Re the wiring, I am relatively confident that no wiring changes are needed for my combo of model year and parts. There's a detailed uk-mkivs thread that I found that has a lot of info on the topic.
This is interesting, though: "Occasionally, faulty units have been known to take out comms too, but usually with more than just the haldex, from what I recall."
One thing I didn't mention is that before we installed the 4Motion module and 4Motion G419 sensor, we were able to communicate with the Haldex. This is the first message I got a couple weeks ago before we had to wait for the new G419 sensor. This combo would've been original module and original 2-sensor G419 module.
"I plugged your original module in to test and I have ZERO fault codes. However, AWD still doesn't work. I can however communicate with the AWD module, scan for faults, perform output tests, etc. I can activate the Haldex pump, etc."
The 4Motion module we're using is used. I had a hard time finding one at all. I might be able to buy a new one from a European parts reseller, but it's over $1,000. It could definitely be bad, I guess.
I made the assumption (which may have been incorrect) that since the coding initially shown in changed from 19-something with my module to 23049 with the 4Motion module installed, then that meant it was communicating. What I mean is, when opening to code the 4Motion module, it automatically showed 23049 before we ever tried to re-code it. Maybe that didn't mean as much as I thought.
The following message is what I got a couple weeks ago during the very first attempt to run after installing the 4Motion module. I didn't think too much of this at the time since we hadn't re-coded anything and because we didn't have the correct G419 sensor yet:
"With the module installed that you sent me, the car throws a bunch of fault codes. ESP defective, Steering angle no basic settings, incorrect coding, & AWD no communication. I believe that the module is bad due to the ESP Sensor Unit Defective fault code. With this module installed AWD is not working while driving the car."
However, most of those errors cleared up once we got the new G419 sensor.
I know this data is all over the place. I asked for a followup log today, but I didn't get one. So, the only log I have is the same one I posted yesterday, which is with the used 4Motion module installed, the new G419 sensor installed and an initial attempt at re-coding:
Code:
Wednesday,06,April,2022,09:48:09:49772
-- Windows Based VAG/VAS Emulator Running on Windows 10 x64
Version: 22.3.0.1 (x64) HEX-NET : 0.4613.4
Data version: 20220225 DS336.1
www.Ross-Tech.com
VIN: 3VWSR69M34M106546 License Plate:
Chassis Type: 9M (1J - VW Golf/Bora IV (1998 > 2006))
Scan: 01 02 03 08 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57 75
76
VIN: 3VWSR69M34M106546 Mileage: 300270km-186579miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 038-906-016-BEW.lbl
Part No SW: 038 997 016 L HW: 028 101 114 6
Component: R4 1,9L G000SG 3791
Revision: 12345678 Serial number: VWZ7Z0D9018356
Coding: 0150031
Shop #: 01838 256 00064
VCID: 271EFEB6972F78B7A3-5184
VINID: 0E69E388625D0C474100614418462124DC
No fault code found.
Readiness: 0 0 1 1 1
-------------------------------------------------------------------------------
Address 03: Brakes Labels: 1C0-907-37x-ESP-A.lbl
Part No: 1C0 907 379 P
Component: ESP ALLRAD MK60 0101
Coding: 0023049
Shop #: 31414 000 00000
VCID: 373E2EF6478FE83733-5184
2 Faults Found:
01044 - Control Module Incorrectly Coded
000 - -
01324 - Control Module for All Wheel Drive (J492)
004 - No Signal/Communication
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 3Bx-907-044.lbl
Part No: 3B1 907 044 C
Component: CLIMATRONIC C 2.0.0
Coding: 11200
Shop #: 31414
VCID: 210AE0AEA90B8687ED-51A8
No fault code found.
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 6Q0-909-605-VW5.lbl
Part No: 1C0 909 605 F
Component: 04 AIRBAG VW61 0202 0003
Coding: 12340
Shop #: 00066
VCID: 271EFEB6C72F78B7A3-513C
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 1J0-920-xx5-17.lbl
Part No: 1J5 920 946 C
Component: KOMBI+WEGFAHRSP VDO V20
Coding: 15232
Shop #: 00050
VCID: 312A10EEF9EB36077D-513C
Subsystem 1 - Part No: Clusters
Component: By Litke VWZ7Z0D9018356
Clusters By Litke VWZ7Z0D9018356
No fault code found.
-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels: 6N0-909-901-19.clb
Part No: 6N0 909 901
Component: Gateway K<->CAN 0001
Coding: 00006
Shop #: 01266
VCID: 70ACD5EA32617F0F32-513C
No fault code found.
-------------------------------------------------------------------------------
Address 22: AWD Labels: 02D-900-554.lbl
Part No: 02D 900 554 C
Component: HALDEX LSC ECC 0009
VCID: 200CE5AAA2018F8FE2-4B3C
2 Faults Found:
01316 - Control Module
49-10 - No Communications - Intermittent
01314 - Engine Control Module
49-10 - No Communications - Intermittent
-------------------------------------------------------------------------------
Address 29: Left Light Labels: 7M3-907-391-29.lbl
Part No: 7M3 907 391
Component: EVG GDL + AutoLWR 0003
Coding: 00003
Shop #: 00000
VCID: 74A4D9FA4679432FD6-4B9A
2 Faults Found:
00496 - Sensor for Vehicle Leveling; Front
07-00 - Signal too Low
00497 - Sensor for Vehicle Leveling; Rear
07-00 - Signal too Low
-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr Labels: 3B1-959-760.lbl
Part No: 3B1 959 760 E
Component: Sitzverstellung 0301
Shop #: 00000 000 00000
VCID: 2F2E1696BFDF20F76B-513C
2 Faults Found:
01008 - Note; Emergency OFF Switch is Active!
000 - -
01000 - Motor for Rear Height Adjustment of Driver's Seat (V30)
000 - -
-------------------------------------------------------------------------------
Address 39: Right Light Labels: 7M3-907-391-39.lbl
Part No: 7M3 907 391
Component: EVG GDL + AutoLWR 0003
Coding: 00003
Shop #: 00000
VCID: 74A4D9FA4679432FD6-4BBA
No fault code found.
-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 1C0-959-799.lbl
Part No: 1C0 959 799 C
Component: 1H Komfortgerát HLO 0003
Coding: 00259
Shop #: 00222
VCID: 373E2EF6178FE83733-4B1E
Subsystem 1 - Part No: 1C0959801B
Component: 17 Tõrsteuer.FS KLO 0202
Subsystem 2 - Part No: 1C0959802C
Component: 17 Tõrsteuer.BF KLO 0202
Subsystem 3 - Part No: 1C0959811A
Component: 1H Tõrsteuer.HL KLO 0202
Subsystem 4 - Part No: 1C0959812A
Component: 1H Tõrsteuer.HR KLO 0202
No fault code found.
-------------------------------------------------------------------------------
Address 76: Park Assist Labels: 1J0-919-283.lbl
Part No: 1J0 919 283 A
Component: Einparkhilfe 0001
Coding: 00113
Shop #: 01266
VCID: 2C14019ADEC95BEF4E-513C
No fault code found.
End----(Elapsed Time: 04:11, VBatt start/end: 11.8V/11.6V. VIgn 11.4V)-----