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The car’s turn signal flashes fast, what are the reasons why the turn signal flashes too fast

Blog 2年前 (2021-11-25) 250 Views

I believe that the problem of fast flashing of the car's turn signal has plagued many friends. So, how to solve this abnormal phenomenon, first of all, we have to know what are the reasons for the blinking of the turn signal too fast.

The flashing relay is damaged

First of all, we need to check whether the flash relay is normal, and directly use a multimeter to measure the output line of the flash relay to see if there is a 12v output. If there is an intermittent output change, it means it is normal. If there is no output or the output is always 12v, it means that the flash relay has been damaged and needs to be replaced with a new one.

Poor bulb contact

If the do-it-yourself ability is okay, we can check the bulb and the base for bad contact. Once there is a poor contact, it will naturally cause the phenomenon of flashing too fast, and it needs to be reinstalled firmly.

Bulb filament blown

Of course, it may also be because the bulb filament is blown, and when it is used for a certain period of time, it is also normal to appear aging, causing the turn signal to not work normally. Then, at this time, you have to replace it with a new one in time.

Lamp power is too high

If the turn signal was replaced before, it is probably because the power of the bulb does not match the flash relay of the original car, so that some abnormalities have occurred. If it is too large, it will flicker too fast. If it is too small, it is not possible. It is easy for the flash frequency to slow down, and it may even turn off directly. At this time, we need to replace a bulb that meets the specifications, and then it will return to normal.