How do you test a rear wiper relay?
Test for voltage to the switch. Move the switch through its functions and make sure there is voltage present at each plug location. Follow the manufacturer’s guidelines for switch removal and test procedure for each specific wire location and function. Test the rear wiper relay.
What should I do if my rear wiper is not working?
Probe the voltage supply plug with a voltmeter and make sure voltage and ground are present. Move the wiper function switch through all positions to determine proper voltage at the plug. If there is no voltage, check the voltage supply to the dash switch and check the rear wiper fuse. Remove the wiper switch from the instrument panel.
How does a wiper switch work on a car?
Before reaching the wiper motor, the wiper switch sends power to a relay. This relay serves two purposes. It allows a small current signal from the switch to control a large current that powers the wiper.
How can I tell if my wiper motor is suspect?
Make a fused power supply wire and ground wire. Apply direct voltage and make the motor run. If it runs and is not growling and noisy, it’s okay. Remove the wiper switch and inspect it. Test it for proper voltage supply. If it’s okay, then by process of elimination, the module is suspect.
Where is the windshield wiper motor located?
The motor is located by the heater wiper motor tray right in front of the car’s windshield. Some vehicle’s have motors that include a rear wiper, which is set to clean the center of the screen beneath the hood of the car.
Where is wiper fuse located?
One fuse is located in the under-hood fuse block (wiper fuse #14 , 25amp). The second fuse is located on the body control module, which is located inside the center console, behind the panel on the right side of it. If you were sitting in the passenger seat, it would be to the left of your left leg. It is the wiper sw fuse (10 amp).
Where is the fuse for wiper motor?
The fuse panel is under the instrument panel to the left of the steering column. Lift the handle to unlatch the panel and pull it down. The windshield wiper/washer system uses a circuit breaker in position #2 in the fuse panel.
Is there a wiper relay?
The electronic relays that are installed in today’s cars, trucks and SUV’s have to operate in very hot and grueling conditions or are subject to constant abuse. The wiper relay is unique in that it’s found inside the wiper control handle which often has selector switches giving drivers multiple…