2016 Passat NMS byte 18 coding

Autokorektas · May 17, 2018

Hello members,

I have facelifted 2016 Passat NMS (like b7 US version) with full led headlamps ant tail lamps. Passat came from US, and will be ridden in Europe now, so I had to change some lightening features, to work like Eu cars do. It has PQ35 H++ BCM and Problem is that i messed up byte 18.

My question is: Does anyone have stock values for byte 18 for passat like this one?

And could it be coded for parking ligts to dim from drl, when light switch is on parking light position?

p.s recoded bcm with vag can pro, to get tail lights to work the way I wanted.

Thanks in advance!

Autokorektas · May 19, 2018

Maybe anyone has definitions of 18 byte? I saw somewhere there was a 18byte.pdf, but link is no longer working.

Eric · May 19, 2018

I'm going to effort-match your lack of autoscan

Code:

Address 09: Cent. Elect. (J519)       Labels: 1K0-937-08x-09.clb
   Part No SW: 5K0 937 087 AL    HW: 5K0 937 087 AL
   Component: BCM PQ35 H++  122 0183  
   Revision: BN122001    
   Coding: EF200E38902B08D4084800010400854000F1000640801920E48062000C70
   Shop #: WSC 09003 957 00200
   VCID: 7F41805BEEED00BABA-802A

Autokorektas · May 19, 2018

What's the point of autoscan if byte 18 in PQ35 is masked with 00?

PetrolDave · May 19, 2018

Autokorektas said:
What's the point of autoscan if byte 18 in PQ35 is masked with 00?

So we can see how the car is equipped, because that will affect the correct value in byte 18.

Autokorektas · May 20, 2018

Sorry it wasn't in my first post.

Code:

VIN: 1VWAS7A3XGC044626   License Plate: PASSAT_NMS_2016
Mileage: 26770km-16634mi   Repair Order: 



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


Chassis Type: A3-VW41 (7N0)
Scan: 01 02 03 08 09 15 16 17 19 25 42 44 46 4F 52 5F 61 62 72

VIN: 1VWAS7A3XGC044626   Mileage: 26770km-16634miles

01-Engine -- Status: Malfunction 0010
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: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
4F-Centr. Electr. II -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
61-Battery Regul. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine (J623-CPKA)       Labels:. 06K-907-425-V2.clb
   Part No SW: 06K 906 071 AF    HW: 06K 907 425 C
   Component: R4 1.8l TFS   H13 2360  
   Revision: --H13---    
   Coding: 001A0092242400160000
   Shop #: WSC 09003 957 00200
   ASAM Dataset: EV_ECM18TFS02006K906071AF 001004
   ROD: EV_ECM18TFS02006K906071AF.rod
   VCID: 6FEDA1E7B64ED63CF1-803A

1 Fault Found:
17920 - Cruise Control Switch (E45) 
          P0568 00 [039] - Implausible Signal
          Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 26777 km
                    Date: 2018.05.17
                    Time: 01:29:29

                    Engine speed: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 26 °C
                    Intake air temperature: 26 °C
                    Ambient air pressure: 990 mbar
                    Voltage terminal 30: 12.714 V
                    Unlearning counter according OBD: 40
                    ACC variants (coding): CCS
                    CCS Switch: CCS operating unit
                    Cruise control switch actuation-Main switch: not activated
                    Cruise control switch actuation-Setting: not activated
                    Cruise control switch actuation-Activation: not activated
                    Cruise control switch actuation-Status: OK
                    Cruise control switch actuation-Accelerate: not activated
                    Cruise control switch actuation-Decelerate: not activated
                    Cruise control switch actuation-Cancel: not activated
                    Cruise control switch actuation-Main switch hardware: operated
                    Cruise control switch actuation-Coding: plausible
                    Cruise control switch actuation-Limit function: not selected
                    Cruise control switch actuation-Limit button: not activated
                    Cruise control switch actuation-Main switch CAN: not activated
                    Cruise control switch actuation-Large increment: not activated
                    Cruise control switch actuation-Control component verified: Yes
                    ACC variants: ACC

Readiness: 1110 0101

-------------------------------------------------------------------------------
Address 02: Auto Trans (J217)       Labels:| 09G-927-749-V1.clb
   Part No SW: 09G 927 749 AN    HW: 09G 927 749 AN
   Component: AISIN AG6 G3  129 2969  
   Coding: 000348
   Shop #: WSC 09003 957 00200
   ASAM Dataset: EV_TCMAQ250031 002009
   ROD: EV_TCMAQ250031_002_VW41.rod
   VCID: 0501E34F84F2FC6C2B-8050

