The windshield washer and the rear window washer are activated by the internal wiper motor modules when it receives a ground from the multi-function switch between the washer inputs. Depending on the correct ground, the internal wiper motor modules activate either the windshield washer or rear window washer relays (internal) by grounding the respective relay coil. When either module is activated, it connects voltage to the washer pump while the deactivated module provides ground to the washer pump. In this manner, voltage polarity is reversible to achieve directional change of the washer pump and washer fluid.
Just from reading this I would think the washer pump is bad . But find the washer fluid bottle an pull it off the vehicle or find the wiring connector to the pump an hook up a test light or volt meter an check for b + volt while activating the washers .If there is B+ voltage the pump is bad .
Testimonial: "Ok.. thanks"
The washer fluid might be empty. Have you tried adding some?
Testimonial: "yes i checked the fluid and the pump was replace in the front tank 7 months ago."
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