Q: How do I diagnose and address various wiper issues, as well as remove and reinstall the wiper motor on Lexus ES300,Toyota Solara and 1997 through 2001 Toyota Avalon?
A: For slow wipers, check battery, inspect motor and connections, and replace if needed. If wipers fail, check Fuse and test motor. If motor works, fix ground or check linkage. If not, replace motor. Check switch and wiring if no voltage. For one-speed wipers, test wiring and connections; replace switch if fine. For interval issues, test wiring; replace module if fine. If wipers don't park, check motor voltage; replace motor if voltage present, fix wiring if not. If wipers won't stop, disconnect switch wiring; replace switch if wipers stop, motor if not. If wipers won't retract, check obstructions and wiring; replace motor if fine. To remove motor, remove arms, cowl cover, disconnect connector, remove bolts and assembly, and remove motor from assembly. Reverse for reinstallation.
A: To check the wiper motor circuit, make sure the battery is charged. Next, check for any binding linkage or pivots. If the issue persists, check for corroded connections like the ground connection. If the wipers don't work when activated, check the Fuse and repair the ground connection. If the motor still doesn't work, check for voltage at the motor and test it off the vehicle if present. Replace the motor if needed. If there's no voltage, check the wiper control relays and test the switch. For interval function issues, check the wiring continuity. If the wipers fail to park, check for voltage at the park feed wire. If no voltage, check for an open circuit. To replace the motor, disconnect the battery, remove the wiper arm nuts and arms, remove the windshield cowl cover, disconnect the motor harness, and remove the motor/linkage assembly bolts. Lift the motor assembly, pry the linkage rod, and remove the motor bolts. The installation is the reverse of the removal.
Q: How to remove and install a windshield wiper motor on Toyota Camry and 2007 through 2015 Toyota Avalon?
A: First of all, detach the cable from the negative battery terminal. Mark the positions of the wiper arm(s) on the windshield and the studs, then remove the wiper arm(s). Disconnect the wiper motor harness connector and remove the windshield wiper motor/linkage assembly mounting nuts. Lift the windshield wiper motor assembly from the cowl area. Installation is the reverse of removal.