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 1K0-907-379-60EC1F.clb
   Part No SW: 1K0 907 379 CC    HW: 1K0 907 379 CC
   Component: ESP MK60EC1   H46 0175  
   Revision: 00H46001    
   Coding: C54BC0F5492600FEA31103E6921F004120100012
   Shop #: WSC 09003 957 00200
   VCID: 75E1938FDC12ECEC3B-8020

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels:| 5K0-907-044.clb
   Part No SW: 561 907 044 AM    HW: 561 907 044 AM
   Component: Climatronic   H07 0910  
   Revision: 00001K04    
   Coding: 0070019002
   Shop #: WSC 09003 957 00200
   ASAM Dataset: EV_ACClimaBHBVW411 A01001
   ROD: EV_ACClimaBHBVW411_VW41.rod
   VCID: 62CBD8D3759C6B546E-8036

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 1K0-937-08x-09.clb
   Part No SW: 5K0 937 087 AL    HW: 5K0 937 087 AL
   Component: BCM PQ35 H++  122 0183  
   Revision: BN122001    
   Coding: EF200E18902B08D4088800010400004800F1000640801D20E48062040C70
   Shop #: WSC 12345 123 12345
   VCID: 7F0D71A7EE2EA6BC61-802A

1 Fault Found:
01506 - Bulb for Rear Fog; Right (L47) 
            010 - Open or Short to Plus
             Freeze Frame:
                    Fault Status: 01101010
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 100
                    Mileage: 26777 km
                    Time Indication: 0
                    Date: 2018.05.17
                    Time: 01:29:45

             Freeze Frame:
                        Term 15 On
                    Voltage: 12.75 V
                        ON
                        ON
                        OFF
                        OFF
                        OFF


-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:* 561-959-655.clb
   Part No SW: 561 959 655     HW: 561 959 655 
   Component: AirbagVW11    001 0207  
   Serial number: 003RXM046AT5
   Coding: 8CCCCC00000000005000001A020800000065
   Shop #: WSC 09003 957 00200
   ASAM Dataset: EV_AirbaVW11SMEVW411 001002
   ROD: EV_AirbaVW11SMEVW411.rod
   VCID: 63C5DDD76A86625C65-8036

   Seat occupied recognition: 
   Subsystem 1 - Part No SW: 4M0 959 339 B    HW: 4M0 959 339 B
   Component: BF-Gewichtss.  H12 0021 
   Serial number: IBH000000000004PTNUS
   Coding: 30324C

   Crash sensor for side airbag: driver side: 
   Subsystem 2 - Part No SW: -----------    HW: 480 002 112 15
   Component: SideSensor_Df  001 0887 
   Serial number: 357000000004E64C781S

   Crash sensor for side airbag: front passenger side: 
   Subsystem 3 - Part No SW: -----------    HW: 480 002 201 16
   Component: SideSensor_Pf  001 0887 
   Serial number: 35800000000B3430881B

   Crash sensor for side airbag: rear: driver side: 
   Subsystem 4 - Part No SW: -----------    HW: 480 021 801 16
   Component: SideSensor_Dr  000 0148 
   Serial number: 3510001A11E8F7F4255B

   Crash sensor for side airbag: rear: passenger side: 
   Subsystem 5 - Part No SW: -----------    HW: 480 021 801 16
   Component: SideSensor_Pr  000 0148 
   Serial number: 3520001C91E7B9A6645J

   Crash sensor for front airbag: driver side: 
   Subsystem 6 - Part No SW: -----------    HW: 480 020 701 16
   Component: FrontSensor_D  000 0189 
   Serial number: 3550001B31DDB596B38M

   Crash sensor for front airbag: front passenger side: 
   Subsystem 7 - Part No SW: -----------    HW: 480 022 212 15
   Component: FrontSensor_P  000 0189 
   Serial number: 3560001B71DDB594628J

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:| 5K0-953-569.clb
   Part No SW: 1K5 953 521 CM    HW: 5K0 953 569 BC
   Component: LENKS.MODUL   018 0230  
   Revision: FF010042    Serial number: 20160109100028
   Coding: 0892440008
   Shop #: WSC 09003 957 00200
   ASAM Dataset: EV_SMLSNGVOLWSR8C 001001
   ROD: EV_SMLSNGVOLWSR8C.rod
   VCID: 7AFB80B3FD0C839456-802E

