Caution! Before performing the test, locate the location of the relevant wires using the diagram (see Fig. subsection 12.22). Keep in mind that the power wires (connected to the battery) have a brighter color and a larger diameter than the ground connection wires.
Examination
1. If the wiper blades move too slowly, check the battery condition. If the battery is fully charged, remove the wiper motor (see below) and check the wiper blades by hand for freedom of movement. If necessary, lubricate all hinge joints or repair them. If this measure does not produce results, check the condition of the contacts, especially the ground connections. If all connections are normal, replace the motor.
2. If the windshield wiper does not work, check the fuse. If the fuse is good, connect the motor to ground with a separate jumper. If the motor turns on, repair the ground connection. Otherwise, turn on the windshield wiper and disconnect the motor connector. Check for voltage at the motor. If there is voltage, check the motor by connecting it to the battery using a thin wire. If the motor turns on, check the freedom of movement of the rod. Otherwise, replace the motor. If there is no voltage at the motor, check the voltage at the switch. If there is no voltage at the switch, check the wiring from the fuse to the switch. If the wiring is good, the switch is faulty.
3. If the brushes only work at one speed, check the wiring. If the wiring is OK, replace the switch.
4. If the brush frequency is not adjustable, check the wiring between the motor and the switch. If the wiring is OK, replace the regulator module.
5. If the wipers do not return to the parked position when turned off, check the voltage at the motor with the ignition on and the wiper off. If there is voltage, the limit switch inside the motor is faulty. Replace the motor. If there is no voltage, check and repair the wiring between the fuse and the motor.
6. If the brushes continue to operate until the ignition is turned off, disconnect the connector from the switch. If the brushes stop, replace the switch. Otherwise, the limit switch inside the electric motor is faulty. Replace the electric motor.
7. If the brushes go into the area below the edge of the hood, check the condition of the rods and the entire wiper mechanism. If the mechanism is in good condition, check the wiring between the electric motor and the switch. If the wiring is in good condition, replace the electric motor.
8. If the results of these tests are negative, replace the electric motor.
Replacing the front wiper motor
1. Loosen the mounting bolts (indicated by arrows) and lift the windshield wiper motor.
2. Unscrew the shaft nut from the back of the electric motor.
3. Disconnect the connector and remove the electric motor.
4. Installation is carried out in reverse order.
Replacing the rear wiper motor
1. Remove the hatch cover and unscrew the brush lever mounting nut. Remove the lever from the shaft.
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2. Loosen the shaft nut.
3. Open the back cover and remove the inner handle, lower door trim and hatch cover.
4. Disconnect the electric motor connector.
5. Loosen the mounting bolts (indicated by arrows) rear window wiper motor and remove the motor assembly with rods.
6. Installation is carried out in reverse order.