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USB PORT SHORT


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I have a customer with a Pnp G4X HC96 ecu. Today i plugged the usb port into the laptop and it shorted out my laptop port. Then i changed the usb cord and picked another laptop and it shorted out again. Measured voltage on the usb coming from the ecu is 12V. 

Anyone knows whats up here? Not the first time powering up the ecu. It was tuned from me the very first time.

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