I have an 07 LMM truck in here for a customer, Autocal was purchased from another vender with a preloaded tune for the DSP5 and loss of emissions stuff. Long story short the original ecm was bricked, the company the customer bought the Autocal from sent a used ecm preloaded with the DSP5 tune. The used ecm needs to have the Immobilizer relearned through GM's TISWeb, I went to do this and the GM program locks after downloading the file, it locks on "receiving ecu status". I am aware that once a DSP5 tune is flashed into these ecu's it can no longer be read out, is this lock causing the GM TIS to not be able to read out the ecu status? Anyone ran across this problem? Any help would be great