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It should work.

So problem appears only when the airport card receives 3.3V power. Try replacing Q3403 and/or U3404.

The chips from page 57 are simple level shifters, no firmware included. Try to find a LSF0101 from other board.

Replace UD102...

You should get similar reading as 5V_S4_T_USBC.

On some point of T-CON, you should get 50V aprox; near the backlight connector. If not, change the small video cable. BTW, always check in diode mode with red probe connected to ground!

Resolder all components. Then install airport card and isolate 1V5_S0_MINI line (only). Test if starts...

I still suspect overcurrent triggered for 1V5_S0, or 3V3_S0 power rails, once airport card is connected. 3V3_S0 has now good diode mode reading?

Check diode mode to ground at J3300 & JB500 lines; compare with good board. S-UEM2 tool can help you.

Resolder Q3470 and remove C3430/1; test again.

Can you load macOS with charger alone? Check diode mode to ground at SCL/SDA lines of UD102/50 chips.

There are more components connected. U3200 and U2890 are the first suspects. You can try first to remove the two filter caps.

We don't have certainly information about latest MacBooks and SN25A23 replacement. BTW, Master Liu replied me and said he doesn't actually have the required chips.

New lid sensor can be automatically calibrated by macOS Tahoe. However it should not be involved in the battery issue. Just for test, short to ground SYS_DETECT_L line.

"U3100 and UB400 remain off" Do you mean black screen on the meter?

Remove Q3470 and test again.

You have a low value on 1V5_S0 power rail. Not too low, corresponding power supply can still work; even with CPU connected. When you connect the airport card, overcurrent mode is triggered for that power supply. Small current increased caused by airport card consumption, I suppose...

Check diode mode to ground at J0401; compare with good machine. Also check all the resistors related with SPI_TOUCHID lines; RT0401/3/10-13.

There must be NAND internal failure.

You should replace the NANDs then...