GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Cell 91 WSWA Switch, Interval Switch, WSW Motor and Relay


Object Number: 381931  Size: FS
Wiper/Washer System Components
Wiper/Washer System Circuit Description
Cell 91 WSW Pump, WSW Nozzles, and Gauge Cluster
Ground Distribution Schematics
Figure 2:

Cell 91 WSW Pump, WSW Nozzles, and Gauge Cluster


Object Number: 241931  Size: FS
Wiper/Washer System Components
Wiper/Washer System Circuit Description
Cell 91 WSWA Switch, Interval Switch, WSW Motor and Relay
Fuse Block Schematics Schematics
Instrument Cluster: Analog Schematics
Ground Distribution Schematics