I found this on youtube and thought I would share.
So If you find your car wont start one day, but has power - what to do? Its often a box under the steering wheel that locks the wheel from turning when the car is locked. These boxes are very expensive to replace (nissan wanted $2200!) and the part number is dhgmm1nc1a. However there is a free way to fix this.
ok. so hit the box under the dash with a hammer (yes you heard me right!). Not that hard but enough to shake it internally loose. The car will turn on to say accessory mode. now WHILE THE CAR IS UNLOCKED, follow the guide to pull the steering lock fuse. Its really important that you only do this is if the car is unlocked/powered on.
so once the fuse is out, you are ok to relock the car at will. no fuse means no power to this box to seize up again ! bingo. you saved a tone of cash