rolandmaier1
Active Hood Fault
Summary of the thread
A 2019 Volvo V40 displayed an "Active hood fault" message, accompanied by an airbag warning light and error codes indicating triggered spring actuators. The issue was suspected to be a defective acceleration sensor. It was confirmed that the acceleration sensor was indeed faulty, and the problem was resolved by replacing it.
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4 comment(s)
rolandmaier1 (community.author)
Thanks. The fault arose spontaneously; there were no preceding incidents or impacts that I know of.
siegfriedwinkler1
In that case, given the sudden onset, it strongly suggests a sensor malfunction or wiring issue rather than impact damage. I'd advise getting it checked at a workshop. The diagnostic tools are essential to pinpoint the failing component.
rolandmaier1 (community.author)
Thank you. The acceleration sensor was indeed defective. Repair cost was 315€. I appreciate your insight.
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VOLVO
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V40
siegfriedwinkler1
I had similar symptoms with my 2017 Opel Insignia. The pedestrian safety system flagged an error, triggering similar warnings and error codes. Did the issue occur after hitting a pothole or a minor collision?