09 Yaris No Start

[CTScott]

Originally Posted by dieselphreak

Ok I'm still ready to condemn the ecu. However, let me clarify a few things.

The back seat is out of the car and I have wired up an LED to monitor pump operation. Nothing with key on, only while cranking or running on starting fluid

The new issue I noticed is AFTER you try to start the car and give up, there is a high pitched noise coming from the throttle body that only quits when you either unplug the throttle body or cycle the key. The battery isn't low either as I have been keeping a charger on it.

Also, my final question, since this car does NOT have the immobilizer, if I get a used ecu that came out of a 09 automatic with no immobilizer does it still need to be programmed?

Not really. The only reason to reprogram it is if your state does OBD emissions, where they plug into the car and expect it to respond with its proper VIN.