- Loose or corroded battery cables: Check the battery cables and make sure they are tightly connected and free of corrosion. Tighten any loose connections and clean any corrosion with a wire brush.
- Faulty battery: Check the battery to make sure it is charged and free of defects. A simple way to do this is to connect a voltmeter to the battery terminals. The voltage should read between 12.6 and 13.2 volts when the engine is off. If the voltage is lower than this, the battery may need to be replaced.
- Faulty alternator: The alternator is responsible for charging the battery and supplying power to the electrical system. If the alternator is faulty, it may not be able to charge the battery properly, which can cause the battery light to blink and the turn signals to not work properly. Have the alternator tested by a qualified mechanic if you suspect it may be faulty.
- Other electrical issues: A variety of other electrical issues could also cause the battery light to blink and the turn signals to not work properly. These could include a faulty ignition switch, a short circuit, or a blown fuse. If you are not able to identify and fix the problem yourself, take your car to a qualified mechanic for diagnosis and repair.
