Radiator Cooling Fan Motor Relay: Testing and Inspection

Terminals A, B, C and D are terminals 1, 2, 3 and 4 respectively.
1. Disconnect relay connector. Check continuity with an ohmmeter.
2. Continuity should exist between terminals A and B. Continuity should not exist between terminals C and D.
3. Apply battery voltage between terminals A and B. Continuity should now exist between terminals C and D. If not, replace relay.