2004 trailblazer ECM.
February 28th, 2019, 8:25 PM
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2004 trailblazer ECM.
I have a 04 Chevy Trailblazer and I changed out the ECM and it won’t start. I have been told that I need to reset my truck but I don’t know how. I bought it already programmed with the VIN
March 12th, 2019, 9:38 PM
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Since you are not getting any responses here, I'd call the dealer and see what they say. I assume it was starting fine before you replaced the ECM? And why did you replace the ECM?