GMC SIERRA DENAIL 2015 Won't startup

[binm7md]

GMC SIEREA Won't startup

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Reading zeros

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-ZERO Temp (OUTSIDE)

-ZERO Oil stat

-ZERO Tyre pressures

-ZERO Fuel stat

-ZERO Trip stat

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I tried

-Disconnect battrey to drain ecu

-Checked igniton

-Checked ground wires and everything is ok and clean

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Same as this guy

 

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Thank you all

[Lsgun1]

You don't say what year you have but the 14-15 seemed to have problems with the ground wires located next to the dash speakers. Pop the pillar covers off then pop the most forward panel to the windshield up and you can see on the very corners there are ground wires. Start there.