Peugeot 607 Active Hood Fault

Whoa, that sounds familiar! I had the EXACT same thing happen with my 607. Drove me nuts! That "Active Hood" thing is part of the pedestrian safety system – if the car thinks you've hit someone, it pops the hood up a little to cushion the impact. The airbag light comes on because the systems are interconnected. Is it going off randomly or after hitting a bump?

The system fault and airbag lights were initially occasional, but are constant now. I have neither been in an accident, nor driven on bumpy roads recently. Has anyone else encountered this problem with the acceleration sensor?

Okay, intermittent to constant definitely points to a failing sensor or the wiring. The acceleration sensor is what triggers the active hood system. I ended up having to take mine to a workshop because messing with airbags and safety systems can be dangerous. They replaced the sensor, cleared the codes and it was all good. Was not cheap though!

I appreciate the advice. It confirms my suspicion of an acceleration sensor fault. After confirming the issue and part availability with the local workshop, I booked it for repair. The defective sensor was replaced, and the error codes were cleared for 315€.