GMC Savana U0101: Meaning, Causes, Diagnosis | Drivetrain Resource
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GMC Savana U0101: Meaning, Causes, Diagnosis | Drivetrain Resource
U0101 is a generic powertrain code, which means it has the same definition for the GMC Savana as it would any other vehicle. It means that your Savana's TCM (Transmission Control Module) can't communicate with the rest of the vehicle, usually due to a bad wiring harness or an issue with the TCM itself. U0101
Jul 13, 2021
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