potential sec issues

04 chev Blazer intermindent non-start like dead batt.Ideas??

--------------------------------------------------------------------------------

We have a 04 balzer 2wd and not trail blazer,that acts for all the world like the batt is dead.But isn't.Never had any issues with this ride till this yr.So never realy bothered with it.Don't even know much about if it has a factory sec system stock.Bought it second hand and at 1 time did have some kind of after market sound system components.Found where they removed the system and cut wires of after market system in the removal process.Did searchs and found some tech on the factory sec systems and will be goin over the ride weather permitting.But just thought i'd get a jump and see if anyone has ideas in the meantime.Some factory sec systems allow vehicle to start or turn over but stop seconds later.Which is what this has done a few times.The batts test out fine and 1 is brand new to eliminate that thought.Alt is testing fine both in the car and out by the 4 local advance and auto zones.only 105 amps so plan to upgrade later.(personal preff there).So have basicaly narrowed it down to either unknown sec issues or ignition issues which is still a broad field each in their own regard. Thanx in advance ....BillHey bubba watch this!!

Check the passlock wires and make sure they're connected properly.

what exactly is the problem symptoms? if it has anything to do with the passlock, when you start the vehicle, it will crank but not start, and the security light will flash slowly. if you have a no crank no start with all the lights on the dash powering up, i would say it is not passlock related. if you have no lights on the dash, I would say there is a bad connection at one of the following: battery ends power or ground, starter, or power distribution box feed. If all of these look good and no aftermarket hackjobs under the dash, i would say it was a bad ignition switch. good luck and hope this helps...My rifle is my friend...