Damaged Haldex/ECU faults?

Hi, I recently bought back my written off 2014 s3 8v and did the repairs with a competent friend, all mechanical as was cat N.
We’ve change the rear diff and axle, replaced all sensors and a wheel bearing in an effort to solve abs light which worked. Installed my original ecu onto the replacement diff, serviced haldex and diff and I am now left with esc and TPMS fault, the parking sensors are no longer working and options to service or customise the AWD HALDEX system is missing from Carista.
I think it’s the ecu on the diff as I’ve heard of these issues before, I am about to remove the ecu and send it off for repair.
Any ideas/help from anyone would be much appreciated.
This is from Carista:


VIN: WAUZZZ8V6FA027219
CAN network gateway
Part #: 5Q0907530T
Component: GW MQB High
Software version: 1188
ASAM/ODX identifier: EV_GatewLear
Coding: [none]
Fault codes:
131599 Manufacturer-specific code



Engine
Part #: 8V0906259A
Component: 2.0l R4 TFSI
Software version: 0002
ASAM/ODX identifier: EV_ECM20TFS0208V0906259A
Coding: [none]
Fault codes:
21388 Manufacturer-specific code
21399 Manufacturer-specific code



ABS
Part #: 5Q0907379L
Component: ESC
Software version: 0471
ASAM/ODX identifier: EV_Brake1UDSContiMK100IPB
Coding: [none]
Fault codes:
08210 Manufacturer-specific code



Power steering
Part #: 3Q0909144F
Component: EPS_MQB_ZFLS
Software version: 5043
ASAM/ODX identifier: EV_SteerAssisMQB
Coding: [none]
[No fault codes]



Steering wheel
Part #: 8V0953521BM
Component: Lenks. Modul
Software version: 0110
ASAM/ODX identifier: EV_SMLSKLOMQB
Coding: [none]
[No fault codes]



Airbags
Part #: 5Q0959655N
Component: AirbagVW20
Software version: 0361
ASAM/ODX identifier: EV_AirbaVW20SMEVW37X
Coding: [none]
[No fault codes]



Instrument cluster
Part #: 8V0920971J
Component: KOMBI
Software version: 4291
ASAM/ODX identifier: EV_DashBoardVDDMQBAB
Coding: 278D08022B8026000101EA001000000000000000 (hex)
[No fault codes]



Infotainment system
Part #: 8V0035874B
Component: MU-S-ND-ER
Software version: 0420
ASAM/ODX identifier: EV_MUStd4CPASE
Coding: [none]
Fault codes:
01543 Manufacturer-specific code



Headlight aiming
Part #: 5Q0907357
Component: LWR-ECU
Software version: 0080
ASAM/ODX identifier: EV_HeadlRegulVWLWRMQB
Coding: [none]
[No fault codes]



Heater & air conditioning
Part #: 8V0820043D
Component: AC Automat
Software version: 0052
ASAM/ODX identifier: EV_AirCondiFrontVaAU37X
Coding: [none]
[No fault codes]



Parking/steering assist
Part #: 5Q0919294J
Component: PARKHILFE 8K
Software version: 0051
ASAM/ODX identifier: EV_EPHVA18AU3700000
Coding: [none]
Fault codes:
13637426 Manufacturer-specific code



Central electronics
Part #: 5Q0937084AJ
Component: BCM MQBAB H
Software version: 0134
ASAM/ODX identifier: EV_BCMCONTI
Coding: [none]
Fault codes:
197644 Manufacturer-specific code
526359 Manufacturer-specific code



Driver's door
Part #: 5Q0959593B
Component: TSG FS
Software version: 0025
ASAM/ODX identifier: EV_DCUDriveSideEWMAXKLO
Coding: 00308E200001040000001002 (hex)
[No fault codes]



Front passenger's door
Part #: 5Q0959592B
Component: TSG BFS
Software version: 0025
ASAM/ODX identifier: EV_DCUPasseSideEWMAXKLO
Coding: 003086204001040000001002 (hex)
Fault codes:
65604 Manufacturer-specific code



Structure-borne sound
Part #: 8V0907159
Component: SAS-GEN 2
Software version: 0012
ASAM/ODX identifier: EV_SoundActuaGen2AU64X
Coding: [none]
[No fault codes]

DJAlix said:

I would recommend getting a proper diagnostic scan as no one reading this, including myself, has every fault code memorised and I cannot imagine anyone wanting to spend a good few hours on google.

Click to expand...

I googled them all myself, definitely seems to be haldex, sending it off for repair, I’ll update when reinstalled.
Thanks for your input.