   Multifunction steering wheel control module: 
   Subsystem 1 - Part No SW: 6C0 959 442 G    HW: 6C0 959 442 G  Labels: 3C8-959-537.CLB
   Component: E221__MFL-TAT  H06 0023 
   Serial number: 0141601363100199BF2B
   Coding: 290000

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5K0-920-XXX-17.clb-SRI1
   Part No SW: 561 920 971     HW: 561 920 971 
   Component: KOMBI         H04 1008  
   Serial number: 00000000000000
   Coding: 231E010000
   Shop #: WSC 09003 957 00200
   ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A05730
   ROD: EV_Kombi_UDS_VDD_RM09_005_VW25.rod
   VCID: 58BFFA3B23C0B18400-800C

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 7N0-907-530-V2.clb
   Part No SW: 7N0 907 530 BF    HW: 7N0 907 530 AM
   Component: J533  Gateway H55 1673  
   Revision:   H55       Serial number: 29021603010066
   Coding: 461020
   Shop #: WSC 09003 957 00200
   VCID: 75E1938FDC12ECEC3B-8020

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          H04 1008  
   Serial number:               
   Coding: 000000
   Shop #: WSC 09003 957 00200
   ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03710
   ROD: EV_Immo_UDS_VDD_RM09.rod
   VCID: 6ADBB0F38DAC3314A6-803E

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:| 3C0-959-70X-GEN4.clb
   Part No SW: 561 959 701 B    HW: 3C0 959 793 H
   Component: TUER-SG FT    002 0637  
   Revision: 13100010    Serial number: 0010311097
   Coding: 0404B5
   Shop #: WSC 09003 957 00200
   ASAM Dataset: EV_TSGFPQ25BRFVW46X A04004
   ROD: EV_TSGFPQ25BRFVW46X.rod
   VCID: 1D31AB2F0C6214AC13-8048

   Slave Driver: 
   Subsystem 1 - Part No SW: 561 959 811 C    HW: 561 959 811 C  Labels: 1K0-959-70X-GEN4.CLB
   Component: J388__TSG_HL  022 1472 
   Serial number: 14102746160304201258
   Coding: 000000

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1K0-909-14x-GEN3.clb
   Part No: 1K0 909 144 R
   Component: EPS_ZFLS Kl. 311    3501  
   Revision: 00H22000    
   Shop #: WSC 01357 011 00200
   VCID: 39795FBF708A488C1F-806C

No fault code found.

-------------------------------------------------------------------------------
Address 4F: Centr. Electr. II (J520)       Labels:. 1K0-907-532.clb
   Part No SW: 7N0 907 532     HW: 7N0 907 530 AM
   Component: EZE_2         H55 1673  
   Revision:   H55       Serial number: 29021603010066
   Coding: 00000008
   Shop #: WSC 09003 957 00200
   VCID: 6FEDA1E7BE4ED63CF1-803A

   Subsystem 1 - Part No SW: 561 919 204 C    HW: 561 919 204 C
   Component: Analoguhr  001 0002 

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:| 3C0-959-70X-GEN4.clb
   Part No SW: 561 959 702 B    HW: 3C0 959 792 H
   Component: TUER-SG BT    002 0637  
   Revision: 15100010    Serial number: 0010314486
   Coding: 0404B4
   Shop #: WSC 09003 957 00200
   ASAM Dataset: EV_TSGBPQ25BRFVW46X A04004
   ROD: EV_TSGBPQ25BRFVW46X.rod
   VCID: 1E33AC2301640FB40A-804A

   Slave Passenger: 
   Subsystem 1 - Part No SW: 561 959 812 C    HW: 561 959 812 C  Labels: 1K0-959-70X-GEN4.CLB
   Component: J389__TSG_HR  022 1472 
   Serial number: 14202747160304191743
   Coding: 000000

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:| 5G0-035-MIB-ENT2.clb
   Part No SW: 561 035 150     HW: 561 035 150 
   Component: MU-E--US      857 6495  
   Serial number: 17121500011833
   Coding: 02140100BE00000041110001001000001F0006D40000010000
   Shop #: WSC 08316 552 00000
   ASAM Dataset: EV_MUEnt4CGen2LGE 001025
   ROD: EV_MUEnt4CGen2LGE_VW12.rod
   VCID: 4A9B1073ED6CD31486-801E

No fault code found.

