Make sure the battery is charged well before checking the wiper motor: Slow wiper movement normally means either a bad battery or something stopping the wipers from moving freely. Take out the motor, try running each wiper yourself to spot stuck parts, fix them as needed, then reinstall. Check all electrical connections to the wiper motor, starting with the ground terminal and moving on to other terminals. Replace the motor if your examination shows no signs of problems. Start by checking the
Fuse; if it's not the problem, link a jumper wire between the wiper ground on the motor and a good chassis ground, and hit the wiper button again. Look at how the motor responds when you connect the battery and turn on the wiper switch to HI. If there's no power, test it with jumper wires and see if you get voltage. Look for binding in the linkage if the motor runs; if it's blocked, replace it. Start by checking voltage at the integrated control unit; if it's present, test the wiper switch for proper connection; if the switch works, the integrated unit may be broken. When the switch isn't working to control the wiper, check both the wiring between the switch and control unit for breaks, and if nothing shows, take it to a dealership to inspect the control unit. When you turn off the switch, look for electricity flowing through the park feed wire at the wiper motor connector when you turn on the ignition; if nothing, test the route between the wiper motor and fuse panel for an open circuit. Try unplugging the wiper control switch wires, then check if the wipers stop. If they do, replace the switch. But if they keep running, you need a new wiper motor with a working limit switch. First look for objects blocking wiper movement, then examine both the wiring and connection between switch and motor for normal function. Replace the motor if everything else passes inspection. First, take off the windshield wiper arm and cowl cover. Then, disconnect the electric connection from the wiper motor and detach the wiper linkage assembly. Unbolt the wiper motor and lift it out, reversing steps when putting everything back. You can reach the wiper arm nut by pulling back the wiper cover. Untighten the nut, detach both the wiper arm and the rear wiper arm, and lift the rear hatch panel to glove box space. Remove the panel, disconnect the electrical wire, unscrew the mounting brackets, and take out the motor. Put everything back on in the reverse order.