802-00165 PFM001 (SMC), NCD001 (camera), PPN001 (power management system), fan @ 100%, after liquid ingress

[joshAU]

Hi all.
820-00165-A (Macbook air A1466) with liquid ingress.

Errors:
PFM001 (SMC)
NCD001 (camera)
PPN001 (power management system)
while running Apple diagnostics

Fan @ 100% when operational.

After liquid ingress around keyboard connector area and near WLAN card. (see photo)
A tiny amount was near U5000 as well, none under, but two tiny spots, near L5001 and R5100. (see photo)

I removed the logic board and cleaned.
No signs of damage, some corrosion that was cleaned off.
Reset SMC/PRAM a few times.
Customer doesn't use camera (taped over), and system seems to be running OK, i.e. not slow, and I could put on SSD Fan Control to control fan, but would prefer a proper fix, if you have any suggestions?

Reflow SMC?

Thanks for any help you can provide.

 

[2informaticos]

SMC must be reballed when detect corrosion on its area.

First try disconnecting webcam; if works good, there is a problem with ALS.
Second step, test with known good trackpad flex/board.
Also LIO board has a thermal sensor; so, if needed, try another LIO flex/board.

 

[joshAU]

Thanks for your advice 2informaticos.
Sorry for the delay.
The customer never used the webcam, and was happy enough to take it as it was, as they are planning on replacing it soon anyway, so I put on SSDFanControl and let it go at that.