Power Seat Button Test?

   #1  

manicslothpdx

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I retrofitted power/heated/memory seats into my MK4 Jetta a couple years ago. Unfortunately, the driver's seat keeps going dead every few months.

VCDS intermittently shows a code for the memory module, but I am now (potentially) on my 4th module if it needs to be replaced.

As a troubleshooting step, I was wondering if there was a way via VCDS to test the functionality of the button panel on the driver's seat as you can do with the stalks and pedals.

Here are back to back scans, the 2nd one after clearing the codes. Some of the codes in the 1st scan were after ignition repair due to someone trying to steal my car:


Code:
Wednesday,30,November,2022,16:18:09:56514
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 22.10.0.1 (x64)  HEX-NET2 CB: 0.4623.4
Data version: 20221026 DS344.0
www.Ross-Tech.com


VIN: 3VWSR69M34M106546   License Plate:
Mileage: 301740km-187492mi   Repair Order:



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


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: 301740km-187492miles
-------------------------------------------------------------------------------
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 EDC G000SG  3791
   Revision: 12345678    Serial number: VWZ7Z0D9018356
   Coding: 0150031
   Shop #: WSC 01838 256 00064
   VCID: 270095A013F0D8138A8-5184
   VINID: 0E69E388625D0C474100614418462124DC

No fault code found.
Readiness: 0 0 0 0 1

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 1C0-907-37x-ESP-A.lbl
   Part No: 1C0 907 379 P
   Component: ESP ALLRAD MK60     0101
   Coding: 0023049
   Shop #: WSC 31414 000 00000
   VCID: 372045E0C35048931A8-5184

1 Fault Found:
00778 - Steering Angle Sensor (G85)
            003 - Mechanical Failure - Intermittent

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 3Bx-907-044.lbl
   Part No: 3B1 907 044 C
   Component: CLIMATRONIC     C 2.0.0
   Coding: 11200
   Shop #: WSC 31414
   VCID: 21148BB878D42623C4C-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 #: WSC 00066
   VCID: 270095A016F0D8138A8-513C

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 #: WSC 00050
   VCID: 31347BF8283496A354C-513C

   Subsystem 1 - Part No: Clusters
   Component: By Litke     VWZ7Z0D9018356
   Clusters By Litke     VWZ7Z0D9018356

3 Faults Found:
01128 - Immobilizer Pickup Coil (D2)
            35-10 - - - Intermittent
01176 - Key
            07-10 - Signal too Low - Intermittent
01335 - Drivers Seat/Mirror Position Control Module (J543)
            49-00 - No Communications

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.clb
   Part No: 6N0 909 901
   Component: Gateway K<->CAN    0001
   Coding: 00006
   Shop #: WSC 31050
   VCID: 70B2BEFCE3BEDFAB1B2-513C

1 Fault Found:
01335 - Drivers Seat/Mirror Position Control Module (J543)
            49-00 - No Communications

-------------------------------------------------------------------------------
Address 22: AWD        Labels: 02D-900-554.lbl
   Part No: 02D 900 554 UM
   Component: HALDEX 151  ECC     0002
   VCID: 7F506DC0AEE0B0D3928-4B1E

1 Fault Found:
00526 - Brake Light Switch (F)
            27-10 - Implausible Signal - Intermittent

-------------------------------------------------------------------------------
Address 29: Left Light        Labels: 7M3-907-391-29.lbl
   Part No: 7M3 907 391
   Component: EVG GDL + AutoLWR   0003
   Coding: 00004
   Shop #: WSC 00000
   VCID: 74BAB2EC97A6E38BFFA-4B9A

No fault code found.

-------------------------------------------------------------------------------
Address 39: Right Light        Labels: 7M3-907-391-39.lbl
   Part No: 7M3 907 391
   Component: EVG GDL + AutoLWR   0003
   Coding: 00004
   Shop #: WSC 00000
   VCID: 74BAB2EC97A6E38BFFA-4BBA

1 Fault Found:
01533 - Terminal 56 (High Beams)
            32-10 - Resistance Too High - Intermittent

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 1C0-959-799.lbl
   Part No: 1C0 959 799 C
   Component: 1H Komfortgerát HLO 0003
   Coding: 00259
   Shop #: WSC 00222
   VCID: 372045E0C65048931A8-4B1E

   Subsystem 1 - Part No: 1C0959801B
   Component: 17 Tőrsteuer.FS KLO 0202

   Subsystem 2 - Part No: 1C0959802C
   Component: 17 Tőrsteuer.BF KLO 0202

   Subsystem 3 - Part No: 1C0959811A
   Component: 1H Tőrsteuer.HL KLO 0202

   Subsystem 4 - Part No: 1C0959812A
   Component: 1H Tőrsteuer.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 #: WSC 01266
   VCID: 2C0A6A8C0F16FB4B67A-5160

No fault code found.

