EPROM error on T6 roof mounted display after retrofit.

[tallandrew]

I have Activated the remote diesel heater 18 and retro fitted the remote control and the screen 6E which is mounted in the roof. I made a wiring loom to connect the modules into the factory wiring using the VW flow diagrams. I used factory spec for wires and connectors.

After installing the hardware I simply added the screen to the vehicle list in VCDS and flashed the correct firmware on the heater using ODIS E. I then learnt the remote with VCDS.

Everything works but I am getting an EPROM error from the roof display 6E when I scan the car.

I tried flashing the roof module with ODIS E. that didn't help.

I then bought a second module because VCDS and ODIS said the roof module was faulty.

The new roof module 6E shows the exact same problem. I just don't believe i am that unlucky to buy 2 duff roof modules.

I checked my wiring. The bus lines have almost no resistance, the voltage is good and the earth is good.

I am out of ideas and would appreciate some suggestions. I would really like a fault free car scan out of professional pride.


Here is my vehicle scan.

Friday,09,May,2025,17:56:14:46589
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 11 x64
VCDS Version: 25.3.1.1 (x64)  HEX-V2 CB: 0.4671.5
Data version: 20250415 DS365.0
www.Ross-Tech.com


VIN: WV2ZZZ7HZKH142084   License Plate:
Mileage: 93790km-58278mi   Repair Order:



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


Chassis Type: 7H-VN75 (7E0)
Scan: 01 02 03 04 08 09 10 13 14 15 17 18 19 20 22 25 3C 55 5F 61
          69 6E 0B

VIN: WV2ZZZ7HZKH142084   Mileage: 93790km-58278miles

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
10-Park/Steer Assist -- Status: OK 0000
13-Auto Dist. Reg -- Status: OK 0000
14-Susp. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
17-Instruments -- Status: OK 0000
18-Aux. Heat -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
20-High Beam Assist. -- Status: OK 0000
22-AWD -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
3C-Lane Change -- Status: OK 0000
55-Headlight Range -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
61-Battery Regul. -- Status: OK 0000
69-Trailer -- Status: OK 0000
6E-Ctrl Head Roof -- Status: Malfunction 0010
-------------------------------------------------------------------------------
Address 01: Engine (J623-CXEC)       Labels:. 04L-907-309-V2.clb
   Part No SW: 04L 906 056 LS    HW: 04L 907 445 A
   Component: R4 2.0l BTD   H03 6911
   Revision: 23101001  
   Coding: 0025401C436601080000
   Shop #: WSC 00012 790 50316
   ASAM Dataset: EV_ECM20BTD03004L906056LS 004005
   ROD: EV_ECM20BTD03004L906056LR.rod
   VCID: 094B4FB969B21D92D84-805C
   VINID: 9E60AAAAA1D8A9B6011020081062308FA2

No fault code found.
Readiness: N/A

-------------------------------------------------------------------------------
Address 02: Auto Trans (J743)       Labels:. 0BH-927-711.clb
   Part No SW: 0BT 300 012 C    HW: 0BH 927 711 G
   Component: DSG DQ500-7A  H11 5304
   Revision: 00H11V01    CVN: 5F4A9B0C
   Coding: 0014
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_TCMDQ500021 001001
   ROD: EV_TCMDQ500021.rod
   VCID: 2F3FC121B79613A2260-807A

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels: 7E0-907-37x-MK100ESC.clb
   Part No SW: 7E0 907 379 Q    HW: 7E0 907 379 N
   Component: ESC           H06 0133
   Revision: 00000000    Serial number: 61269000000934
   Coding: 617EC098656686808675037EA686619278F700
   Shop #: WSC 00012 790 50316
   ASAM Dataset: EV_Brake1ESCCONTIVN75XGP2 011001
   ROD: EV_Brake1ESCCONTIVN75XGP2_011.rod
   VCID: 40DD929D1A089CDACFA-8014

No fault code found.

