A small discussion on differences between Toyota Dealership and independent shop access re: TSK and Techstream "The local branches don't have the data. Any dealer that wants to swap a secured ECU for repairs has to login through Techstream to get the one specific key for the ECU he is inst...
For the immobox, there are processes done through the diagnostic port using Toyota’s TechStream software. Alternatively, a more “home-made” process, is to simply transfer the EEPROM chip (8-lead SOIC chip) from the cracked immobox to the replacement immobox. That is, desolder the chip ...