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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> Charging System (Battery, Starter And Generator) & Cruise Control (1 Of 2) >> 27 Battery, Starter, Generator, Cruise Control >> Battery >> Battery, Disconnecting And Connecting >> 48V System, De-Energizing

48V System, De-Energizing

Special Tools And Workshop Equipment Required 

De-Energize the System

De-energizing the 48V system occurs exclusively in the Diagnostic  mode on the Vehicle Diagnostic Tester.

-- Connect the Vehicle Diagnostic Tester.

-- Select and start the Diagnostic  operating mode.

-- Select the Special functions  tab.

-- Select the 48V vehicle electrical system  folder.

-- Select De-energizing 48V vehicle electrical system  in the folder.

-- Start the selected program and follow the instructions on the Vehicle Diagnostic Tester display.