What Causes the Dynamic Turn Signal Failure in Volkswagen Vehicles?
1 Answers
Dynamic turn signal failure in Volkswagen vehicles may be caused by short circuits, faulty flasher relays, excessive contact gap, and other reasons. The details are as follows: Short Circuit: First, check whether the power line terminal of the flasher relay has electricity. If there is no electricity, check for a short circuit between the relay and the power source. If there is electricity, use a screwdriver to connect the two terminals of the flasher relay. If the turn signal lights up, it indicates a fault in the flasher relay, which should be replaced promptly. If it does not light up, inspect the flasher relay. Flasher Relay Fault: Open the cover of the flasher relay and check whether the coil and resistor are intact. If the resistor heats up but the contacts fail to close, press the movable contact. If the turn signal lights up at this point, it indicates a fault in the relay. Adjust the contact gap if it is too large. Excessive Contact Gap: If pressing the movable contact and closing the contacts does not light the turn signal, use a screwdriver to short-circuit the contacts. If the light turns on, it indicates oxidation of the contacts. If the turn signal still does not light, the issue may lie with the turn signal switch. Use a screwdriver to connect the power line of the turn signal switch to the left and right light line terminals separately. If the light turns on, it indicates a fault in the turn signal switch, which should be removed for repair or replacement.
