1998 Silhouette windshield wiper only runs on high

1998 OLDSMOBILE SILHOUETTE
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OLDSVAN45
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Hello and thanks for the help,
My 98 Olds Silhouette (3.4L with 80,000 miles) windshield wipers only work on high speed.
I have tested the plug for the motor and found power on the gray and purple wires when wiper switch is on high. On all other settings the gray wire has power but the purple doesn't.

Any help is grately appreciated. :D
Jan 29, 2007 at 6:21 PM
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SERVICE WRITER
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https://images.2carpros.com/forum/automotive_pictures/30961_sill_1.jpg

Sounds like the switch if the power isn't getting to the motor on all settings.
Jan 29, 2007 at 6:46 PM
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OLDSVAN45
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Thanks Paul I will check into the switch. Any chance you could post a larger picture of the schematic or a link to the larger picture? I can't quite see everything on it.

Thanks again.
Jan 29, 2007 at 9:05 PM