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Diagnosis And Testing - Relay: Notes

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.

The relays are located in the junction block or power distribution center. For complete circuit diagrams, refer to SYSTEM WIRING DIAGRAMS .

  1. Remove the relay from its mounting location.
  2. A relay in the de-energized position should have continuity between terminals 87A and 30, and no continuity between terminals 87 and 30. If OK, go to step  3. If not OK, replace the faulty relay.
  3. Resistance between terminals 85 and 86 (electromagnet) should be 60.7 - 80.3 ohms. If OK, go to step  4. If not OK, replace the faulty relay.
  4. Connect a battery to terminals 85 and 86. There should now be continuity between terminals 30 and 87, and no continuity between terminals 87A and 30. If OK, perform the Relay Circuit Test that follows. If not OK, replace the faulty relay.
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