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DTC’s with gmdl4 and gmalldata?

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=21871
Printed Date: May 10, 2025 at 7:23 AM


Topic: DTC’s with gmdl4 and gmalldata?

Posted By: Justaguy
Subject: DTC’s with gmdl4 and gmalldata?
Date Posted: November 24, 2003 at 12:48 AM

Has anyone  seen codes from these modules on 03,04 chevy trucks? We had some issues with gmdb7(ultrastart's wanna-be data bypass), so after we pulled them out and cleared the codes(lots), we installed gmaad's (gmalldata or something like that) and had lots of codes too. We also checked a few ones with gmdl4's and they had codes as well. They're not turning on the engine light or anything, just setting codes.

Just wondering if others are having issues like this.



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Replies:

Posted By: HamiltonAudio
Date Posted: November 24, 2003 at 9:18 AM

have just started using the GM All Data (DATA1)...have at least a handful of em out there new on new 03 and 04 trucks and avalanches...never had a problem yet.

b




Posted By: securinu
Date Posted: November 24, 2003 at 10:56 PM
who makes that piece i have bypasskit pldata is it the same???

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Joe O'Byrne
Owner / Installer



Posted By: Justaguy
Date Posted: November 24, 2003 at 11:48 PM

I'm not sure who makes that piece, I didn't see a problem with them either, until i plugged a tech II into some trucks and start reading codes. Unplug the dl4, or what interface, clear the codes, works fine. Plug the dl4 back in, and then the codes come back. Maybe i just got a couple of touchy trucks or something. Not sure



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