Without rear window wiper
1. Place the washer motor in a reservoir of water.
2. Connect the "+" of the battery to the "B" terminal of the electric motor, and to the "F" terminal and make sure that water comes out of the fitting.

With rear window wiper
1. Place the washer motor in a reservoir of water.
2. Connect the "+" of the battery to the "B" terminal of the electric motor, and to the "F" terminal and make sure that water comes out of the nipple (in the windshield wiper).
3. Connect the "+" of the battery to the "B" terminal of the electric motor, and to the "R" terminal and make sure that water comes out of the nipple (in the rear window wiper).