-------------------------------------------------------------------------------
Address 61: Battery Regul. (J840)       Labels:. 1K0-907-534.clb
   Part No SW: 7N0 907 534     HW: 7N0 907 530 AM
   Component: Batt.regelung H55 1673  
   Serial number: 29021603010066
   Coding: E1200859
   Shop #: WSC 09003 957 00200
   VCID: 71E9A79FA87AC0CCE7-8024

No fault code found.

End-------------------------(Elapsed Time: 02:55)--------------------------

hadez16 · May 28, 2018

Do not touch Byte 18 if it has Hex 00 in it. You cannot go back to the original with VCDS!
This statement is for all other people who read this as you already fixed it with the other tool.

Uwe · May 28, 2018

hadez16 said:
You cannot go back to the original with VCDS!

I don't think that's entirely correct. I think you can go back to the original; the problem is that you have to know what it is, and in many cases, the original value is not known, because it is masked with '00' in the factory configuration.

-Uwe-

hadez16 · May 28, 2018

Based on my humble experience, if there was any valid hexadecimal preset that would fit to your car, it would be there.
Why should VAG use Hex 00 as factory default if there was any other preset that acts as exactly the same?

I'm not aware of any case where Hex 00 could be replaced with any other non-zero value.

Uwe · May 28, 2018

My understanding was that '00' hides/masks the real value..?

-Uwe-

TBAx · May 28, 2018

0x00 tells the BCM to use the configuration stored in the EEPROM, while other values are loaded by other codings. This means changing a previously stored coding of 00 to 76 and then back to 00 means that the configuration stored behind entry 76 is now masked under 00.

I am pretty sure the reason why VAG chooses to do this masking is because the other parameter entries might change between updates. So in one software version 76 could mean Passat with Xenon and LED tail lights while it could mean Skoda Octavia with basic light package in the other.

To prevent issues that would occur upon updating those modules the actual values are stored in the EEPROM and then masked under 00.

However this does not explain why sometimes values other than 00 can be found as it completely annihilates this „feature“...

hadez16 · May 29, 2018

This explanation seems also legit.
My understanding of Byte 18 is the following:

Imagine the EEPROM reserves 4 Bits for your whole lighting configuration (just for illustration).

0000 --> Hex 01 (Golf MK7, Xenon RoW)
0001 --> Hex 02 (Golf MK7, Halogen RoW)
0010 --> Hex 03 (Golf MK7, Halogen NAR)
0011 --> Hex 04 (...)
0100 --> Hex 05 (...)
0101 --> Hex 06
0110 --> Hex 07
0111 --> Hex 08
1000 --> Hex 09
1001 --> not existent as Hex value
1010 --> Hex 0A
1011 --> Hex 0B
1100 --> Hex 0C
1101 --> Hex 0D
1111 --> Hex 0E

Each lighting configuration is stored in some buffer that can be adressed with the Hex values mentioned above (Byte 18 values) and so re-written to EEPROM to take effect when they are coded via VCDS.

But then you have that special car. With that special lighting. VW up! Walter Röhrl Edition.
VAG has no Hex preset for that special lighting pinout (1001) so no predefined hex value does fit.

The result is 1001 hardcoded in your EEPROM and Byte 18 to 0x00.

Changing to non-0x00 will result in the deadlock where you cannot go back to 1001 because there is no preset for this.

This is my understanding of the whole thing.

mtl · Jun 8, 2018

Uwe said:
I don't think that's entirely correct. I think you can go back to the original; the problem is that you have to know what it is, and in many cases, the original value is not known, because it is masked with '00' in the factory configuration.

-Uwe-

I can confirm from first hand that on some cars, you can go back to factory settings with VCDS, though you need to know the factory value hidden behind 00.
If you do not have it, alternative tool must be used.

I also agree with hadez16 that it is best not to touch Byte 18, if you are not 100% sure what you are doing.

Bakhtiyar · Apr 8, 2019

mtl said:
I can confirm from first hand that on some cars, you can go back to factory settings with VCDS, though you need to know the factory value hidden behind 00.
If you do not have it, alternative tool must be used.

I also agree with hadez16 that it is best not to touch Byte 18, if you are not 100% sure what you are doing.

If I test from 00 to FF even I don't find original configuration //////////??????????/ :confused:

TBAx · Apr 8, 2019

As I said.
Can be fixed via EEPROM modification.

2016 Passat NMS byte 18 coding

Autokorektas

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Autokorektas

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Eric

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Autokorektas

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PetrolDave

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hadez16

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Uwe

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Uwe

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