2002 Trailblazer GMDLBP troubles

I have a Panther PS-5000 (Remote start/alarm combo) installed, yeah not the greatest but have installed few and seem to work pretty well.

I am having problems with the GMDL-BP. It is a Version: H1.S2
The 2002 Trailblazer has OEM Alarm and Keyless entry.

     It seems to have difficulty doing the bypass of the Oem system. It locks/unlocks fine and alarm functions properly. The trouble is only in remote start.

     When I remote start: the accessories get power and fuel system does, it waits a little, doesn't engage starter.....then the doors lock/unlock about 5 times, then goes through the remote start sequence again since it failed to start. I beleive I get power to the starter because it did start twice(but shut right off) This would mean the bypass failed. This did only happen once though.......
     I had the ground while running (GWR)attached to the same wire on the Remote start (RS), that didn't work.
     Tried a relay for that wire with the GWR wire from RS and OEM Disarm from RS to GWR of the GMDLBP, didn't work.
     And tried direct ground to GWR of GMDLBP, didn't work.
     It basically has to have something to do with this module not working properly, others seem to have had the same troubles on this board with the Trailblazer and the GMDLBP....but no input on what they did for a remedy.

I am thinking a newer version of the module might work, but don't want to buy another if it wont.
Has anyone used this module on a Trailblazer with sucess?
I am thinking of just getting the PLDATA and the GMDL1 since this GMDLBP seems to hate my trailblazer. Basically don't want to have to wire every door separate!

Anyone have any ideas.......hate to have to buy 2 separate modules.

dei jsut released the new module for gm. does all the good stuff. one module for locks and paslock

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yeah, but does it actually work. And what module is it?

The GMDL-BP is suppose to do all that stuff, but appears to have troubles with trailblazers for some reason.

dei part num. 457 gw

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I know of the 455G for trailblazers and 456G for full size trucks.....haven't heard or even been able to find the 457? Does it control the Door locks and Passlock via databus? Where would one locate this?

thanks

It is a brand new all in one module. Does it all for almost every gm car that requires two modules. Cost is cheap wholesale is like35 bucks

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any ideas on where to get one....can't seem to locate one?

btw.....thanks for the info

are you doing shadetree work or do you have a legit business?

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no business so can't get the wholesale deals....this is on my own vehicle (recent purchase)....and the only RS install that I've had trouble with.

i am not sure if these guys sell over the counter, but you can try ... altron international. thier info is at www.altronint.com

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or just go buy one from a local authorized dealer..... the new modules aren't available here yet... ETA is in the next week or two I'm told.....

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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer

Owner/Installer
Classic Car Audio
since 1979

Not exactly sure how to find a local authorized dealer.....the only one local shop to me that I have found sells the Trilogix that I am having trouble with. I have more local shops, but they won't sell the modules unless I buy the RS from them and they install.

But would you happen to know a dealer in the Iowa City or Cedar Rapids, Iowa area that might get me one?

thanks

How about trying to relearn the resistance code....  Unplugging the unit and retry programming the whole thing over again.

I've got a plxr and another gmdlbp that I'm I would sell. Pm If you need em.

We are a dealer of bypasskits.com modules....

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It sounds like a definite platform issue... I have done about 3 of these vehicles and the first 2 no probs.. The third didn't want to play nice at all... After fighting with it for an hour I just swapped modules and it worked great... ended up putting the original into another vehicle and no probs...   I am about 50- 50 in confidence with bypasskits right now.. some work great and some lose their Fin' minds... It is frustrating....espesially when you can trouble shoot it, everything checks out , then your down to looking at a data stream, and what that means is pretty much jibberish...



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Tire Proz Stillwater Mn
High End Restyling and Comlete Repair

Mobileworks-you have a PM

Hymer-I know what you mean. It is very frustrating knowing that it is installed right and something won't work properly. You wouldn't happen to remember what versions those modules were do you?

I've gone over everything at least 3 times and reprogramed/removed the GMDL-BP another 3 with no sucess. That's why I figure it has to be that module.

