GMC SIERRA DENAIL 2015 Won't startup

[binm7md]

My GMC Sierra

Won't start and gauges are reading zero

- Tire pressures are zero

-Oil stats are zero

-Out side temp is zero and the real time temp is 25 degrees

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-Checked igniton

-Checked ground wires

-I did try to disconnect the battrey to drain ecu

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Same as before nothing happened

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Same as this guy

https://www.youtube.com/watch?v=m8qKrtNPbs8

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