-------------------------------------------------------------------------------
Address 04: Steering Angle (G085)       Labels:* 6R0-959-654.clb
   Part No SW: 6R0 959 654     HW: 6R0 959 654
   Component: LENKW.SENSOR  H07 0070
   Serial number: 02051913470271
   Coding: 01
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_LWSKLOVW25X 005001
   ROD: EV_LWSKLOVW25X.rod
   VCID: 7EA12C65207C2A2AFD6-802A

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels:| 7E5-907-040.clb
   Part No SW: 7E0 907 040 AF    HW: 7E0 907 040 AF
   Component: ClimatronicT5 H04 0614
   Revision: 00001K04  
   Coding: 0000000103
   Shop #: WSC 00012 790 50316
   ASAM Dataset: EV_ClimatronicT5 A01718
   ROD: EV_ClimaAutoT5Basis_VN75.rod
   VCID: 678F69015FE68BE22E0-8032

   Slave 1:
   Subsystem 1 - Part No SW: 7E7 907 049 C    HW: 7E7 907 049 C
   Component: Heckbedienung  H11 0303
   Serial number: BHB-0011505190015177

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 7E0-937-BCM-V1.clb
   Part No SW: 7E0 937 090 D    HW: 7E0 937 090 D
   Component: BCM PQ25 Max4 H82 0762
   Revision: B9082001    Serial number: 8602 130191151
   Coding: A0A8393A0A61341293284F606CEB8FD4C094738960CD79603304003F0860
   Shop #: WSC 66305 512 1745559
   VCID: 2C05D62D860068BA032-8078

   Subsystem 1 - Part No: 5K7 955 559 C  Labels: 5K7-955-559.CLB
   Component: RLS 140519 05  50  0106
   Coding: 0228DD

   Subsystem 2 - Part No SW: 7E0 959 801 N    HW: 7E0 959 801 N  Labels: 7E0-959-80X-V2.CLB
   Component: J386__TSG_FT  004 0653
   Serial number: KU0KU009051991294581
   Coding: 0400A1

   Subsystem 3 - Part No SW: 7E0 959 802 R    HW: 7E0 959 802 R  Labels: 7E0-959-80X-V2.CLB
   Component: J387__TSG_BT  005 0653
   Serial number: KU0KU017051991371057
   Coding: 1400A1

   Subsystem 4 - Part No: 7E1 951 172
   Component: DWA-Sensor 00  001 0104
   Coding: 000000

   Subsystem 5 - Part No: 1K0 951 605 F
   Component: LIN BACKUP HO  H01 0009
   Coding: 000000

   Subsystem 6 - Part No: 7E1 951 172
   Component: DWA-Sensor 00  001 0104
   Coding: 000000

   Subsystem 7 - Part No SW: 7E0 959 442 A    HW: 7E0 959 442 A  Labels: 3C8-959-537.CLB
   Component: E221__MFL-MD9  H02 0103
   Serial number: 39190000984040019185
   Coding: B4FFFF

No fault code found.

-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels:| 7E0-919-475.clb
   Part No SW: 7E0 919 475 AA    HW: 7N0 919 475
   Component: PARKHILFE 8K  H06 0212
   Revision: --------    Serial number: 28231906401277
   Coding: 31810C
   Shop #: WSC 00012 790 50316
   ASAM Dataset: EV_VW75XParkAssis8K 001012
   ROD: EV_VW75XParkAssis8K_001_VN75.rod
   VCID: 71BB075961224552704-8024

No fault code found.

-------------------------------------------------------------------------------
Address 13: Auto Dist. Reg (J428)       Labels:| 7N0-907-572.clb
   Part No SW: 7N0 907 572 C    HW: 7E0 907 572
   Component: ACC Bosch PQx H03 0211
   Serial number: 2604190439A4F7 Dataset Number: V03935300XV 0001
   Coding: 00005000FE0779
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_ACCBEGVW361 001006
   ROD: EV_ACCBEGVW361.rod
   VCID: 3631F44548CC226A656-8062

No fault code found.

-------------------------------------------------------------------------------
Address 14: Susp. Elect. (J250)       Labels:. 3C0-907-376.clb
   Part No SW: 3C0 907 376 A    HW: 3C0 907 376
   Component: DAEMPFUNGS-SG H07 0071
   Revision: 00000000    Serial number: 15021901410002
   Coding: 000180
   Shop #: WSC 00012 790 00072
   VCID: 270F29019FE64BE2EE0-8072

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 5K0-959-655.clb
   Part No SW: 7E0 959 655 K    HW: 7E0 959 655 K
   Component: VW10Airbag01R 010 0018
   Revision: --------    Serial number: 003EM0039AX8 Dataset Number: 7E0003V____ 0908
   Coding: 000000000000000000000000000000003152
   Shop #: WSC 00012 790 50316
   ASAM Dataset: EV_AirbaVW10BPAVW12X 001028
   ROD: EV_AirbaVW10BPAVN750.rod
   VCID: 3E21EC6560FCEA2ABD6-806A

   Crash sensor for side airbag: driver side:
   Serial number: 3495ZRB40695OET8KH2H

   Crash sensor for side airbag: passenger side:
   Serial number: 3505ZRB40675LKO851M.

