RAM 3500 Truck 4WD L6-5.9L DSL Turbo VIN C (2002)
Mini ISO Relay: Testing and Inspection
Relay
Relay Test
The relays are located in the junction block or power distribution center. For complete circuit diagrams, refer to 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.
