I have removed and opened a DQ250 control unit because of:
17140 - Shift Solenoid 2 (N89)
P0756 - 000 - Open or Short to Ground - Intermittent


Several wires seem to have come loose.


Does anyone have any tips or advice on how best to fix this? I wanted to solder the defective areas and not re-bond. But already the gel prevents the solder from sticking to the pads. And with one wire I don't know where it belongs on the board.