Chevy TrailBlazer GMC Envoy Reduced Power Mode

Greetings viewers and welcome back to the channel. In todays production we have a Chevy TrailBlazer ( AKA GMC Envoy Isuzu Ascender ) that arrived with a customer complaint of an illuminated check engine light and reduced engine power warning. The vehicle had stored active codes U1000, P0452, P1221, P1271, P1635 and P1481. All related to a common 5 volt reference circuit of the powertrain control system. Come along for a quick tutorial on the diagnosis and repair for this common issue. Here is a link to the time saving video I mentioned in this vid: https://youtu.be/q95mBkgku3o

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Видео Chevy TrailBlazer GMC Envoy Reduced Power Mode канала The Car Doctor