2000 gmc jimmy security

hi, i have installed a remote starter on my truck and it works great, my problem is with the factory security system, in the manual it says to hook the arm wire to the tan wire on the drivers door pin, and the disarm wire to the light green wire coming from the drivers door harness. if i hook this up, the alarm will set off if i unlock the doors with the rs, but not if i unlock the doors with the factory remote. if i start the truck with these wires hooked up, the horn honks twice before the ignition powers up from the rs. the alarm always sets properly when i lock the doors with the rs, it just doesn't seem to disarm when i unlock the doors. now, am i hooking the disarm wire up to the right light green wire? the book says that it is a negative pulse, but how can i be sure that i have gone to the right wire? that is the only thing that i can think of. any help would be greatly appreciated. thanks guys.

here's a test....take a good test light and ground the clip.  Bare back the wire you suspect of being the disarm wire...now purposely set off the factory alarm (arm and open door for ex.).  simply touch the probe of the test light to the wire you suspect of being disarm.  If the alarm shuts up, you've got it.  If not, keep looking....

You may have to double over your wires as well...with a diode, split the unlock pulse (neg) and hit both the unlock and disarm wires.  But by the sounds of things, you don't have the right disarm wire....also, I've got this from designtech:

""**** See Note #202 - Positive Pulse Door Lock Diagram. ***** Disarm requires a +12 Volt pulse to both Ignition # 1 and Ignition # 2 wires simultaneously. Use a relay.""

good luck!

b

thanks alot, i'm going to try that out tonite, i'll post to give my results

k

right on, thanks you guys, it took me no more than 5 minutes to figure it out . both the rs and the oem alarm work great now. you guys saved me enough time to have a couple monday drinks

thanks again

kurt

did you need to use a gm bypass module?since your starter had the arm,disarm - outputs to pulse the lt green and tan wires?i'm installing a starter ina 2002 chevy blazer and was wondering if the bypass module is needed and what it exactly does and if anyone has a diagram to install it.because the instructions only show a cadillac install only. oh my remote starter also has arm -disarm outputs an ultrastart 3355a any help is appreciated.thanks.

no no no!!!!  PaskeyIII is on very few gm vehicles....your jimmy has Passlock II, and you don't need the relay and cut wires....read closer...    www.bypasskit.com  when it comes to interfacing with the computers in a vehicle, take NOTHING for granted...that usually yeilds a blown computer...

b