Consists of two boards – CAN and ISO (there are no single-board). On a working device, all four LEDs are on.
In terms of repair, they mean the following:
ISO, CAN – the processor of the corresponding card counted the firmware from the flash, launched the 3.3v converter, thereby energizing the USB port controller AN2131 (AN2135), and Windows loaded the corresponding driver.
Battery – 12v from OBD
USB – 5v from USB
All other types of these boards can be considered “clones” of the original. Some are pretty much redesigned, but they are all RLT2002.
defined in the software as RLT2002 PROBE
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