Engine Control Module -J623-, REMOVING AND INSTALLING: Notes
WARNING: This page is about a different car, the 2018 Volkswagen Passat, 2017 Volkswagen Passat, and 2016 Volkswagen Passat. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If it is necessary to replace the engine control module, connect the Vehicle Diagnostic Tester and perform "Replace control module".