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5K0-920-xxx-17.clb-SRI1
   Part No SW: 7E0 920 871 A    HW: 7E0 920 871 A
   Component: KOMBI         H02 2030
   Serial number: 00000000000000
   Coding: 140F010300
   Shop #: WSC 00012 790 50316
   ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A05736
   ROD: EV_Kombi_UDS_VDD_RM09_005_VW32.rod
   VCID: 280D2A3D9278449AE7A-807C

No fault code found.

-------------------------------------------------------------------------------
Address 18: Aux. Heat (J364)       Labels:| 7E0-963-27X-18.clb
   Part No SW: 7E0 963 272 B    HW: 7E0 963 273 A
   Component: STH-T5GP2     003 0009
   Coding: 5101
   Shop #: WSC 00046 000 00000
   ASAM Dataset: EV_AuxilParkiHeateWOST5G2 001013
   ROD: EV_AuxilParkiHeateWOST5G2.rod
   VCID: 2B07D531838E6F820A8-807E

   Auxiliary heating remote control:
   Subsystem 1 - Part No SW: 3Q0 963 513     HW: 3Q0 963 513
   Component: R64 D208L  004 0401
   Serial number: 00000000000000318238

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 7E0-909-901.clb
   Part No SW: 7E0 909 901     HW: 7E0 937 090 D
   Component: GW-K-CAN TP20 H82 0762
   Revision: B9082001  
   Coding: 04220F
   Shop #: WSC 66305 512 1745559
   VCID: 688D6A3D5278849A27A-803C

No fault code found.

-------------------------------------------------------------------------------
Address 20: High Beam Assist. (J844)       Labels:| 8S0-857-511.clb
   Part No SW: 7E0 857 511 F    HW: 7E0 857 511 C
   Component: FLA           H10 0003
   Revision: AA001001  
   Coding: 040400E200000000000000
   Shop #: WSC 00012 790 50316
   ASAM Dataset: EV_HighBeamAssisAU316 001004
   ROD: EV_HighBeamAssisAU316_VW32.rod
   VCID: 2D03DB29BD9A61B214C-8078

No fault code found.

-------------------------------------------------------------------------------
Address 22: AWD (J492)       Labels:| 0CQ-907-554-V1.clb
   Part No SW: 0AY 907 554 L    HW: 0CQ 525 130 A
   Component: Haldex4Motion H53 7620
   Serial number: HA1-00002.04.19 Dataset Number: v1260x015G0 0000
   Coding: 0505
   Shop #: WSC 00012 790 50316
   ASAM Dataset: EV_AllWheelContrHA1VW37X 002015
   ROD: EV_AllWheelContrHA1VW37X_002_VW36.rod
   VCID: 54F5AECDFE70107A7B2-8000

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
   Part No SW: 5K0 953 234     HW: 5K0 953 234
   Component: IMMO          H02 2030
   Serial number:             
   Coding: 000002
   Shop #: WSC 00012 790 50316
   ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03710
   ROD: EV_Immo_UDS_VDD_RM09_VW32.rod
   VCID: 6A8910354CF4B68A31E-803E

No fault code found.

