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A turn signal bulb may go on and off due to a faulty connection, such as a loose wire or corroded socket, which disrupts the electrical flow. Additionally, a burned-out bulb can cause the turn signal to flash rapidly or intermittently. In some vehicles, a malfunctioning relay or flasher unit can also lead to erratic blinking. Regular maintenance and timely bulb replacement can help prevent these issues.

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1mo ago

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