DTC C1258/58: Open Circuit in 2-4 Signal Change Circuit: Wiring Diagram
WARNING: This page is about a different car, the 2006 Toyota Tundra and 2005 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Open Circuit In 2-4 Signal Change Circuit Wiring Diagram (Access, Standard Cab)