-------------------------------------------------------------------------------
Address 3C: Lane Change (J769)       Labels:| 5Q0-907-566.clb
   Part No SW: 7E0 907 566 C    HW: 4H0 907 566 F
   Component: SWA Master    H08 0030
   Serial number: 0516178498
   Coding: 030311
   Shop #: WSC 00012 790 50316
   ASAM Dataset: EV_LaneChangAssis 001028
   ROD: EV_LaneChangAssis_VN75.rod
   VCID: 303DC25DAAA80C5A3FA-8064

   Lane change assistance control module 2:
   Subsystem 1 - Part No SW: 7E0 907 568 C    HW: 4H0 907 568 F
   Component: SWA Slave  H08 0030
   Serial number: 0513818263        
   Coding: 030311

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range (J431)       Labels:. 6R0-907-357.clb
   Part No SW: 6R0 907 357 C    HW: 6R0 907 357 B
   Component: AFS-ECU       005 0050
   Revision: --------    Serial number: -------------- Dataset Number: V036000A7E0 0001
   Coding: 0FC2020001000000
   Shop #: WSC 02748 790 50316
   ASAM Dataset: EV_HeadlRegulVWLWRCC 002006
   ROD: EV_HeadlRegulVWLWRCC_VW46.rod
   VCID: 3A29E0757CD4C60A81E-806E

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:| 5G0-035-MIB-STD2.clb
   Part No SW: 5C0 035 680 G    HW: 5C0 035 680 G
   Component: MU-S-ND-ER    H41 0475
   Serial number: VWZAZ2W0863932 Dataset Number: V03935266VJ 0001
   Coding: 06570001BE00000011111101008808031F0100D4002001004F
   Shop #: WSC 00012 790 50316
   ASAM Dataset: EV_MUStd4CTSAT 001022
   ROD: EV_MUStd4CTSAT_VW32.rod
   VCID: 25132309E56A59F2DCC-8070

   Data carrier:
   Subsystem 1 - Part No SW: V03 959 820 CL    HW: -----------
   Component: ECE DL2 23/24  --- 2010
   Serial number: --------------------

No fault code found.

-------------------------------------------------------------------------------
Address 61: Battery Regul. (J840)       Labels:. 1K0-907-534.clb
   Part No SW: 7E0 907 534     HW: 7E0 937 090 D
   Component: Batt.regelung H82 0762
   Serial number: 8602 130191151
   Coding: 330B1A73
   Shop #: WSC 00012 790 00057
   VCID: 688D6A3D5278849A27A-803C

   Subsystem 1 - Part No SW: 4K0 915 181 A    HW: 4K0 915 181 A
   Component: J367-BDMConti  H03 1050
   Serial number: 75885202001904270456

No fault code found.

-------------------------------------------------------------------------------
Address 69: Trailer (J345)       Labels:. 1K0-907-383-V2.clb
   Part No SW: 1K0 907 383 H    HW: 1K0 907 383 G
   Component: Anhaenger     H12 0130
   Revision: 3B001001    Serial number: 00000514871365
   Coding: 410D000103000000
   Shop #: WSC 00012 790 00057
   VCID: 3239C855A4243E4A49E-8066

No fault code found.

-------------------------------------------------------------------------------
Address 6E: Ctrl Head Roof (J702)       Labels:. 7E5-919-037-W2.clb
   Part No SW: 7E5 919 037 J    HW: 7E5 919 037 J
   Component: Dachdisplay   H17 0200
   Revision: 1010013S    Serial number: 575411      
   Coding: 000103
   Shop #: WSC 00012 790 00000
   VCID: 382DFA7D4258D41A77A-806C

1 Fault Found:
16347 - Control Module - EEPROM Error
            014 - Defective
             Freeze Frame:
                    Fault Status: 01101110
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 36855 km
                    Time Indication: 0
                    Date: 2021.11.05
                    Time: 15:29:53


End----------(Elapsed Time: 02:21, VBatt start/end: 14.9V/15.0V)-----------
-------------------------------1 Fault Found-------------------------------

 

[Uwe]

I just don't believe i am that unlucky to buy 2 duff roof modules.

Just out of curiosity, where did you buy these modules?

-Uwe-

 

[2kaa52]

Checksum Error. Doesnt Matter.

 

[tallandrew]

The first one was from a breakers yard here in Germany, I bought some other parts from that guy to retrofit soft close side door, the second module was from an ebay seller in Polland. I could return the second one and buy another one if you think that would help.

The remote switch and receiver were brand new parts from ebay. They are working fine without error.

Often these screen modules are setup to run an air heater as well as the diesel water heater. It is possible that the doner cars had that setup. I don't have the air heater fitted yet.

The software version on the second module is different to the first, they are both from 2018 and the car is from 2019

 

[tallandrew]

I just googled checksum error. so this is when the millage in the module doesn't match the millage in cars speedo. That seems to be the case. The millage on the car and module are different. My next question is how to correct this.

