Headlight washer switch
Check the continuity between the switch terminals.
If the test results are negative, replace the switch.
Headlight Washer Control Relay
1. Checking the conductivity of the circuits.
a) Disconnect the control relay and check the circuits by connecting the tester to the wire side of the connector.
b) ground terminal 4 of the connector: the wiper motor should work.
Attention: this check should not be carried out longer than 3-5 seconds to prevent the electric motor winding from burning out.
If the test results are negative, replace the relay.
Headlight washer motor
Checking the work.
Connect the battery to terminals 2(+) and 1(-) of the breaker. Check the operation of the electric motor.
The original is published on the website [ToyotaMAN.ru]
Attention: this check should be carried out no longer than 3-5 seconds to prevent the electric motor winding from burning out.
If the test results are negative, replace the electric motor.