Fail-Safe Relay

Check continuity between relay terminals No. 3 and 5. See Fig 1 . Continuity should exist. Check continuity between relay terminals No. 1 and 2. Continuity should not exist. Apply battery voltage across terminals No. 3 and 5 and check continuity between terminals No. 1 and 2. Continuity should exist. If continuity is not as indicated, replace relay.

Fig 1: Identifying Fail-Safe Relay Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.