Video Summary
Here is the summary of the YouTube video:The video addresses potential reasons for car turn signal malfunction.
It is suggested that bad or incorrect bulbs are the number one reason. The right bulb can be found in the owner's manual. Bulbs can be tested using a continuity tester. It is advised to test even new bulbs. Sockets can be corroded.
Other possible reasons for malfunction:
The Flasher Relay isn't always easy to find. Check your manual, but Google for your year and model if you can't locate it. Pulling the relay out and pushing it back in may help.
Also, make sure the correct fuses are used. Don't just put a blue fuse in because the other fuse was blue. Get your schematic for where your fuses are what they belong.
Corroded loose wires and connections are another factor.
The Turn Signal Switch can go bad, or the Integrated Hazard Light Switch could be faulty. This is another avenue.
The Battery or Charging System can be low on older cars. In newer models with integrated systems, something as simple as adjusting the clock could mess with them. If modifications have been done, even simple changes may cause problems.
Environmental conditions (hot, cold, wet) can factor into the issue.
Wiring Harness Damage is also possible but difficult to address.
With a voltmeter, users can run a continuity test to see if electricity runs through their electrical parts.
