Ford Fiesta horn ringing by itself: how to fix Ford Fiesta horn ringing by itself: how to fix

The problem of Ford Fiesta with horn that sounds by itself this is unusual and the opposite of the problems that many motorists accuse: horn not sounding, as in the case of the Audi A1 due to wear or infiltration. In the following paragraphs we will see what is the solution to the automatic horn of the Ford Fiesta. Information from the official Ford bulletin is distributed by a well-known company that produces technical bulletins and tools for the aftermarket. As always, we remind you that if the car is covered by the seller’s warranty, it is always better to assert your rights.

WHY SOMETIMES THE HORN IN THE FORD FIESTA HORN BY ITSELF

Before going on to analyze the problem affecting certain Ford Fiesta with horn that sounds by itself in certain circumstances, it should be noted that this is not always a malfunction. For some versions and trim levels, including for example the Ford Fiesta with keyless locking system, the horn may sound in an exact sequence:

• give opening and closing confirmation of the car.
• when you try to lock the car, if one of the doors where the trunk is opento attract the owner’s attention and prevent him from leaving the car unlocked.

Therefore, before immediately thinking of a defect, check in the car’s instruction book or at the dealership that it is not an additional function. At most, if it bothers you, ask the staff to turn it off.

WHEN THE FORD FIESTA HORN SOUNDS BY ITSELF IS A FAULT

In the Ford technical bulletin instead the horn sounds by itself when it shouldn’t following an assembly error and not for a specific purpose. The cars to be checked on which the anomaly could occur are:

• Ford Fiesta in the production period from 2017 to 2018;
• the defect manifests itself with the horn that sounds by itself when you turn the steering wheel.

SOLUTION FORD FIESTA HORN THAT SOUNDS BY ITSELF

Since no error code can be found in the diagnosis, the repair follows empirical tests and checks. THE Ford Technical Bulletin 18-2128reports that in these cases, the “the horn wiring is misrouted”. So it is necessary:

• check self horn wiring it is damaged;
• correctly reposition the harness in the steering wheel;
• repair the wiring if necessary.

The mechanic can refer to the Ford bulletin for more details on the operations to be carried out. If your workshop does not find the solution to the Ford Fiesta horn problem it plays by itselfshow him this article.