The LN board definitely will need to be programmed so if the original isn’t bad, use it. I would replace the pico fuses with the correct size if you were blowing F3 on the CNWI from a bad L24 card. If the up valve outputs (VC4A & VC4B) are high but the up fast coil isn’t magnetized, first is put a meter across the coil (CNWI Con17 pins 7 to 8) to see if it has voltage (coil could be open). If no voltage you’re going to need the “Motor and Valve Control” page of the print and a meter. Read AC voltage from ground to 122 (source) then 131 (after the DLT relay) then 134 ( should have voltage there if you have it at 134) then Con16-7 on the 188e. Give it an up high speed run and check from ground to Con16-8 (after the 2 valve coil relays on the 188e K7 and K8). If you have voltage there, leave one lead of your meter there and move the ground lead to the TSL2 relay 11/14 contact. If you aren’t getting ground through there, either TSL2 relay is not picked or it’s 11/14 contact is bad. If you didn’t have voltage past the K7 & K8 relay at Con16-8 on the 188e it’s probably a bad contact on one of those relays. You can put the car on inspection and inject VC4A, you should hear K7 relay pick. Inject VC4B, you should hear K8 pick. If they both pick but you don’t get voltage through them, replace them.
