Thank you FishEH for the detailed pictures.

Paul Grant: Do you still have the ECU's? I would like to buy one from you!

 

I have a couple left. They're $20 a piece with free shipping. They come with the pigtail to help with the wiring. If you'd like one, my PayPal is paulgrant@mac.com. I can get one out right away.
Cheers,
Paul

 

I am going to do a write-up here if it works but I am doing this retrofit without a pigtail by modifying the connector on the AMR 5700 and removing the connector socket from the old board.

But one thing I was hoping someone can confirm:
- On the AMR 5700 what is the pin ordering?

Looking at the 18 pin connector with the board facing upright, the top pins are mounted into the board furthest away from the socket end of the board and the bottom 9 pins are mounted into the board closest to the end of the board. If the same as the old unit, pin 1 would be the bottom left pin and the pin out would be as follows looking at the connector with the board facing up:

10 11 12 13 14 15 16
1 2 3 4 5 6 7 8 9

But no way to assume this is the case....

If some one has the pigtail they could tell me the color of the wires going to a few of the 18 pins and I should be able to figure it out.

Again my references are with circuit board components facing up, not sure how it positions in the black housing.

Thanks!

 

I could have said that easier. I rerealizehe pin out is shown on the black housing but don't know if the board goes in the housing face up or down as I have it ripped apart.