`99 Express 3500 Security light on and won't start

[Bugzturbo]

I have a 1999 Express 3500 cargo van that I have owned for about 2 years now. The other day I went to start it and the battery was dead (been about a week since I used it). Put my jumper on it and it cranked and fired, but dies immediately. Tried again, same thing. Then I realized the security light was on. This has never happened before since I owned it. I changed the ECU about a year and a half ago and did have to reset the security then, but it went fine and have never had the issue again. Problem is, now I cannot get it to reset no matter what I do I've tried "key on for 10 minutes", "key on for 30 minutes", "key on for 10 minutes then off for 5 seconds, 3 times" and also "crank then leave key on for 10 minutes then off for 5 seconds, 3 times". Nothing is working. The light never goes out at all except when I turn the key off. What am I missing here? Also tried the "lock/unlock drivers door" trick too, but it is a cargo van with no power options, so I really didn't expect that to work anyway. Been messing with this damn thing for 2 days now to no avail. Any help is appreciated. Thanks

Bug

[Bugzturbo]

Anyone? Anyone??....... Bueller?

[moogvo]

I don't want you to feel like nobody is reading, but I don't have a good answer for you other than to contact the dealer and see what they say. I had this happen on a Pontiac Aztek once and it had to go to the dealer on the hook to be fixed.

[Bugzturbo]

Yeah, I called the dealer hoping they might give me a tip on what to do, but they wouldn't tell me anything but "bring it in". They want $150 just to look at it. Not fix it, just look at it. They can kick rocks.

[rjgoss]

I have a 99 chevy sub and it started something like that bout three years ago. For the last two and half years I stick the key in and turn just until the lights on the dash come on, make sure security light is not blinking and it starts right up everytime for the last two and half years. No dealer no nothin!