How to Solve the Problem of Hazard Lights Flashing Non-stop?
2 Answers
The solution to hazard lights flashing non-stop is: directly remove the hazard lights fuse, at which point the hazard lights will stop flashing continuously, and it will not affect the use of the car lock and turn signals. If the hazard lights keep flashing and cannot be turned off, it is most likely due to a problem with the control box. It is necessary to check whether the hazard light relay is functioning properly. Use a multimeter to test the output line of the hazard light relay to see if there is a 12v output. If there is intermittent output variation, it indicates normal operation. If there is no output or a constant 12v output, it means the hazard light relay is damaged and needs to be replaced with a new one. It could also be due to abnormal wiring issues, in which case professional personnel should be consulted for troubleshooting.
Last time I encountered a situation where the hazard lights couldn't be turned off, I started troubleshooting from the simplest possibilities. The hazard light switch button getting stuck is the most common cause, especially prone to dust accumulation and jamming after prolonged use. I solved it by wiping the button crevices with alcohol swabs. If that didn't work, check the fuse box - look for the 15A fuse labeled 'emergency lights' in the black box under the lower left corner of the driver's seat, and pull it out to see if it's blown. If still not resolved, it might be a fault in the body control module, particularly prone to activation after water exposure causing short circuits during rainy weather. There's also a less common scenario where the anti-theft system misfires - locking and unlocking the car with the key can reset the system. If you can't fix it yourself, head to the repair shop promptly, as continuously running hazard lights can drain the battery and interfere with other drivers' judgment.
