Presence of voltage on the electric motor
When voltage is applied to pin 5 (mass - output 4) the electric motor must rotate at low speed, and when output 3 is energized, at high speed.
Examination
Attention! Before checking, find the location of the corresponding wires, using the diagram (see subsection 12.2.17.). Note that power wires are brighter colored and larger in diameter than ground wires.
If the brush stroke is too slow, check the condition of the battery. If the battery is charged, then remove the wiper motor and check by hand for free movement of the brushes. Lubricate all pivot joints or repair as necessary. If this measure fails, then check the condition of the contacts, especially the ground connections. If all connections are good, replace the motor.
If the wiper does not work, check the fuse. If the fuse is good, then connect the electric motor to ground with a separate jumper. If the electric motor turns on, repair the ground connection. Otherwise, turn on the wiper and disconnect the motor connector.
Check the presence of voltage on the electric motor (see fig. Presence of voltage on the electric motor). If there is voltage, then check the electric motor by connecting it to the battery through a thin wire. If the electric motor turns on, then check the freedom of movement of the thrust. 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, then check the wiring from the fuse to the switch. If the wiring is good, then the switch is bad.
If the brushes only operate at one speed, then check the wiring and circuit between the motor leads. If the wiring is good, replace the switch.
If the brush speed is not adjustable, check the wiring between the motor and the switch. If wiring is good, replace regulator.
If the brushes 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, then the limit switch inside the motor is faulty. Replace electric motor. If there is no voltage, then check and repair the wiring between the fuse and the motor.
If the brushes continue to work until the ignition is turned off, then disconnect the connector from the switch. If the brushes stop, replace the switch. Otherwise, the limit switch inside the motor is defective. Replace electric motor.
If the brushes do not reach the parking position, then check for obstructions and jamming of the traction. If everything is in order, check the wiring between the motor and the switch. If the wiring is good, replace the motor.
Replacement
1. Remove windshield frame trim and wiper arms.
2. Remove bolts on Camry and Solara models (A) and disconnect the connector (IN) wiper.
3. On Avalon models, remove the bracket (A), unscrew the bolt (IN) and disconnect the connector (WITH).
4. To remove the wiper rod on Avalon models, remove the indicated bolts.
5. Get the electric motor with drafts.
6. Turn away bolts and remove the electric motor.
7. Installation is carried out in the reverse order.