The front and rear signal lights blink constantly to warn other drivers about your lane change made using the Toyota Avalon Turn Signal Flasher. The Turn Signal Flasher is hidden in the fuse box and receives power when the signal stalk is nudged. It sends pulses of current to the bulbs that flash at a pace everyone recognizes. Early models of Avalon utilized a thermal Turn Signal Flasher. Electricity warmed a springy metal strip, causing it to bend and close the contacts. The bulbs lit as the metal cooled down and opened the contacts. This created the familiar flashing and clicking sounds. The newer Toyota sedans shifted from the traditional electromechanical flasher to the electronic or solid state Turn Signal Flasher. This is basically made up of transistors and a timing chip that creates the same tempo without needing heat. This newer design functions flawlessly with today's low-draw LED lamps. Both serve the same purpose, but the electronic Turn Signal Flasher unit reacts much faster, is more durable with heat cycling, and can operate multiple lamp circuits. If your signals cut out or start flashing erratically, it is almost certain that a faulty flasher is the cause. By simply installing the correct unit for your Toyota Avalon, you will have predictable and legal signals back in no time.
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