Greetings, I rebuilt my headlights on my 2002 3.0 Auto, and cleaned up the headlight washers. I observed the was liquid in the lines, and in the washers, but I’ve never seen them work. Now that everything is put back together, I realized I should have checked the motor.
I see in diagrams there are two motors on the tank, windshield and power wash. Windshield washer works fine. Is there a method for testing the power washer motor without taking the car apart?

 

You do know that the headlamp washers are on a sequence cycle? That is, they come on with the windscreen washers every 6th time they are used. The information for this is in the owner's manual. Not sure of the details because I never use the windscreen washers.

 

The headlight power wash operates automatically with the windscreen wash. The headlight power wash operates only if the headlights are switched on and there is sufficient washer fluid in the reservoir. The headlight wash operates with every fourth operation of the windscreen washers.

 

Dell yes I know, but I’ve never seen them work. I believe it’s the 6th time you use the washers with the Headlights on (not auto)
My Saab 900 SE headlight washers came on every time the windshield washer was used.

I wanted to tests the motor to verify it still works. Otherwise, I’ll just sit in my driveway and try and cycle and see if they operate