In my previous experience with BMW replacing a module would require the chassis number to be written to the module. With VCDS I simply went to the installation list in 19 CAN gateway module and told the car the 6E module was fitted by ticking the 6E box and pressing the "write the coding" button.

Do i need to open the 6E module with the "security access" button? I have no idea what the password is otherwise i would try this. The use 7 pin button was not available.

 

[tallandrew]

I tried the access code 20103 which seems to cover most modules but it didn't work.

OBD11/VCDS Security Access Codes

Yes, I was told to search. Yes, I did search. 1.5 hours later, I now have 5. Module Code(s) 5--- 20103 9--- 31347 17-- 47115/25327 42-- 19249 Bottom line, we need a list of ALL of them. It should be at the top of the VCDS Sticky thread...

www.vwvortex.com

 

[Dr Sheldon]

Everything works but I am getting an EPROM error from the roof display 6E when I scan the car.

If everything works then leave it alone - walk away ?

 

[Uwe]

I just googled checksum error. so this is when the millage in the module doesn't match the millage in cars speedo.

You think a roof module cares about the mileage in the instrument cluster?

I rather doubt that. If anything, it might care about the VIN of the car it's installed in.

-Uwe-

 

[2kaa52]

I just googled checksum error. so this is when the millage in the module doesn't match the millage in cars speedo. That seems to be the case. The millage on the car and module are different. My next question is how to correct this.

In my previous experience with BMW replacing a module would require the chassis number to be written to the module. With VCDS I simply went to the installation list in 19 CAN gateway module and told the car the 6E module was fitted by ticking the 6E box and pressing the "write the coding" button.

Do i need to open the 6E module with the "security access" button? I have no idea what the password is otherwise i would try this. The use 7 pin button was not available.

Bullshit. Has nothing to do with mileage

 

[tallandrew]

I agree the millage is irrelevant but it looks like a symptom of a module which is not communicating properly.

I feel the module is locked. I would really like the VCDS unlock code. can anyone suggest another one to try?

Or something else to try.

 

[MasterTommy]

Check TSB’s? By manually selecting the model in erwin, not on VIN since your car doesnt have it from the factory. If it really is a ghost DTC there will be a related entry to it in Erwin with either the instruction to disregard the error or an instruction to update it, and to which SW version or potentially different SW part number.

 

[tallandrew]

thanks for the suggestion, I am logged into erwin all it offers me

vehicle repair
vehicle diagnostic
training
further info

If i chose any option it seems to point me towards installing odis S and paying for a geko account. to do a guided repair.

Is this correct, seems over complicated and more like a job for a dealer?

 

[Spacewalker]

reflash via ODIS

 

[tallandrew]

Thanks I tried that with ODIS-E both 7E5919037__0200.sgo and 7E5919037__0165.sgo.

Flashing was sucessful and the module has updated the reflash counter but the eprom error persists

I think it needs to be done with ODIS-S online with Geko to open the security access too. unfortunatly I wasn't able to get ODIS to prompt me for the Geko password. I've not given up yet.

any ideas on password protection?

I tried 20103 80782 12345 before locking the module. lock automatically clears after 20 minuets with the ignition switched on. so I have 3 more goes today.

 

[Spacewalker]

could be many reasons
even wrong connection / srot circuit while accident , liquid damage , or even factory issue and module was dispose off

 

[tallandrew]

I agree its always a risk with used parts which are removed from damaged vehicles. I've always been lucky until now. I bought 2 of these modules and they have very similar EPROM errors on both. I was really surprised the second one is the same. Thats when I suspected my method for adding it to the vehicle was wrong and reached out for help.

No one who has previously done this retro fit reported the EPROM error.

I could check my wiring again but i think if i had short circuited the BUS system there would be errors everywhere. Thats why I am focusing on the coding side of things.

I am getting a price for a new module from VW might be the best answer so I can move on.

Here in Germany its commen that when you sell a car that the buyer turns up with a paint thickness detector and computer. If this error is still in the car i will pay for it one way or another. Thats why leaving it isn't an option, that and professional pride. Also I video'd the whole process for youtube and if it doesn't have a happy ending that will be rubbish although probably realistic.