In any event, it's not a big deal. It will cause you to not pass an emissions check, but that's it.

Experience has shown that if you have one cracked joint on a board, there are others. It is just common with the RCB.

It is clearly possible that by flexing board you introduced another cracked joint. You HAD to have flexed the board taking it out and putting it back in.

Oddly enough, back in the 70's, Motorola build a radio called the "Micor". It was a real step forward, and featured easily-replaceable boards and a easily configurable control head comprised of one or more additional boards. But they missed a few details, the head boards and internal control boards has this weird "thru hole rivet" design that caused bad solder connections to be VERY frequent. It was the only time in 30 years where, if I had to find a bad joint on the board (after finding and fixing the bad one) I'd go thru almost the entire board and reheat and reflow every point.

The RCB in our cars is not THAT bad, but still, when I did mine, I hit every joint on the board.



Ok........... Done editing. YOu can read my post now.