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Home >> Buick >> 2017 >> Verano Base, Gas/Ethanol >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> DTC B1020: Auxiliary Electronic Control Unit (ECU) Performance >> Conditions for Setting the DTC

Conditions for Setting the DTC

The radio receives an improper status response indicating an internal ECU fault in the radio controls.

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