What Causes the Turn Signal to Flash Too Fast When It's Not Broken?
1 Answers
Turn signals flashing too fast despite not being broken can be caused by a faulty flasher relay, poor bulb contact, a broken bulb filament, or a bulb with excessive wattage. The specific reasons are as follows: Faulty flasher relay: First, check if the flasher relay is functioning properly. Use a multimeter to measure the output wire of the flasher relay to see if there is a 12V voltage output. If there is intermittent output variation, the flasher relay is normal. However, if there is no output or a constant 12V output, it indicates the flasher relay is damaged and needs replacement. Poor bulb contact: You can inspect the bulb and its socket for poor contact. Poor contact will naturally cause the turn signal to flash too fast, so ensure the bulb is securely reinstalled. Broken bulb filament: Over time, the bulb filament may break due to aging, preventing the turn signal from functioning properly. In this case, simply replace the bulb. Excessive bulb wattage: If the bulb wattage does not match the vehicle's flasher relay, it can cause abnormal behavior. Excessive wattage leads to faster flashing, while insufficient wattage results in slower flashing. Replace the bulb with one that meets the specifications, and normal operation will resume.
