Checking the windshield wiper
First, find out whether the windshield wiper motor or the power supply is defective. To do this, proceed as follows:
Disconnect the windshield wiper motor connector.

Apply voltage (+) from the battery terminal to terminal 2 using an auxiliary wire. (The negative pole of the motor is already connected to the (-) battery terminal through the body).
The windshield wiper motor should work at speed 1 (slow). If not, then either the motor or the 1st stage of the switch is faulty.
Connect the positive wire together with terminal 2 to terminal 1 on the right. The wiper motor should run at high speed (stage 2).

By briefly connecting, start the motor from any position except the end position.
Short-circuit terminals 2 and 3.
Connect the positive battery terminal to terminal 4 and check that the engine stops at the end position after it starts.

Checking the rear window wiper: Connect the battery positive to contact 3 of the connector and check if the motor works. Then short-circuit contacts 1 and 2 and connect the battery positive to contact 3. The motor should start and stop at the end position.
If the motor is not working properly, install a new one, see item 26.3.
