- Switch off the ignition.
- Unplug the connector.
- Using the connecting wire, prepare the test procedure according to the following description.
- Use an external 12V continuous current source capable of carrying up to 10A minimum, or use battery voltage with a fuse.
1. Check the wiper motor in SLOW WIPER mode.
- Connect the positive terminal of the power supply to the positive terminal of the DMM.
- Connect the negative terminal of the power supply to pin 1 of the wiper motor.
- Connect the negative terminal of the DMM to pin 5 of the wiper motor. The wiper motor will operate at low speed.
Measure the current
Is the value on the DMM close to 1.5 A? If yes, go to step 2.
If not, INSTALL a new windshield wiper motor.
2. Check wiper motor in HIGH SPEED WIPER mode (drawing VFE0002216)
- Connect the positive terminal of the power supply to the positive terminal of the DMM.
- Connect the negative terminal of the power supply to pin 1 of the wiper motor.
- Connect the negative terminal of the DMM to pin 4 of the wiper motor. The wiper motor will operate at high speed.
Measure the current
Is the value on the DMM close to 2.2A? If yes, go to step 3. If not, INSTALL a new windshield wiper motor.
3. Check wiper motor in OFF position
Measure the resistance at the windshield wiper motor, between pin 2 and the wiper motor housing.
Is the resistance less than 2 ohms? If yes, go to step 4.
If not, GO to step 4 and REPEAT this test step (If still not, INSTALL a new windshield wiper motor).
4. Check the OFF position function of the wiper motor.
- Connect the positive terminal of the power supply to pin 5 of the wiper motor.
- Connect the negative terminal of the power supply to pin 2 of the wiper motor.
- Connect the connecting wire to the wiper motor, between pin 1 and pin 3.
Determine state
Does the wiper motor move to the OFF position?
If so, the windshield wiper motor is good.
If not, INSTALL a new windshield wiper motor.
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