Windshield Intermittent Wiper Volume Check
WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
Check that the resistance varies between 0 and 1 k/ohm when the windshield intermittent volume is turned from FAST to SLOW by measuring resistance between connector terminals 27 and 28 at the column switch.