security light

Does anybody know what to do about the security light on my 2000 s10?
It comes on intermittantly and sometimes when I try to start the truck it will flash and and the truck won't start..Does the security feature on these trucks have a module ? Or is it something to do with the ignition switch causing the problem? I have tried to find a repair manual for this subject , but keep coming up empty handed...

does anybody have an idea about how to go about fixing the security light issue I am having on my s10.?.. Or even where I can get a repair maual for this problem?

Not going to be much help, but I had a similar problem on my 2000, though it wasn't intermittant. Mine turned out to be a short in the ECM wiring harness, took the dealer 2 days to find it. Luckily it was a warranty repair! Best thing for manuals is the Helms manual (www.helminc.com). They're pricey (around 100-150) but they're the ones used at the dealer and have the most detailed instructions, troubleshooting, wiring diagrams, etc.

Thanks got your message ...My truck is not under warranty , but I might have to take it to the Dealer anyway.I'm goting to check out the book you suggested................appreciate the reply

Thanks got your message ...My truck is not under warranty , but I might have to take it to the Dealer anyway.I'm goting to check out the book you suggested................appreciate the reply
Hi i'm having the same problem what was your solution, and is there a way to bypass the security system. THANKS!