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  1. V

    Fried 2020 Nissan Leaf TCU

    Hi All, I wanted to see if there was a removable SIM in the Telematics Control Unit (TCU) for my 2020 Leaf. I removed the TCU box by unplugging all of the wires and disconnected the lithium backup battery. After looking at the circuit board it seems that TCU uses a sealed cellular modem so...
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