GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 Lucerne 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Automatic Transmission Controls Schematics
Figure 1:

DLC, Ground and Power
Object Number: 2081247 Size: FS
Figure 2:

Shift Solenoids, TCC and TFT
Object Number: 2081248 Size: FS
Figure 3:

ISS, Pressure Control and VSS
Object Number: 2081249 Size: FS
Figure 4:

Internal Mode Switch (IMS)
Object Number: 2083015 Size: FS