What is the reason for the malfunction of the right rear turn signal on the Audi A6?

[DiLandon]

The reason for the malfunction of the right rear turn signal on the Audi A6 may be: open circuit, flasher relay failure, excessive contact gap, and other factors. Flasher relay coil inspection: Open the flasher relay cover and check whether the coil and resistor are intact. If the resistor heats up and the contacts cannot close, press the movable contact; if the turn signal lights up at this time, it indicates that the relay is faulty. The contact gap should be adjusted if it is too large. Pressing the movable contact: If the turn signal does not light up when the movable contact is pressed and the contacts are closed, use a screwdriver to short-circuit the contacts. If the light turns on at this time, it indicates that the contacts are oxidized; if the turn signal still does not light up, the turn signal switch may be faulty. Use a screwdriver to connect the turn signal switch live wire to the left and right lamp wire terminals separately. If the light turns on, it means the turn signal switch is faulty and should be removed for repair or replacement.