Under Article 20 of Bahrain's Traffic Law Implementing Regulation, what must a driver do on discovering while under way that the vehicle has a defect or fault affecting traffic safety?

1. Continue to the destination and report the fault afterwards
2. Withdraw the vehicle from traffic by the shortest route and in the shortest time, keeping to the right-hand side of the road as far as possible
3. Stop in the lane where the fault was noticed and wait for a patrol
4. Reverse to the last junction and take an alternative route