Landcruiser V8-4.7L (2UZ-FE) (2000)
If continuity is not as specified, replace the switch.
INSPECT DRIVER'S LUMBAR SUPPORT SWITCH CIRCUIT
a. Disconnect the switch connector and connect the seat wire harness to the floor wire harness.
b. Inspect the connector on the wire harness side.
If circuit is not as specified, inspect the circuits connected to other parts.