4 thoughts on “A heap of new Wiring and ECU Diagrams Added!”

  1. are these diagrams the same as an aristo, i have a 2003 is300 and i have a gte engine out of an aristo that i want to swap in i also have the harness and body harness and computer for it but im having a hard time finding anyone who knows how to wire the car up to run.. any help?

    1. Hi,

      I have links for IS300 related ECU pinouts, Wiring Diagrams, Service Manual and Swap Manual which may come in handy below. Ignore any of the wiring diagrams in the swap manual, the other information linked on here is more up-to-date. Also all of the ECU pinouts for the 2JZGTE VVTi supra should be the same or extremely similar on the Aristo.

      IS300 ECU Pinouts – http://www.2jzgarage.com/2013/04/lexus-is300-ecu-pinouts/
      IS300 Wiring Diagrams – http://www.2jzgarage.com/2013/04/is300-wiring-diagrams/
      IS300 Service Manual – http://www.2jzgarage.com/2013/10/2005-is300-service-manual/
      IS300 Swap manual – http://www.2jzgarage.com/2012/07/is300-2jzgte-vvti-swap-manual/

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