What Problems Will Occur If a Car Relay Fails?

[OKatherine]

Symptoms of a damaged car relay include the starter not turning, weak starter operation, and starter freewheeling. Below are specific details about car relays: 1. Function: The basic role of a car relay is to act as an "automatic switch" that uses a small current to control the operation of a larger current. It serves functions such as automatic regulation, safety protection, circuit switching, and more in the electrical system. 2. Selection Based on Usage Environment: The usage environment mainly refers to temperature (maximum and minimum), humidity (typically the maximum relative humidity at 40 degrees Celsius), low air pressure (can be ignored if used below 1000 meters altitude), vibration, and impact. Additionally, there are requirements for packaging methods, installation techniques, dimensions, and insulation. Due to differences in materials and structures, relays can withstand varying environmental mechanical conditions. Using a relay beyond the environmental mechanical conditions specified in the product standards may damage it. Therefore, relays should be selected based on the environmental mechanical conditions of the entire machine or higher-level conditions.