Why do the hazard lights still flash when the car is turned off?
2 Answers
As for the issue of the driveshaft leaking oil, it is necessary to go to a repair shop for inspection and treatment. Whether it needs to be replaced depends on the specific situation. The following is a detailed introduction: 1. Driveshaft: The driveshaft is the shaft in the universal transmission device that can transmit power. It is a high-speed, low-support rotating body, so its dynamic balance is crucial. Generally, driveshafts undergo dynamic balance tests before leaving the factory and are adjusted on a balancing machine. For front-engine, rear-wheel-drive vehicles, the driveshaft transmits the rotation from the transmission to the main reducer. It can consist of several sections connected by universal joints. The driveshaft is composed of a shaft tube, a telescopic sleeve, and universal joints. 2. Assembly of various components: The driveshaft connects or assembles various components, and the circular moving or rotating parts are made of lightweight and torsion-resistant alloy steel tubes. For front-engine, rear-wheel-drive vehicles, it transmits the rotation from the transmission to the main reducer and can consist of several sections connected by universal joints. It is a high-speed, low-support rotating body, so its dynamic balance is crucial. Generally, driveshafts undergo dynamic balance tests before leaving the factory and are adjusted on a balancing machine.
Why do hazard lights keep flashing after engine off? Based on my years of repair experience, 80% of such cases are caused by these culprits. Either the body control module (BCM) is malfunctioning - this component manages all vehicle lights and may send chaotic commands when it crashes. Or there's an issue with door lock switches - when locking signal isn't properly transmitted, the system thinks doors aren't securely closed and keeps flashing warnings. Vehicles with modified audio wiring are particularly prone to circuit shorts, as improper wire tapping can cause signal interference. Another subtle cause is weak remote key battery - when the locking signal becomes too faint for the car to receive, it keeps flashing in protest. The most troublesome scenario is stuck relays inside modules - when contacts fail to separate after power off, requiring center console disassembly for inspection. Try disconnecting the battery first to reset the system. If that doesn't work, you'll need an OBD scanner to read trouble codes.
