How do you test a rear windshield wiper motor?

How do I know if my rear wiper motor is bad?

Symptoms of a Bad or Failing Windshield Wiper Motor

  1. Wiper blades move slower than programmed.
  2. Wiper blades only have one speed.
  3. Wiper blades don’t move.
  4. Wiper blades don’t park in the correct position.

How do you test a rear wiper motor?

Disconnect the harness connector from the motor and check for voltage. With the ignition on, there should be voltage coming from the load reduction relay. With the rear wiper switch activated, there should be voltage from the relay. Also check for continuity to ground at the third (ground) terminal.

Why would my rear windshield wiper stop working?

When a windshield wiper is not working, it could mean that the electrical motor inside the wiper shorted out or malfunctioned. This means that your wipers won’t work at all. Inspect the motor – there could be a loose wire in the circuit.

How do you tell if it’s the windshield wiper motor or switch?

Wiper Blades Start Moving Slower

You can choose the speed and delay that suits your needs the best. However, slower moving blades are a sign that something is wrong. If you select the fastest speed and the blades move as if they were on the lowest setting, you might have a bad motor.

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How do you test a rear wiper switch?

Unplug the wiper motor connector. 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.

How much is a rear wiper motor?

The average cost for windshield wiper motor replacement is between $297 and $352. Labor costs are estimated between $79 and $100 while parts are priced between $218 and $253. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location. Related repairs may also be needed.

What causes windshield wiper motor failure?

Some factors can disrupt this process. For instance, too much ice or snow on your windshield may cause your wipers to get jammed and cause circuit overloading. Your wipers may also malfunction if components like the control switch, wiper control unit, wiring, or linkage blades fail.

How do you check a windshield wiper fuse?

Locate your main fuse box and look for the windshield wiper fuse and-or relay. The fuse will be a type of glass tube or a spade design. Visually inspect the fuse to see if the filament inside either type is internally disconnected or blackened. Replace the blown fuse.