The following pages are from the GM manual on wiper operation. They are in MS Word format. Thanks to DaveC for supplying them!
Page 12-39
Page 12-40
Page 12-41
Page 12-42
Page 12-43
Page 12-44
Page 12-45
Page 12-46
Page 12-47
Page 12-48
Page 12-49
Page 12-50