where is the pcm located on 2001 pathfinder

im sorry i had the wrong yr, its under the dash behind the radio

well it is going to be hard to get to, also can it be tested off the car. i can just see it but do i need to remove the dash.

THE BOOK SAYS 1/2 HR TO REPLACE. THERE ARE SOURCES THAT CAN TEST BUT I NEVER TRUST THEM, YOU MIGHT WANT TO LOOK ON LINE FOR GOOD USED OR REMAN. PART.