GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2007 🢒 Lucerne 🢒 Body Systems 🢒 Wipers and Washers 🢒 Wiper/Washer Schematics
Figure 1:

Wiper Motor Power and Ground
Object Number: 1794112 Size: FS
Master Electrical Component List
Wiper/Washer System Description and Operation (Wipers and Washers)
Control Module References
Outside Moisture Sensor and Windshield Washer Solvent Heater
Underhood Fuse Block B+
Outside Moisture Sensor and Windshield Washer Solvent Heater
G104
G101, G110, G111, G114, G115, G302, G303, G306, G307
Figure 2:

Outside Moisture Sensor and Windshield Washer Solvent Heater
Object Number: 1794126 Size: FS
Master Electrical Component List
Wiper/Washer System Description and Operation (Wipers and Washers)
Control Module References
Wiper Motor Power and Ground
Rear Fuse Block B+
Underhood Fuse Block B+
Rear Fuse Block B+
RAP Relay, CTSY/RF TRN, S/ROOF, SHFTR SOL, RAP Fuses
Wiper Motor Power and Ground
RUN Relay, HTD STR, HTD/COOL/IGN3, BCM LOGIC Fuses
G402
G104
G300
G104
G304