April 5, 2026: LEMON Manuals is launched! Read the announcement.

System Diagram

WARNING: This page is about a different car, the 2004 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.

The engine control system is determined by the ECM based on signals from various sensors.

Fig 1: Wiring Diagram: SFI System (1NZ-FXE)