Trip from Nazareth to Janin

Hello. On Friday, 30 March, or Saturday, 1 April, l would like to go with my rental car from Nazareth to Janin. My car has double insurance, valid for Israel and Palestinian Territories. Could you tell me: which way to take? Where to cross the border? The checkpoint is always opened? Best day and hour to go? How much time it takes? Thanks a lot for your answer!! José