Cougar/XR7 V8-4.6L VIN W (1997)
Washer Fluid Level Indicator: Description and Operation
Vehicles equipped with a windshield washer low fluid warning indicator system have a LOW WASHER indicator in the instrument panel.
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When the washer fluid level is approximately one-fourth full or lower, the windshield washer reservoir fluid level sensor switch contacts close,
illuminating the LOW WASHER indicator.