Toyota and Lexus 30CM1200-dtc-0136 to 0139.bin Firmware
A catalog reference for 30CM1200-dtc-0136 to 0139.bin and its diagnostic trouble code label.
30CM1200-dtc-0136 to 0139.bin is a firmware catalog filename that identifies calibration 30CM1200 and labels it with diagnostic trouble codes 0136 through 0139. The filename does not establish the control module, vehicle application, or whether this file changes how those codes are reported.
What the code label indicates
If the label refers to the OBD-II codes P0136 through P0139, it concerns the bank 1 downstream oxygen sensor circuit. Those codes cover circuit, activity, and slow-response faults. The downstream sensor helps the engine control system monitor catalytic converter performance.
The filename alone does not confirm that interpretation or identify the file as stock or modified. It should not be taken as proof of fitment to a particular Toyota or Lexus vehicle.