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There is a electric motor that pumps washer fluid . Located in the bottom of the washer fluid tank .
Wash Operation (Front and Rear Wipers)
The front and rear washer systems use the same windshield washer fluid pump. When either the front or rear wiper is in the washer position voltage will be supplied to one side of the windshield washer fluid pump (depending on whether it is front or rear), while the other side of the pump is grounded.
At this point, the windshield washer fluid pump sprays solvent onto the windshield. When the front or rear washer is activated, the BCM receives an input from the switch that is activated. The BCM will control the wipers while in the WASH mode. The BCM will control either the front wiper relay or the rear wiper relay to turn on the wipers. The windshield wipers operate at low speed for 3 swipes and returns to the park position.
When turning on the washers do you hear the motor run ? Have some one try it while you listen at the washer fluid tank ! These pump motors do go bad .
turn OFF the ignition.
Disconnect the harness electrical connector of the windshield washer fluid pump.
Connect a test lamp from the windshield washer pump control circuit to a good ground .
Turn ON the ignition, with the engine OFF.
Press the front washer switch.
Does the test lamp illuminate?
YES or NO !
Sometimes the fluid plugs the tips and hoses up have you tried to blow through them or poke a little piece of wire in them.Wish I knew how to take the pump off for you but I am not familliar with that unit. Hard to believe its bad though
small plastic cam in colum atached to switch . stick a screwdriver in thier and flip it the oly way it will go. or u could just replace the switch. u might just have a short to. do they keep running with the car off
There is a fluid "pump" that is generally below the washer fluid reservoir under the hood. To check if the pump is bad try to spray some fluid and have someone listen under the hood while you are doing this. If they hear a hum or the system sounds like it is active but you are getting no fluid spraying out then you probably have a kink or stoppage. The spray nozzles are right below the windshield wipers and sometimes a piece of debris has lodged itself in. You can take a safety pin or something similar and try to get it out that way. If not you may have to take the hose apart and clean it that way. Hope this works for you.
It sounds like the wiper control module. The wipers on my 2003 did the same thing. After I pulled the fuse for the rear wiper, the front wipers started acting up as well. I had to pull fuses to stop them too. There is a recall on 2003 H2's for this issue. The cover of the wiper module on 2003s for the allows rain/water to get into the module. The cover will be replaced for free, however, in my case since the module was full of water and my wipers were not working, they replaced the module for free also. Not sure how much it would cost to replace on a 2005.