S2000 Active Hood Fault

That's a strange one! I had a somewhat comparable issue on my old Volvo V70. Same "pedestrian protection" system, and the error messages were similar. Turned out to be a faulty acceleration sensor. I'm wondering, have you checked the wiring and connections to the sensors in the front bumper? Those can get corroded or damaged, leading to false readings.

Thanks for the suggestion! I haven't specifically checked the wiring to the acceleration sensors yet. Where exactly are they located, and is there a specific way to test them to see if they're faulty? Also, do you know if a defective car sensor would cause the spring actuators to trigger?

On the Volvo, the sensors were behind the bumper, near the headlights. I didn't test them myself; I just took it to a workshop. But yes, a faulty sensor can definitely cause the system to activate randomly. If the system thinks there's been a collision, it will trigger the actuators. Honestly, given the airbag light, I'd advise against messing with it too much yourself. It's a safety system, and you don't want to accidentally deploy something or mess up the airbag deployment in a real crash. A scan with a proper diagnostic tool at a shop is likely your best bet. Be prepared to replace the sensor.

Okay, I appreciate the advice. I'll take it to a reputable workshop and have them diagnose the system properly. It was indeed the acceleration sensor, as you suspected. The final repair cost was 315€ including replacing the sensor and labor. Thanks again for your help!