Porsche 996 TT Repair Manual page 1849

einordnung
The plug connections are identified with X and a number.
In the case of wires that branch off onto another sheet, the coordinates and, in some cases, the terminal
designations are specified.
996420, 996421, 996450, 996451, 996620, 996621, 996650, 996651
97 Wiring diagram for 911 Turbo (996), 01 model 1786