What Causes the Audi Pedestrian Protection System Malfunction?
2 Answers
Audi pedestrian protection system malfunctions are mostly caused by software issues within the control unit system and sensor device failures. Reasons for pedestrian protection system malfunction: When the Audi dashboard displays a pedestrian protection fault and prompts you to contact a service station, but the pedestrian protection system does not deploy, this situation may be caused by false alarms due to various sensor or probe failures. Solutions for pedestrian protection system malfunction: Wipe the ACC probe on the car, as the ACC probe is one of the important components in the Audi pedestrian protection system; open the engine hood and gently close it to check if the false alarm is caused by daily driving vibrations; restart the vehicle and initialize the onboard computer to rule out whether the fault is caused by a system false alarm; if the above methods fail to resolve the pedestrian protection fault, contact a 4S shop immediately for inspection and repair.
Last time my Audi pedestrian protection system reported a fault, which gave me quite a headache. Simply put, there are three common causes: sensor issues, like the camera or radar under the front bumper being covered by mud, snow, or insect residue, which can lead to inaccurate readings when dirty; software bugs, such as failed system updates or algorithm errors causing false alarms; and hardware damage, like loose sensor cables or unstable power supply after minor impacts. I recommend checking the front of the car for cleanliness before driving to prevent debris buildup. If a fault appears, try restarting first; if that doesn’t work, get it repaired promptly, as the pedestrian system is safety-critical and ignoring it increases risks. During regular maintenance, have the technician scan for diagnostic codes to catch issues early. Also, low battery voltage can interfere—insufficient charge may trigger false alarms, so don’t overlook such details. In short, high-tech gadgets are great, but they require careful maintenance.
