Will the car turn signal short circuit after water ingress?
2 Answers
Car turn signals will short circuit after water ingress. Here is an introduction to related knowledge about car lights: 1. Function: Car lights are various traffic lights installed on vehicles to ensure safe driving, divided into two categories: lighting lights and signal lights. 2. Classification: Headlights, fog lights, reverse lights, license plate lights, dome lights, instrument panel lights, and trunk lights. 3. Precautions: Checking car lights is one of the simpler steps in all new car inspection precautions. However, since the installation of car lights is prone to issues during the overall vehicle assembly process, this step should also be taken seriously during inspection.
After the last heavy rain, my turn signal got water inside, with droplets all over the lens cover, and it made a sizzling sound when flashing. The internal wiring of the turn signal has waterproof design, but excessive water can indeed cause a short circuit. For example, if the bulb socket connector is submerged in water, the positive and negative poles may connect through the water, leading to a short. In such cases, the turn signal may flicker or even blow the fuse directly. Once, a short circuit burned out my turn signal relay, causing the entire turn signal system to fail. Now, whenever water gets in, I immediately remove the lens cover to drain the water and use a hairdryer to dry it. If the lens cover is cracked, I replace it outright—never risk using it as is, as a short circuit could cause the turn signals to fail, which is too dangerous.
