The dashboard shows a headlight malfunction. How can I fix this? Has anyone encountered this before? Please advise.

The wiring inside the headlight has aged. Taking it apart and rewrapping the wiring solved the problem.

Disconnect the battery for a minute and then reconnect it, and it disappears.

I'm an S40 owner. Today, I just encountered this fault warning. I believe it's a false alarm for my car. I got out and checked all the headlights, and they were functioning properly. After turning off the vehicle and starting it again, the dashboard fault warning disappeared. For your reference.

The headlight malfunction warning indicates there's an issue with the headlights. The warning light will remain on until the problem is fixed. Simply clearing the fault code won't solve the issue; the key is to repair the malfunction.