2003 Toyota 4 Runner Parts Diagram . Later models will have some small changes, but shouldn't vary dramatically. They also ship fast and are pretty well priced based on my experience so I'd recommend them as. 2003 Toyota 4-Runner Fuse Box Diagram – Circuit Wiring ... (Matthew Williamson) This material may not be reproduced or copied, in whole or in part, without the written permission of Toyota. They also ship fast and are pretty well priced based on my experience so I'd recommend them as. Under the VSC section I can find the switch but the only wires it shows are WG and WB which are. It has instructions and diagrams of EVERY SINGLE mechanical/electrical/body component on these trucks. They also ship fast and are pretty well priced based on my experience so I'd recommend them as. RAS (rear air suspension) switch question: - Toyota ... 2003 Toyota 4Runner Bumpe