking sound of relays. They are activated when vehicles turn to alert drivers that the turn signals are flashing, serving as crucial indicator lights that notify surrounding vehicles and pedestrians. Types of turn signals: Turn signals utilize flashers to achieve blinking lights. They can mainly be categorized into three types: resistance wire type, capacitor type, and electronic type. The resistance wire type can be further divided into thermal wire type (electrothermal) and vane type (spring-loaded). The electronic type can also be subdivided into hybrid type (relays with contacts combined with electronic components) and fully electronic type (relay-free).