Table of Contents
How do you bench test a wiper motor?
The easiest way to do this is to put the motor in a bench vice, connect the vice to the ground of your car with the negative end of your jumper cables, and then clip the red cable to the positive battery terminal in the car on one end, and then just clip the remaining end on the black cable to keep it handy.
How do you diagnose a bad wiper motor?
Symptoms of a Bad or Failing Windshield Wiper Motor
- Wiper blades move slower than programmed.
- Wiper blades only have one speed.
- Wiper blades don’t move.
- Wiper blades don’t park in the correct position.
How do you test a wiper motor relay?
If no continuity, as the solenoid is powered, then the relay is bad. If you suspect the switch, simply turn the switch “on” and check for 12 volts from the switch output to any body ground. If 12 volts are not measured, then the switch is bad.
How do you perform a wiper motor to indicate the wiper motor condition?
Windshield Wiper Motor Test Using an ohmmeter, check for continuity between the wiper motor terminals as shown. Apply battery voltage and check the operation of the wiper motor as indicated. Replace the wiper motor, if not as specified.
Where is the wiper control module?
Some mechanics refer to the wiper module as the wiper governor module. It is located underneath the dashboard, above the brake and accelerator pedal, and is responsible for the complete operation of the windshield wiper system.
What would make windshield wipers stop working?
A torn windshield wiper is the most common cause of wiper malfunction. When the rubber edges on your wiper blades are torn, the wiper cannot move smoothly across your windshield and remove moisture or debris. This, of course, impairs your visibility and makes driving unsafe.
Can you test a wiper relay?
If you suspect the relay, power the relay solenoid directly with twelve volts. Then check for continuity across the relay switch contacts. If you suspect the switch, simply turn the switch “on” and check for 12 volts from the switch output to any body ground. If 12 volts are not measured, then the switch is bad.
How do you test a wiper relay?