Focus ZTS L4-2.0L DOHC VIN 3 (2001)
Wiper Motor: Testing and Inspection
Windshield Wiper Motor
CAUTION:
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The magnets in the windshield wiper washer motor can become damaged if the motor is jarred.
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The ammeter must have a range of at least 10 amps DC in order not to be damaged.
NOTE: Use an external 12 V DC supply which can he loaded to at least 10 amps, or use fused battery voltage. Measure the power drained by the front
wiper motor.
1. Switch off the ignition.
2. Remove the windshield wiper motor.
3. Remove the component multiplug.
CAUTION: Mount the windshield wiper motor firmly, so that the wiper linkage can move freely.
4. Connect the negative terminal of the ammeter to pin 1 of the windshield wiper motor.
5. Connect the voltage supply negative to pin 3 of the windshield wiper motor.
6. Connect the voltage supply positive to the positive terminal of the ammeter and switch on the voltage supply. Read the current on the meter as the
windshield wiper motor runs at high speed. The reading should be about 3 amps.
7. Switch off the voltage supply and disconnect the negative terminal of the ammeter from the windshield wiper washer motor.
8. Connect the negative terminal of the ammeter to pin 2 of the windshield wiper motor and switch on the voltage supply. Read the current on the
meter as the windshield wiper motor runs slowly. The reading should be about 2 amps.
9. Switch off the voltage supply.
Check the limit switch.
Requirement: The windscreen wiper motor must not be at the rest position. Connect the voltage supply positive to pin 2, the voltage supply negative
to pin 5 of the front windshield wiper motor. Using test cables, connect pin 3 with pin 4 on the windshield wiper motor. Switch on the voltage supply.
The windshield wiper motor must run at slow speed and stop in the rest position.
If it does, continue with the next test step; if not, INSTALL a new windshield wiper motor.
