Step 4 - Inspect Lumbar Support Switch Circuit
WARNING: This page is about a different car, the 2002 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the switch connector and connect the seat wire harness to the floor wire harness.
- Inspect the connector on the wire harness side.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If circuit is not as specified, inspect the circuits connected to other parts.