Why doesn't the Fiesta's reversing radar beep?
1 Answers
Reversing radar malfunction causes it not to beep when reversing. Possible reversing radar malfunctions include: First, check whether the host's power cord is properly connected and if there is current; see if the radar host wire is loose. If neither of these is the issue, the problem may lie with the radar itself. Second, if the problem is confirmed to be with the reversing radar, the first possibility to consider is a damaged buzzer, in which case you need to purchase and install a new buzzer. Additionally, check if the vehicle has undergone any recent modifications. If so, the reversing radar's wiring might have been damaged during the process, requiring the car to be taken back to the original workshop or a 4S store for inspection. Third, check whether the wiring connections at the bumper are intact, verify if the reversing light turns on when shifting into reverse gear, and inspect whether the reversing light's connection switch is damaged. Check if the computer displays any fault codes, and then examine whether the reversing radar itself has any issues. Function of the reversing radar: When reversing, the reversing radar uses ultrasonic principles. The sensor mounted on the rear bumper emits ultrasonic waves that reflect off obstacles, calculating the actual distance between the vehicle and the obstacle, then alerts the driver, making parking or reversing easier and safer. The reversing radar can accurately measure the distance between the rear of the car and the nearest obstacle; when reversing to the limit distance, it emits a rapid warning sound to remind the driver to brake; it can repeatedly issue voice warnings to alert pedestrians.
