DIY Cruise Control on 07-08 Yaris (step by step)

[frankencar]

Hey guys, I need help! I just spent the afternoon putting in the two-button diy cruise with CTScott's indicator module...seemed like the install went pretty smooth, but it's not working! When I start the car, the indicator light goes on, then off for a quick moment, and then stays on. What could that mean?

I used two buttons (the black radio shack ones) and three 220 Ohm, 1/4 watt resistors in series, for 660 Ohm...should be right in the range, yes?

My first thought is that it is the ECM connection. I ordered the original factory part, Toyota repair terminal, or whatever it's called, and I had a heck of a time putting that thing in. My main problem is that it was a square peg going into a square hole, but first going through a round hole....It was very difficult to line up, and I gently played with it until I got the most secure fit I could, but I'm still not convinced it's in all the way.

Any thoughts?