Motor turns but wont start. on 1996 Jeep Cherokee

There is no volt going thru nun of the two wires that plugs in to the coil when i turn the switch to on, need to know why and what do thanks. All the fueses are good

by in Luquillo, PR on February 02, 2011
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1 answer 2 comments
ANSWER by , February 02, 2011
one wire has 12 volts with the key on. the other wires goes back to the computer and grounds and ungrounds the coil for spark. the crank sensor controls that pulse and may be at fault. have it checked for failure at a shop. Roy
COMMENT by , February 02, 2011
Where dose the 12 volt come from? the 12 volt is missing.
COMMENT by , February 02, 2011
ignition switch with the key in the on position Roy