What Causes the Turn Signal to Flash Too Fast?
1 Answers
The reasons for a turn signal flashing too fast are as follows: 1. Damaged flasher relay. First, check whether the flasher relay is functioning properly by using a multimeter to measure the output line of the flasher relay to see if there is a 12v output. If there is intermittent output variation, it indicates normal operation. If there is no output or a constant 12v output, it means the flasher relay is damaged and needs to be replaced with a new one. 2. Poor bulb contact. If you are skilled, you can check the bulb and socket yourself for poor contact. Poor contact will naturally cause the flashing to be too fast, so it needs to be reinstalled firmly. 3. Bulb filament burnout. It may be due to the bulb filament burning out. Aging over time is normal, causing the turn signal to malfunction. In this case, a new bulb should be promptly installed. 4. Bulb power too high. If the turn signal was replaced previously, it might be because the bulb power does not match the vehicle's original flasher relay, leading to abnormal conditions. If the power is too high, it will cause the flashing to be too fast; if too low, the flashing frequency may slow down or even fail to light up. In this case, replace the bulb with one that meets the specifications, and normal operation will resume.
