cant turn ignition key its locked up ,how do i go about diagnoseing this problem on 1996 Buick Skylark

wires on brake look good same with wires on shifter,key is froozen moves but not out of locking position

Asked by for the 1996 Buick Skylark
Try turning steering wheel hard left and right while turning the key. If that dont work the lock cylinder will have to be replaced.