Where is the horn relay located in an Audi A4?
1 Answers
Audi A6 horn relay is located in the control cabinet or control box. The functions of the relay are as follows: 1. The car horn relay uses a small current to control a large current, serving to protect the switch. 2. The working current of the car horn is relatively large (tens of amperes). If the car horn is directly controlled by the switch, the contacts of the button will be burned, and the switch will frequently be damaged, significantly shortening its lifespan. If a relay is added, the switch controls the relay, and the relay then supplies power to the horn, preventing the switch from being burned out. 3. If the car horn is controlled by the car's computer, a relay is even more necessary to further effectively protect the electrical safety of the car's computer.