What is the reason for the sudden automatic driving light failure warning in a Volkswagen car?
1 Answers
Volkswagen automatic driving light failure may be due to settings or a blown fuse. It could also be a wiring harness issue, so it is recommended that the owner visit a 4S shop for a related inspection. Reasons for automatic driving light failure: 1. Blown fuse for the daytime running lights: If the fuse is blown, usually both sides will not light up. If only one side is not working, it is likely not a fuse issue. 2. Wiring harness fault: Check the wiring harness between the headlight control module and the daytime running lights. 3. Daytime running light bulb problem: If there is an issue with the filament quality of the bulb, its resistance will increase as the temperature rises, leading to a decrease in working current and causing the daytime running lights to turn off.