External force such as impact causing the bonnet locking mechanism faulty, or grinding wear after long usage time can also cause the bonnet locking mechanism, bonnet lock mechanism cable, and bonnet lock mechanism wiring faulty.
Suggest to diagnose at workshop.
1. Replace bonnet locking mechanism and re-align the position of the bonnet hood.
2. Replace the locking mechanism cable and apply lubricating grease.
3. Replace the locking mechanism wiring, clear the error, replace the bonnet hood sensor if it is faulty.