What Causes the Car Turn Signal to Suddenly Flash Faster?
1 Answers
Reasons for a car turn signal suddenly flashing too fast: 1. Damaged flasher relay: First, check if the flasher relay is functioning properly. Use 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: Inspect the bulb and its socket for poor contact. Poor contact can naturally cause the signal to flash too fast, so ensure it is securely reinstalled. 3. Bulb filament burnout: It could also be due to the bulb filament burning out. Over time, aging is normal, which can prevent the turn signal from functioning properly. In this case, promptly replace it with a new bulb. 4. Bulb wattage too high: If the turn signal was previously replaced, it might be because the bulb wattage does not match the vehicle's original flasher relay, leading to abnormal behavior. Excessive wattage can cause the signal to flash too fast, so replace it with a bulb that meets the specifications to restore normal operation.