End----(Elapsed Time: 04:26, VBatt start/end: 11.9V/11.8V. VIgn 11.8V)-----


Address 01: DTCs cleared

Code:
Wednesday,30,November,2022,16:30:21:56514
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 22.10.0.1 (x64)  HEX-NET2 CB: 0.4623.4
Data version: 20221026 DS344.0
www.Ross-Tech.com


VIN: 3VWSR69M34M106546   License Plate:
Mileage: 301740km-187492mi   Repair Order:



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


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: 301740km-187492miles
-------------------------------------------------------------------------------
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 EDC G000SG  3791
   Revision: 12345678    Serial number: VWZ7Z0D9018356
   Coding: 0150031
   Shop #: WSC 01838 256 00064
   VCID: 270095A013F0D8138A8-5184
   VINID: 0E69E388625D0C474100614418462124DC

No fault code found.
Readiness: 0 0 1 1 1

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 1C0-907-37x-ESP-A.lbl
   Part No: 1C0 907 379 P
   Component: ESP ALLRAD MK60     0101
   Coding: 0023049
   Shop #: WSC 31414 000 00000
   VCID: 372045E0C35048931A8-5184

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 3Bx-907-044.lbl
   Part No: 3B1 907 044 C
   Component: CLIMATRONIC     C 2.0.0
   Coding: 11200
   Shop #: WSC 31414
   VCID: 21148BB878D42623C4C-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 #: WSC 00066
   VCID: 270095A016F0D8138A8-513C

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 #: WSC 00050
   VCID: 31347BF8283496A354C-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 #: WSC 31050
   VCID: 70B2BEFCE3BEDFAB1B2-513C

No fault code found.

-------------------------------------------------------------------------------
Address 22: AWD        Labels: 02D-900-554.lbl
   Part No: 02D 900 554 UM
   Component: HALDEX 151  ECC     0002
   VCID: 7F506DC0AEE0B0D3928-4B1E

No Faults Found
  or DTCs not supported by controller
  or a communication error occurred

-------------------------------------------------------------------------------
Address 29: Left Light        Labels: 7M3-907-391-29.lbl
   Part No: 7M3 907 391
   Component: EVG GDL + AutoLWR   0003
   Coding: 00004
   Shop #: WSC 00000
   VCID: 74BAB2EC97A6E38BFFA-4B9A

No fault code found.

-------------------------------------------------------------------------------
Address 39: Right Light        Labels: 7M3-907-391-39.lbl
   Part No: 7M3 907 391
   Component: EVG GDL + AutoLWR   0003
   Coding: 00004
   Shop #: WSC 00000
   VCID: 74BAB2EC97A6E38BFFA-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 #: WSC 00222
   VCID: 372045E0C65048931A8-4B1E

   Subsystem 1 - Part No: 1C0959801B
   Component: 17 Tőrsteuer.FS KLO 0202

   Subsystem 2 - Part No: 1C0959802C
   Component: 17 Tőrsteuer.BF KLO 0202

   Subsystem 3 - Part No: 1C0959811A
   Component: 1H Tőrsteuer.HL KLO 0202

   Subsystem 4 - Part No: 1C0959812A
   Component: 1H Tőrsteuer.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 #: WSC 01266
   VCID: 2C0A6A8C0F16FB4B67A-5160

No fault code found.

End----(Elapsed Time: 04:33, VBatt start/end: 11.8V/11.7V. VIgn 11.7V)-----
 
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   #2  

Uwe

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I believe your seat memory module should should show up at address 36, but I don't see it in either of those scans. Please check through any older scans you've got to see if it ever did show up anywhere.

-Uwe-
 
   #3  

manicslothpdx

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C?ID=319469
I do see Address 36 in some older logs. Is it safe to say the memory module is probably toast?

I am just so confused why they might keep dying. I had a pro wiring guy at a car stereo shop help me originally, and we used a Kufatec retrofit harness made just for this mod. After the first memory module died, we realized we didn't install a thermal fuse that's part of OEM wiring, but we fixed that (and, I checked the other fuse too.) The passenger seat works fine, but I don't think it relies on the memory module. I think it's simpler and is just wired for heat and power.

I guess I will try another module, and then look for any frayed wires or damaged connections.

This was taken from an older log when I was troubleshooting 4Motion issues but I was having no other issues:

Code:
Address 36: Seat Mem. Drvr        Labels: 3B1-959-760.lbl
   Part No: 3B1 959 760 E
   Component: Sitzverstellung     0301
   Shop #: WSC 00000 000 00000
   VCID: 2F2EF032BFC936F766-5160

1 Fault Found:
01008 - Note; Emergency OFF Switch is Active!
            000 - -
 
   #4  

Uwe

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So there switch positions and such can be seen in the MVBs of that module, but that would assume the module talks, which it doesn't seem to at the moment. Still, do try going directly to it to see if it does anything:
[Select]
[36 - Seat Mem. Drvr]

Is it safe to say the memory module is probably toast?
I'm not a fan of condemning any module until all other possibilities have been eliminated. Check power(s) and ground(s). Check the other connections, especially CAN and K-Line. Do all this at the module itself.

If your'e on the third module already, I really wonder what might be causing them to fail. Have you opened up any of the failed ones to see if there's anything obvious that caused the failures?

-Uwe-
 
   #5  

manicslothpdx

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C?ID=319469
Sadly, my car was briefly stolen a few weeks ago. Luckily, it was recovered about 1 week later (thank you immoblizer!) but a box of old parts, including the other seat modules, was taken. My VCDS cable was also stolen, which was the main monetary loss other than needing to have the ignition repaired. So, I don't have the other modules to inspect. I just got my replacement VCDS cable today, so I was finally able to start digging into this again.

I have a week-long appointment scheduled with my wiring guy to address a few projects, but it's not until early January. We're going to dig into the seat to see if we can find any smoking guns. I may also just suck it up and buy a new seat module because the ones I have been getting have been used via eBay. But, I don't want to do that until we rule out anything that may be killing them. I am a little worried, though, because I have a couple retrofits that use that module, so in theory, the root cause might not be in the seat itself. I also have added power-folding/heated/memory/auto-dimming sideview mirrors.
 
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