windshield washer fluid spray control logic?

CATDiezel

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Anyone happen to know the logic behind the windshield washer/wiper control?

Is it controlled through the BCM module?

I have several 17's for work now and I noticed that the function on the washer fluid control is far greater than the 16-down.

I hate the logic of wiping the window at the same time it tries to start spraying fluid. It should be the other way around... spray fluid then start wiping.

Any thoughts? Any and or all of my 16-down seem to have a delay in the washer fluid squirting after the wipers have already started wiping or smearing or scratching dirt.
 

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