Hey Everyone, I'm hoping someone can help with finding a wiring diagram for the Fuel Pump / Connector in an 02 SR5. I actually have a Wiring Diagram (. Fortunately, most Toyota models come with a wiring diagram for the fuel pump, which can make installation and maintenance simpler. Installing a new Toyota fuel pump requires connecting it properly to the electrical system of the engine. This involves using the Toyota fuel pump wiring diagram.
The current flows to the c/opn (circuit opening) relay by turning the tr1 on. Then, the fuel pump operates. While the ne signal is input into the ecm, when the engine is running, the ecm turns the tr1 on continuously. Relay coil circuit between if-4 and ie-5 is not through ign fuse.. 4 & 5 depends on if you are looking at the harness connector or the fuel pump connector. I can never tell/remember which Toyota is showing in the wiring diagram illustrations of the connectors.