rolandmaier1

Active Hood Fault

I'm getting an "Active hood fault" message on my 2019 Volvo V40 gasoline. The airbag warning lamp is on, and diagnostics show an error stored and the spring actuators triggered. Mileage is at 248664 km. I suspect a defective acceleration sensor. Anyone seen this?

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)

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?

Thanks. The fault arose spontaneously; there were no preceding incidents or impacts that I know of.

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.

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