1. Check the conductivity.
windshield washer
Rear window washer
* in brackets - the position of the windshield washer switch
2. Checking the operation of the windshield washer.
A) Set the purifier switch to the OFF position.
b) Connect "+" battery to "+V", "-" to conclusions "+S" And "EW".
V) Connect the tester to the output "+1", and the tester to the conclusion "EW".
G) Make sure there is voltage between the terminals "+1" And "EW" with the ON or OFF position of the purifier switch.