no spark at coil i think the computer is bad

hi can come1 help me

basically i have a dodge ram 5.9L motor and this thing will not start
there is no power going to the coil

i took the coil off and changed it with a tested working coil and i changed the distributor with a working one and it still doesnt work

when i tryed to read the computer error codes it does not show anything or respond

i need a new computer dont I?

what should i check? i heard the crank sensor has to send something to the computer right and there has to be good fuel pressure in order for the computer to start sparking?

i need some advice so i can find my problem . when i turn the key on i see the check engine light flash once so that means there is communication with the computer but when i do the key on off on off on i dont get the code readout like i should be getting

all my other trucks will give me the codes if i do that

ita a 1994 with computer 5608266

actually i didnt do the code search right

in 5 seconds i have to go on off on off on

this time i got code 12 for recent battery disconnect which i did yes
and then i got 11 for crank sensor

where is the crank sensor is it the sensor in the tranny hole by the engine?

Most are on the bellhousing like this....

http://pic17.picturetrail.com/VOL856/1102933/2077148/125749237.jpg