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GM Tech help needed! (ECM,BCM, keyfobs Question)

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Old Oct 9, 2014 | 12:45 PM
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Firehawk-Adde's Avatar
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From: Karlskoga, Sweden
Default GM Tech help needed! (ECM,BCM, keyfobs Question)

Car is a 2006 C6 Z06.

Original problem: Car was bought smashed on the right side, where the ECM sits, so the original ECM were toast in the crash....

Problem 1: A brand new ECM was bought at GM and a GM technichan tried to program it to the car with no luck, he couldn´t get any communcation with the ECM, therefor unable to program it?

Temporary solution: Borrowed ECM, BCM and keyfobs from Another Z06 (2007) I have, car starts right up and everything is fine, all functions is there, however this was just a temporary fix cause that car needed is computers back.

Problem 2: Was able to get all computers and keyfobs from a 2008 C6 LS3/manual car, but that was a no go, so I thought that car was to new, or something else is diffrent cause it was a none Z06, or that they changed something because of the 2 year diffrence between the cars...?

Problem 3:Recently I found all computers and keyfobs from a 2006 C6 Z06 at a junkyard that I tried and thought everthing is gonna be fine, cause it ran with the previous computers from the Z06 -07...but this was also a no go...what am I missing here? These last computers were from Z06 sold new in Europe? Anyone know of a diffrence between markets that makes my car not start?

Best Regards.
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Old Oct 9, 2014 | 06:48 PM
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sreve's Avatar
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GM dealer or a tuner should be able to bench flash it. As for the no communication
#16 12v #4 & #5 grd on the data link should be your first checks.
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