2000 gmc jimmy security

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=22503
Printed Date: May 15, 2025 at 1:48 AM

Topic: 2000 gmc jimmy security

Posted By: vetteluvr33
Subject: 2000 gmc jimmy security
Date Posted: December 07, 2003 at 5:59 PM

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.

Replies:

Posted By: HamiltonAudio
Date Posted: December 07, 2003 at 7:31 PM

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!

Posted By: vetteluvr33
Date Posted: December 08, 2003 at 6:19 PM

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

Posted By: sparkie
Date Posted: December 08, 2003 at 8:26 PM

To arm the factory alarm pulse (+) the door lock wire (light blue) in the connector plug to the left of the steering column. Use the (+)lock output wire from the remote starter. Hook your (-) re-arm wire from the remote starter up to the tan wire in the purple plug of the body control module located under the center dash behind the black panel. This will arm your alarm and shut off your radio. To disarm the factory alarm pulse the light green wire (-) in the same purple plug. The unlock wire (+) is in the same plug as the lock wire. Use atest light or meter to check for the lock/unlock wires as there are a few white and light blue and not all are the right ones.

-------------
sparky

Posted By: vetteluvr33
Date Posted: December 08, 2003 at 10:01 PM

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 posted_image

thanks again

kurt

Posted By: GORGO
Date Posted: December 12, 2003 at 10:06 PM

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.

Posted By: sparkie
Date Posted: December 13, 2003 at 3:41 PM

Hey Gorgo. You will require a bypass for the Passlock system in your truck. The Passlock system is the factory immobilizer and requires an interface. The factory alarm only protects the contents of the vehicle and should be wired the same as the 2000 Jimmy above.

-------------
sparky

Posted By: GORGO
Date Posted: December 14, 2003 at 11:52 AM

thanks sparky,my only concern now is the installation diagram that came with the unit only shows a cadillac pass key 3 installation.i'm taking for granted it's the same for my passlock.it shows cutting ignition 1 wire and installing a relay normally open with a - signal out of it to close the ignition circuit. and the - signal from the rs.also an output to pin 2 ppl wire at diagnostic plug.the unit is p/n gmdapk3 autoland.does this sound like the right rig?

Posted By: HamiltonAudio
Date Posted: December 14, 2003 at 8:30 PM

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...

Posted By: GORGO
Date Posted: December 15, 2003 at 4:22 PM

finally got a hold of the tech whre i got the rs and he said the bypass module they recommended and sent was wrong one and have the correct one on the way.they forwarded the install instructions and it's the same as bypass kit.com's unit.thanks for not letting me do anything uninformed or stupid.all questions for rs install answered thanks guys.