Taillight Relay
Remove taillight relay (located in instrument panel junction block, behind left side of instrument panel). Using an ohmmeter, check continuity between relay terminals. Continuity should exist between terminals No. 1 and 2. See Fig 1. Apply battery voltage and ground between terminals No. 1 and 2. Continuity should exist between terminals No. 3 and 5. If continuity is not as specified, replace taillight relay and retest system operation.