Can i swap a TCM from a different vehicle and use HP VCM to flash it? The vehicle is a 2006 HHR with a 2.4L with a 4t45E transminssion.
Can i swap a TCM from a different vehicle and use HP VCM to flash it? The vehicle is a 2006 HHR with a 2.4L with a 4t45E transminssion.
No. You will need GM SPS and a MDI 1/2 to do the initial programming and setup. Then you can use HPT to modify that factory software.
If it's new and totally blank, I believe you will need GM tools to do the first write. But yes, you can change the OS on a T42 TCM with HP Tuners.