Jeep Repair: 97 grand cherokee / no spark, crank sensor, grand cherokee

Question
if possible can you tell me exactly where the pcm is in the jeep and what that stands for?? and how do i ohm that wire by putting my volt meter on the setting that beeps when i touch the contacts?? i really appreciate all the help your a life saver just tonight i changed the crank sensor and i really don't want to throw tons of money at this truck

Answer
the PCM is the engine computer  on the fire wall pass side 3 connectors going to it. U might want to get a book to show the wire diagram   if u have a volt meter  then more then likely it has an ohm meter on it as well get a manual for that  so U can read up on what ohms are.  anything past what u are doing now or this U should get some one with experience to help u out and show u on the jeep.