Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Front/Rear Wiper Relay

FRONT/REAR WIPER RELAY







1. Check break contact.

Measure the resistance between pin 3 and 4.

Is the resistance less than 1 ohm?

If yes, GO to Step 2.

If no, INSTALL a new relay.







2. Check make contact.

Measure the resistance between pin 3 and pin 5.

Is the resistance greater than 10 k ohm?

If yes, GO to Step 3.

If no, INSTALL a new relay.







3. Check relay contact in activated condition.

Connect the positive terminal of the power supply with pin 1.

Connect the negative terminal of the power supply with pin 2.

Measure the resistance between pin 3 and pin 5.

Does the relay switch audibly and is the resistance less than 1 ohm?

If yes, the relay is OK.

If no, INSTALL a new relay.