How do you really reset the computer in your truck? Why is this such a mystery and why can't you locate proper procedures from Chevrolet on this. Well, today I give you my personal experience on resetting the ECM/PCM in my 2020 Chevy Silverado Trail Boss. I found the problem with the KINGBOLEN YA200 OBD2 Port Scanner and I will leave a link below. I am really glad I was able to use this in order to help me find out that I had a communication error. The error was code U0100: Lost Communication With ECM/PCM A. I took my truck to a shop for them to reset my truck's computer. After the Computer was reset, I did also have to do a throttle body relearn procedure. My Auto Stop/Start was not working before the ECM/PCM computer reset and then it started working again.

KINGBOLEN YA200 SCANNER: https://amzn.to/4aNWKQS
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My Trail Boss Build List:
~Retrax EQ Tonneau Cover: https://imp.i128439.net/JzZ45N
~BedRug Impact Bed Liner: https://imp.i128439.net/y2AQND
~UnderCover Swing Case: https://imp.i128439.net/Vmbb6M
~Amp Reseach Bed Step: https://imp.i128439.net/EKXK3n
~Husky Liners GearBox Storage Box: https://imp.i128439.net/0Z3A9Y
~Realtruck GoRack: https://imp.i128439.net/Pyv9oj
~Borla Atak Crate mufflers & X Pipe: https://imp.i128439.net/y2y5yv
~Sunpie Rock Lights: https://www.sunpie.co/?ref=P2CUOayA
~Lasfit Rock Lights: https://lddy.no/1fw4b
~Lasfit Reverse Lights: https://lddy.no/1g8tz
~Lasfit Tag: https://lddy.no/1gal6
~Lasfit Turn Signals: https://lddy.no/1exxk
~Lasfit Rubber Mats: https://lddy.no/1fm67
~ReadyLift SST 2.0
~Nitto Recon Graplers 285/15/18
~Cold Air Inductions Cold Air Intake
~Rough Country LED Bull Bar
~Rough Country Mud Flap Delete
~Ronin Bullet Antenna
~Footwell Lighting
~Painted Calipers-DupliColor Kit
~Plasti Dip Badges
~High Heat Painted Exhaust Tips
~BDTrims Letter Inlays
~Front Window Tent
~CarlinKit Wireless Carplay 3.0
~K&N Cabin Air Filter
~OPT7 Tailgate Lightbar
~OPT7 Underglow
~Jet Performace MAF Sensor
~Jet Performance Throttle Body
~Jet Performance Xcelerator
~KSP Performance 2in Wheel Spacers
~Amp Research Power Boards
~AuxBeam Switch Panel
~Road Active Suspension