Check both your battery voltage and its health to see if the wipers are slow. Make sure the battery works well. Clean, fix, and add lubricant to the linkage and pivots once you've taken the motor out and asked the arms to move by hand. Then put the motor back into place. Look again at your wiring, starting with the ground connection, and then consider replacing the motor if everything else looks good. When you hit the wiper switch and the wipers stay off, look in the driver side fuse panel to see if the wiper fuse is blown. If it's good, try your own connection between the wiper ground terminal and ground; check to see if that helps the wipers work. When the motor won't work, look if a bad ground is causing the issue. Then, check for electrical supply to the motor while switching the wiper to highest speed, easily reached by taking off the cowl cover to access the electrical parts. Pull the wiper motor from the car, then use a wire from the battery, through a fuse, to test its operation away from the vehicle. When the motor runs, look into stuck linkage; reinstall it if necessary. When there's no voltage to the motor, begin by checking if voltage is flowing through the wiper control relays; if voltage is present at those relays but not at the motor, ask a mechanic to test your wiper switch for faults. When the switch works fine, most likely the wiper control relay is the issue. When the wipers won't run the correct time, check if all wires between the switch and motor control are working. Before closing the wiper switch, check the park feed wire of the wiper motor connector to see if it has voltage while the ignition is on. You should also test for an open circuit past the motor and into the fuse panel if no voltage is found. To get to the wiper motor, start by unlocking the trim panels covering the wiper arm wing nuts. Then loosen and remove those wing nuts from the wiper arms and note the positioning of each arm with the shaft before moving on. Uncover the plastic cowl protecting fresh air, pull the electrical cable of the wiper motor from its socket, and undo the mounting screw holding the wiper motor and link assembly together. Push the assembly to the right, removing the rubber insulation from locking it to a curved attachment. Unbolt the motor linkage rod at the crank arm's base, unscrew the crank arm bolt, indicate the crank arm's connection to the motor shaft, then take off the crank arm. Unbolt the wiper motor link rod from the wiper arm, pulling the whole motor and rod apart. To put it back in, just reverse these steps. To take off the rear wiper arm's motor, open the cap above it, unscrew the arm's holding bolt, write down how the arm fits on the motor shaft, and pull the arm off. To get to the rear wiper motor, you first must remove the trim panel from the back hatch door, disconnect the electrical power to the motor, take the rear wiper motor bolts off, and then you can safely detach the motor itself. Putting it all back together just follows the steps in reverse order.
Posted by ToyotaPartsDeal Specialist 
