What is the reason for the continuous flashing of the hazard lights on the Mazda6?
2 Answers
Mazda6 hazard lights continuously flashing is most likely due to a problem with the control box. The relevant explanations are as follows: 1. Judgment: It is necessary to check whether the hazard light relay is functioning properly. Use a multimeter to directly measure the output line of the hazard light relay to see if there is a 12v output. If there is intermittent output variation, it is normal. If there is no output or a constant 12v output, it indicates that the hazard light relay is damaged. 2. Supplement: The cause of the problem may also be the anti-theft chip on the car key; the recognition system of the vehicle's computer for the anti-theft chip; or issues with some circuits connected to the vehicle's computer.
I've encountered this issue several times, mainly caused by a stuck hazard light switch, especially in certain model years of the Mazda6 where the switch design isn't smooth enough, allowing dust accumulation to jam it. Another common reason is abnormal activation of the anti-theft system, such as accidentally pressing the button on the key or a fault in the anti-theft module itself, causing the hazard lights to stay on as a warning. There could also be an issue with the control unit, like aging or poor contact in the body control module, which then can't regulate the flashing rhythm. Voltage instability can cause this too, such as when the battery is nearly dead or the alternator isn't performing well, leading to erratic flashing due to fluctuating circuit voltage. Minor issues like a blown fuse or a short circuit are also common. Try checking the switch first to ensure it rebounds properly. If the lights keep flashing, it's best to take it to a repair shop to scan for trouble codes with a diagnostic tool. After all, keeping the hazard lights on continuously affects safety and drains the battery. Last time, I had a friend help me reset the module, which saved a lot of time. Also, make sure to close the car doors properly when parking to prevent accidental activation—it's a good preventive measure.
