ECM Replacement procedure.
Thread Starter
Safety Car
Joined: Feb 1999
Posts: 4,977
Likes: 10
From: Reno NV
ECM Replacement procedure.
I have a 2005 C6 that most likely going to need the ECM replaced.
So the question is, once I get the new one in hand what do I need to do
aside from physically installing it?
I have done a bit of reading but the more I read the less clear it becomes. One guy says one thing another something else.
I have a Tech 2 (clone).
Does it need to be flashed?
If so can I do it through the Tech 2?
Or do i just install it and relearn the crank sensor?
Does anyone know where I can find the actual install procedure in writing?
Or just someone who has done it.
So the question is, once I get the new one in hand what do I need to do
aside from physically installing it?
I have done a bit of reading but the more I read the less clear it becomes. One guy says one thing another something else.
I have a Tech 2 (clone).
Does it need to be flashed?
If so can I do it through the Tech 2?
Or do i just install it and relearn the crank sensor?
Does anyone know where I can find the actual install procedure in writing?
Or just someone who has done it.
Racer
Joined: Mar 2015
Posts: 354
Likes: 110
Module Programming
A basic GM Tech 2 itself cannot program or reprogram individual modules like the ECM or BCM. Specific software files are required to be loaded, as is a way to transfer that software to the vehicle module via the OBD II port. There are several ways to do this, one of which is to use the Tech 2 as a pass-through device, another of which is to first download the software to the Tech 2 and then transfer it to the vehicle. The Tech 2 user instructions discuss connections to the terminal that contains the necessary software (e.g., dealer techs connect via their own network, others may subscribe to a service to obtain the information).
Specific written instructions for programming modules such as the ECM and BCM are contained in the Service Manual for the vehicle. These instructions typically assume that the technician has working knowledge of how to set up, connect and download the required programming features. A good place to start for specific module programming instructions in the service manual would be the section on Vehicle Control Systems.
Specific written instructions for programming modules such as the ECM and BCM are contained in the Service Manual for the vehicle. These instructions typically assume that the technician has working knowledge of how to set up, connect and download the required programming features. A good place to start for specific module programming instructions in the service manual would be the section on Vehicle Control Systems.
Last edited by snomuncher; Aug 27, 2017 at 08:00 PM.
Le Mans Master
Joined: Oct 2014
Posts: 8,687
Likes: 2,731
From: Atlanta GA
I have a 2005 C6 that most likely going to need the ECM replaced.
So the question is, once I get the new one in hand what do I need to do
aside from physically installing it?
I have done a bit of reading but the more I read the less clear it becomes. One guy says one thing another something else.
I have a Tech 2 (clone).
Does it need to be flashed?
If so can I do it through the Tech 2?
Or do i just install it and relearn the crank sensor?
Does anyone know where I can find the actual install procedure in writing?
Or just someone who has done it.
So the question is, once I get the new one in hand what do I need to do
aside from physically installing it?
I have done a bit of reading but the more I read the less clear it becomes. One guy says one thing another something else.
I have a Tech 2 (clone).
Does it need to be flashed?
If so can I do it through the Tech 2?
Or do i just install it and relearn the crank sensor?
Does anyone know where I can find the actual install procedure in writing?
Or just someone who has done it.
Dave
Former Vendor
Joined: Nov 2005
Posts: 11,792
Likes: 255
From: Ossining New York
St. Jude Donor '07-'08-'09-'10-'12-'13-'14
YES, I can help!
Give me a call any time at 914-332-0049
Chuck CoW
Last edited by Chuck CoW; Aug 28, 2017 at 01:40 PM.
Melting Slicks
Joined: Nov 2013
Posts: 2,589
Likes: 70
From: Memphis Tn
