GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2006 🢒 Lucerne 🢒 Body 🢒 Wiring Systems 🢒 Cruise Control Schematics
Figure 1:

Cruise Control ON/OFF Switch
Object Number: 1680106 Size: FS
Master Electrical Component List
Cruise Control Description and Operation (3.8L)
Control Module References
Serial Data Wake Up
High Speed Serial Data
Cruise Control Schematic Icons
Figure 2:

Serial Data Wake Up
Object Number: 1680110 Size: FS
Master Electrical Component List
Cruise Control Description and Operation (3.8L)
Control Module References
Indicators
Cruise Control ON/OFF Switch
Figure 3:

Indicators
Object Number: 1680111 Size: FS
Master Electrical Component List
Cruise Control Description and Operation (3.8L)
Control Module References
Serial Data Wake Up
High Speed Serial Data
Engine Data Sensors, APP and TAC
Power, Ground, and Low Speed GMLAN
High Speed Serial Data
Engine Data Sensors, APP and Throttle Body Assembly