Relay Test: Sigma

Remove defogger relay from relay block under instrument panel. Apply battery voltage to terminal No. 2 and ground terminal No. 4. Using an ohmmeter, continuity should be present between terminal Nos. 1 and 3. With voltage not applied, continuity should be present between terminal Nos. 2 and 4. No continuity should be present between terminal Nos. 1 and 3. See Figure .