I need help I have trouble reading the TCM for a GMC Sierra 2012 Pickup annex the error message
I need help I have trouble reading the TCM for a GMC Sierra 2012 Pickup annex the error message
More than likely its Tuner locked
I have the lastest beta already do the fuse part and stiil cant read the tcm for more information this pick up was bringing previously a superchips tuner which already remove....might have been wrong to remove the tuner and this could continue installed and this could cause this fault?