GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 Envoy - 2WD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Cruise Control Schematics
Figure 1:

4.2L
Object Number: 1923496 Size: FS
Master Electrical Component List
Cruise Control Description and Operation
Control Module References
5.3L/6.0L
Figure 2:

5.3L/6.0L
Object Number: 1923500 Size: FS
Master Electrical Component List
Cruise Control Description and Operation
Control Module References
4.2L