Land Cruiser, RAV4, Sienna, Tacoma, Tundra & 4Runner

Remove power main relay. On RAV4, Sienna, Tundra and 4Runner, relay is located in junction block No. 1 at left side of instrument panel. On Land Cruiser and Tacoma, relay is located behind left kick panel. On all models, check continuity between terminals No. 1 and 2 at power main relay. See Fig 1 or Fig 2 . If continuity is present, go to next step. If continuity is not present, replace relay.
Connect jumper wire from 12-volt battery positive terminal to relay terminal No. 1. Connect another jumper from battery negative terminal and relay terminal No. 2. Continuity should then be present at relay terminals No. 3 and 5. If continuity is not present, replace power main relay.

Fig 1: Power Main Relay Terminals (Land Cruiser & RAV4)

Fig 2: Power Main Relay Terminals (Sienna, Tacoma, Tundra & 4Runner)