9maybe you have the wrong r code wire? Why not try... Putting the r code wire back together and then put the key in the cylander and remote start the car. Does it start? If you hooked up a key sense wire you will have to disconnect it to try this. I find it hard to believe that two bypasses were bad right out of the box, but stranger things have happened

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Your not using the ground out when running wire for anything else are you??

I have installed many of the GMDL-BP, including three on Trailblazers. The only problem I have ever run into is that I was using the ground out when running wire to also trigger a relay for a second igntion.... and it was freaking the module out. I put a diode in, and it fixed the problem.

Shawn


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Hak

Siemens Autostart

misterjimbo: not sure what you are trying to say. The GMDL-BP is only one wire to the vehicle......connects to the databus. And I didn't try 2 bypasses, just kept trying the same one.

Haku: Just using the ground out when running for the GMDL-BP. I tried direct connect, adding a relay, and directly grounding it and got the same results. I think it is because the module I have is an early version. I think the H2 version would work but not sure, that's pretty much why I am here......

Sorry forgot what bypass you were using. Disconnect the data bus wire and then put the key in ignition and try to remote start.

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Well....picked up a new GMDLBP ver H2.S5 which appears to be the newest model and am still having troubles.
With the new module in, I can get it to start but it runs for a few seconds then dies. It's acting like the bypass isn't doing it's job? Have the GWR hooked to a relay to help(it didn't) and tried straight to ground(same result).

Also, this new one doesn't unlock the doors.
----press lock-sends lock pulse
----press unlock-sends lock pulse again ??????
----tried my old module, it locks and unlocks fine but doesn't start vehicle.

2 modules that are different versions giving completely different results........at least it starts with the new one, but the locks don't work right.....This doesn't make sense at all.

Anyone have an idea?

      Some mods need a double pulse unlock to work the locks, is that one of them????

I don't think so.....but that wouldn't explain why the old one works the locks fine but the new one doesn't. I reprogrammed each to the same setting and nothing.

Make sure you program that module properly.  It is type 1 first of all and you should program it for one pulse to unlock all the doors.  Another thing.  Does it have factory keyless??

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John J. DiStefano Jr.

It's programed to type one. I set the option for locks to unlock all doors. It is just weird. The one module will unlock doors fine and won't start. The other will only lock and start the truck for a few seconds. It isn't a problem with programming the module, because it is doing that. But isn't working right.

Thinking about tossing both and going with 2 separate modules.....PLDATA and the other door lock mod.

This really isn't making any sense.

The engine will die after remote starting if the GMDL-BP's brown wire is not attached to the alarm's second status wire.

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delphidoc wrote:

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< language=>postamble(); The engine will die after remote starting if the GMDL-BP's brown wire is not attached to the alarm's second status wire.

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He attached it through a relay triggered by the GOWR wire ( which is the status wire ). I've had the same problem with a 2004 Sierra that I put a GMDLBP module on where the truck wouldn't start but the doors locks would work, but it would also set off the OEM security when you tried to unlock the doors. Still waiting for the customer to come back to me to finish off the installation but I'm going with two separate modules for this truck ( GMBP & the MULTIDL )

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Velocity Motors wrote:

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delphidoc wrote:

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< language=>postamble();</> The engine will die after remote starting if the GMDL-BP's brown wire is not attached to the alarm's second status wire.

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He attached it through a relay triggered by the GOWR wire ( which is the status wire ). I've had the same problem with a 2004 Sierra that I put a GMDLBP module on where the truck wouldn't start but the doors locks would work, but it would also set off the OEM security when you tried to unlock the doors. Still waiting for the customer to come back to me to finish off the installation but I'm going with two separate modules for this truck ( GMBP & the MULTIDL )

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And this is why I'd like to compile info on bypass systems... Ya gotta admit sometimes you just can't get things to work. Now why would they make something that doesn't work?

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Tell the Snap-On guy I'm not here!

figured I'm not the only one with problems with this module.....lookes like I'll be putting in the PLDATA and probably multidl