Accessory Power Relay Test

Remove accessory power relay. Using an ohmmeter, check continuity between relay terminals No. 1 and 2. See Fig 1 . Continuity should exist. Apply battery voltage to relay terminal No. 1 and ground relay terminal No. 2. Continuity should exist at relay terminals No. 3 and 5. If relay does not test as described, replace relay.

Fig 1: Identifying Accessory Power Relay Terminals

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.