1 ptsBOfficial number: 10098
What failure is indicated by a rapidly flashing turn signal?

Description
§ 2 of Annex No. 6 to the Regulation of the Minister of Infrastructure of 31 December 2002 on the technical conditions of vehicles and the scope of their necessary equipment (Journal of Laws of 2003, No. 32, item 262, as amended)
Explanation
Correct answer: Burnt-out turn signal bulb.
An increased flashing frequency of the indicator is a standard signal informing the driver that one of the bulbs on that side of the vehicle has blown. This is an intentional function of the electrical system, which signals a fault in this way. The faulty bulb should be replaced as soon as possible, as defective signalling of manoeuvres poses a serious threat on the road.