Focus ZTS L4-2.0L DOHC VIN 3 (2001)
Wiper Relay: Testing and Inspection
Front/Rear Wiper Relay
1. Check break contact.
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Measure the resistance between pin 3 and 4.
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Is the resistance less than 1 ohm?
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If yes, GO to step 2.
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If no, INSTALL a new relay.
2. Check make contact.
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Measure the resistance between pin 3 and pin 5.
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Is the resistance greater than 10 kohm?
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If yes, GO to step 3.
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If no, INSTALL a new relay.
3. Check relay contact in activated condition.
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Connect the positive terminal of the power supply with pin 1.
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Connect the negative terminal of the power supply with pin 2.
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Measure the resistance between pin 3 and pin 5.
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Does the relay switch audibly and is the resistance less than 1 ohm?
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If yes, the relay is OK.
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If no, INSTALL a new relay.
