07 exterra crank no start and no spark ? on 2002 Nissan Xterra

have a nissan exterra 2007 58000 miles crank no start checked 4 spark no spark what do i check next? checked all fuses.

Asked by for the 2002 Nissan Xterra
these are very had to diag at times. do you have spark from coil if so poss dist issues
1 more answer
check for rpm reading with scan tool...no rpm=bad crank sensor