2008 chevy express, r/s cycle, bypass
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=109168
Printed Date: May 14, 2025 at 2:09 AM
Topic: 2008 chevy express, r/s cycle, bypass
Posted By: j.schmoe
Subject: 2008 chevy express, r/s cycle, bypass
Date Posted: November 23, 2008 at 1:45 PM
Hi, new here hope someone can lend some knowledge. Attempting to get the remote start on my new work van, 2008 Express. I have the a ready remote model 24926 that I pulled from my last van, 97 Ford, which worked great. Now I have it installed in the Chevy with a Bypasskit model PKUCG2X immobilizer bypass. Van starts via remote but will only run 20 seconds or so, then dies. The r/s tries to re start it but no results. A little confused usally this stuff comes a little easier for me... Thanks in advance
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J.Schmoe
Replies:
Posted By: Chris Luongo
Date Posted: November 23, 2008 at 3:41 PM
1. Temporarily unplug or otherwise disconnect/disable bypass module.
2. Insert key most of the way into the ignition (but not far enough that it triggers the key-in-ignition chime).
3. Try the remote start? Does it work correctly now?
If it works right, then you have a bypass problem.
If it still doesn't work right, something else is wrong with either your installation or the remote starter.
Posted By: j.schmoe
Date Posted: November 23, 2008 at 8:03 PM
Yeah tried it, that gives me ign. power, acc. power, followed by nothing. Also tried all the way in, gives me service detterant message, same with thing with acc. or on postions. I don't know if I need resistance with this module, or if I'm just not prodramming RF correctly. It seems to me if van starts and runs for a little time the remote start portion must be correct, but this whole passkey III thing is really throwing me.
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J.Schmoe
Posted By: j.schmoe
Date Posted: November 24, 2008 at 6:10 PM
Ok today I got a little advice locally. The starter was programmed for voltage sense already, but for some reason wasn't seeing the voltage increase when running. So I turned off engine monitoring mode on starter. Now the van runs and remote start works as it should for about four minutes, then dies, then ign. and acc. power come on but van doesn't restart until system is turned off and reset. Any ideas, Ithink I'm getting close. :)
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J.Schmoe
Posted By: j.schmoe
Date Posted: November 27, 2008 at 1:35 PM
Am I corresponding to myself only? Tried running it with status output triggering relay for bypass module, thinking the module was over taxing the 400ma output. No that wasn't it. Still will only run between 3 and 4 minutes then check engine stays on. Pease Help.
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J.Schmoe
Posted By: chriswallace187
Date Posted: November 28, 2008 at 12:29 AM
I'd suggest running a tach wire...I've had some problems using voltage sense on any late model GMs.
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C Renner's Auto Electronix
My service is cheap, quick, and good - pick any two
Posted By: j.schmoe
Date Posted: November 30, 2008 at 2:06 PM
Ok, finally hard time to get back to this disaster. Ran the tach wire, non-common (not pink, brown, or black) this case it was the green wire with the other three afore mentioned on one of the coil packs on the drivers side of the engine. Reset the rs to tach sense, followed tach learn instructions, I think (it didn't really seem to respond the way instructions said), and presto... Same exact thing as in voltage sense. Now what? In my, far from expert, opinion it seems like something is missing as far as the van is concerned to keep it running. I mean I think the rs is "happy" but the van isn't. Any more ideas?
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J.Schmoe
Posted By: ckeeler
Date Posted: November 30, 2008 at 3:45 PM
van runs fine with the key though huh?
Posted By: j.schmoe
Date Posted: November 30, 2008 at 5:28 PM
Key to start and run = normal operation of van Remote started then key put in ignition and turned on brake pressed to turn off r/s = van continues to run normally Van started with ign. key then r/s started key turned off and removed = van continues to run for about 4 minutes then dies check engine illuminates and ign. and acc. stay powered same as normal r/s operation Hope this makes sense? Thanks again ------------- J.Schmoe
Posted By: j.schmoe
Date Posted: December 02, 2008 at 3:52 PM
Anyone have any ideas? I am hoping to nail this down. But I don't know what else I can do.  ------------- J.Schmoe
Posted By: ckeeler
Date Posted: December 02, 2008 at 4:20 PM
j.schmoe wrote:
Key to start and run = normal operation of van Remote started then key put in ignition and turned on brake pressed to turn off r/s = van continues to run normally Van started with ign. key then r/s started key turned off and removed = van continues to run for about 4 minutes then dies check engine illuminates and ign. and acc. stay powered same as normal r/s operation Hope this makes sense? Thanks again
what does the led flashes tell you as far as why it shutdown? how many flashes are you getting?
Posted By: j.schmoe
Date Posted: December 02, 2008 at 4:37 PM
I was getting timed out code. However I was just out trying things, with my dummy (door only) key. With remote start running I can put this key into igniton and turn it on and after the 3-4 minutes I can hear remote start click (relay within) but with key on it continues to run. But if I turn it off then van dies and lights illumniate same as "usual" r/s shut down. ------------- J.Schmoe
Posted By: ckeeler
Date Posted: December 02, 2008 at 4:50 PM
If it runs fine when you normally remote start and runs for the duration but only 4 minutes or so when you remote start after driving and then remove the key, that sound like turbo timer mode to me.
Posted By: j.schmoe
Date Posted: December 02, 2008 at 4:56 PM
What is turbo timer mode?
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J.Schmoe
Posted By: j.schmoe
Date Posted: December 02, 2008 at 5:09 PM
Just re-read ckeeler's reply, about turbo timer mode, never mind my dumb question, pretty obvious know. However the r/s never runs longer than 3-4 minutes. Something changes causing it to stop, unless I interupt it before 3-4 minutes (turn key to on). Hope that makes it more clear not more confusing. ------------- J.Schmoe
Posted By: ckeeler
Date Posted: December 02, 2008 at 5:19 PM
so your saying it only goes 3-4 minutes no matter what? even if just normally remote started from in your house? diagnostics says timed out? you probably need a new unit.
Posted By: j.schmoe
Date Posted: December 02, 2008 at 5:23 PM
Yeah you got it. Don't say new unit, my wife is mad already!
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J.Schmoe
Posted By: j.schmoe
Date Posted: December 02, 2008 at 9:34 PM
Ok I didn't buy a new r/s, but got to thinking why not pull the fully funtional unit for the pickup truck and try that one? So I did, voilla now fully functional van r/s.  So why not throw the other r/s aka POS into the pickup truck, just for fun? I did, works perfectly in there. So I guess now all parts of this equation are nailed down. THANK YOU ALL for help, wonderful site. I will keep an eye out to see if I can ever add anything in the future. I am not an accessory installer, I am however an electrician, but have some common sense to add.  ------------- J.Schmoe
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