Yes, the pins are:
Pin 31 - Ign Voltage (Switch)
Pin 32 - Battery Voltage (Constant)
Pin 49 - Ground (Big Black-white wire)
Pin 37 - CAN -
Pin 38 - CAN +
Works very good read all v8,v6 and 4 cil ecotec transmisions no problem.
And it does read with Vin and vehicle info with tunercats.
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