hummer h2/cm3000 troubleshoot

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=132363
Printed Date: April 29, 2024 at 2:14 PM

Topic: hummer h2/cm3000 troubleshoot

Posted By: doh2nnie
Subject: hummer h2/cm3000 troubleshoot
Date Posted: October 11, 2012 at 10:43 PM

When I try to autostart my Hummer, it will start for 5 seconds, shut down restart for 5 seconds, shutdown and restart for 5 seconds. while this is going on the lights flash and factory horn sounds. Can anybody give me some insight as to what to look for to fix this. Local dealers only want to replace whole system. i bought this truck used and am unsure of who originally installed it. It is an 2005 automatic H2.

Thanks

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donnie

Replies:

Posted By: lspker
Date Posted: October 11, 2012 at 11:43 PM

sounds like the factory alarm is going off. try unlocking doors with factory fob and then start.

Posted By: offroadzj
Date Posted: October 12, 2012 at 6:13 AM

Do you know what bypass was used? The non=starting could also be the immobilizer. But the horn and lights is definitely factory alarm.

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Kenny
Owner / Technician
KKD Garage LLC
Albany, NY 12205

Posted By: doh2nnie
Date Posted: October 14, 2012 at 3:57 PM

unfortunatly I don't have the factory fob.

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donnie

Posted By: doh2nnie
Date Posted: October 14, 2012 at 4:03 PM

It is a datalimk! ADS-DL(16) I pushed the prog. button while checking for it. Hope that doesn't affect it.

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donnie

Posted By: kreg357
Date Posted: October 14, 2012 at 4:29 PM

Think I would try to re-learn the Tach Signal on the CM3000 first. Here are the steps :
Learning Tach/Injector Wire: Start the vehicle with the manual key and let the engine idle down. The next step
is to press the black tachometer button. The car siren will chirp once to confirm the tach was learned. If the
siren chirps 3 times, you have the wrong tach wire. ( It the Tach signal is supposed to come from the ADS DL and
for some reason it isn't then...)

With the Alarm also going off it's probably the bypass module.

You might also try a Factory Reset on the ADS DL bypass module. Before doing this, verify the wiring shown in the
install guide matches ( and is still well connected ) to what you have between the modules and truck. After the Factory
Reset, set the Installation Mode to Standard ( Two Blinks ) and lock it in. Then program to the trunk. It is all
described in the ADS DL GM1 install guide. Here is a link : https://www.idatalink.com/support/get-install-guide/guide_id/6628
Page 9 has the Factory Reset procedure and Page 8 has the Install Mode and Program procedures.

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Soldering is fun!

Posted By: doh2nnie
Date Posted: October 15, 2012 at 9:51 AM

I have reset the cm3000 however not the datalink. I will try this this today.

Thanks

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donnie