GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Express 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Wiper/Washer Schematics
Figure 1:

Wiper Controls
Object Number: 2081015 Size: FS
Figure 2:

Wiper and Washer Motor Control
Object Number: 2081018 Size: FS