Adaptive Cruise retrofit

[Thanhnos]

Hi Kamold,
The full VCDS scan is too large to paste here. Can I send it to you in an email?

[Thanhnos]

Just a massive thank you to Kamold for taking the time to sort out my issues with ACC and Front Assist yesterday. You are an absolute legend!!!

[DerRasendeRoland]

Hi Kamold,
I try to install the ACC-System on my Passat B7 wagon too. But the ABS-hydraulic block won´t accept the coding. I bought, depending on the Information that I found in your thread, the ABS hydro block number with letters AR. Is there an additional step needed before the new code is accepted from the ABS ?

[kamold]

Hi Kamold,
I try to install the ACC-System on my Passat B7 wagon too. But the ABS-hydraulic block won´t accept the coding. I bought, depending on the Information that I found in your thread, the ABS hydro block number with letters AR. Is there an additional step needed before the new code is accepted from the ABS ?

Need some more information - ideally a full VCDS autoscan.

[Exili123]

Hello kamlod, I have also converted a lot of my Passat B6 to B7 and now have the same problem that you described here.

https://www.motor-talk.de/forum/acc-nachruestproblem-t6074218.html

02186 - Motor-ADR interface

How did you get it solved

Samstag,16,Januar,2021,14:32:56:00009

Fahrzeug-Ident.-Nr.: WVWZZZ3CZ9E104633 Kilometerstand: 277050km

-------------------------------------------------------------------------------
Adresse 01: Motorelektronik (CBB) Labeldatei: DRV\03L-906-022-CBA.clb
Teilenummer SW: 03L 906 022 QG HW: 03L 907 309
Bauteil: R4 2,0L EDC F000AG 6212
Revision: 13H01--- Seriennummer: VWZCZ000000000
Codierung: 0050078
Betriebsnr.: WSC 18689 807 682182
VCID: 7AFB47EF35DF50565C-802E


2 Fehlercodes gefunden:
053283 - Steuerger‰t f¸r Abstandsdistanzregelung
U1023 - 000 - Bitte Fehlerspeicher auslesen - Sporadisch
Umgebungsbedingungen:
Fehlerstatus: 00100000
Fehlerpriorit‰t: 6
Fehlerh‰ufigkeit: 1
Verlernz‰hler: 255
Kilometerstand: 276991 km
Zeitangabe: 0
Datum: 2015.06.08
Zeit: 08:18:11


Umgebungsbedingungen:
Drehzahl: 782 /min
Geschwindigkeit: 0.0 km/h
(keine Einheit): 0.00
(keine Einheit): 0.00
(keine Einheit): 3.0
Bin‰rwert: 00000111
(keine Einheit): 0.0


050227 - Abstandsdistanzregelung
U0433 - 000 - unplausibles Signal - Sporadisch
Umgebungsbedingungen:
Fehlerstatus: 00100000
Fehlerpriorit‰t: 2
Fehlerh‰ufigkeit: 1
Verlernz‰hler: 255
Kilometerstand: 277032 km
Zeitangabe: 0
Datum: 2015.06.08
Zeit: 17:18:19


Umgebungsbedingungen:
Drehzahl: 2300 /min
Geschwindigkeit: 118.0 km/h
(keine Einheit): -3.40
(keine Einheit): -2.20
(keine Einheit): 1.0
Bin‰rwert: 00100001
(keine Einheit): 0.0


Readiness: 0 0 0 0 0


-------------------------------------------------------------------------------
Adresse 02: Getriebe Labeldatei: DRV\02E-927-770.clb
Teilenummer SW: 02E 300 043 T HW: 02E 927 770 AJ
Bauteil: GSG DSG AG6 431 1999
Revision: 04743012 Seriennummer: 00000801180745
Codierung: 0000024
Betriebsnr.: WSC 00066 123 12345
VCID: 25414493ECE10FAE41-8070


Kein(e) Fehlercode(s) gefunden.


-------------------------------------------------------------------------------
Adresse 03: Bremsenelektronik Labeldatei:. DRV\3AA-698-109.lbl
Teilenummer SW: 3AA 698 109 N HW: 3AA 614 109 AQ
Bauteil: J104 C2 450M VE9F 0042
Revision: --H07--- Seriennummer: 00000006780851
Codierung: 0116156
Betriebsnr.: WSC 12345 123 12345
VCID: 4487F917079BD6A676-8010


Kein(e) Fehlercode(s) gefunden.


-------------------------------------------------------------------------------
Adresse 13: Distanzregelung Labeldatei: DRV\3AA-907-567.clb
Teilenummer SW: 3AA 907 567 A HW: 3C0 907 567 J
Bauteil: AC201 RDW A 031 0170
Revision: 00031000 Seriennummer: 00000000035098
Codierung: 0010000
Betriebsnr.: WSC 00399 211 80519
VCID: 387F9DE74B538246EA-806C


1 Fehler gefunden:
02186 - Motor-ADR Interface
008 - unplausibles Signal - Sporadisch
Umgebungsbedingungen:
Fehlerstatus: 00101000
Fehlerpriorit‰t: 6
Fehlerh‰ufigkeit: 2
Verlernz‰hler: 199
Kilometerstand: 276991 km
Zeitangabe: 0
Datum: 2015.06.08
Zeit: 08:17:56


Umgebungsbedingungen:
Anzahl: 34

-------------------------------------------------------------------------------
Adresse 16: Lenkradelektronik Labeldatei: DRV\3C0-953-549-SW25.lbl
Teilenummer SW: 3C0 953 549 AJ HW: 3C0 953 549 AJ
Bauteil: J0527 0030
Revision: 00032000 Seriennummer: 3C9953507CR
Codierung: 0201822
Betriebsnr.: WSC 05314 000 00000
VCID: 74E769D717BB262606-8020


Subsystem 1 - Teilenummer: 5K0 959 542 A Labeldatei: DRV\3C8-959-537.CLB
Bauteil: E221__MFL-TAS H07 0013
Codierung: 00000130
Betriebsnr.: WSC 00000


Kein(e) Fehlercode(s) gefunden.


-------------------------------------------------------------------------------
Adresse 17: Schalttafeleinsatz (J285) Labeldatei:| DRV\3C8-920-xxx-17.clb-SRI1
Teilenummer SW: 3AA 920 880 H HW: 3AA 920 880 H
Bauteil: KOMBI H05 0505
Seriennummer: 00000000000000
Codierung: 061F01
Betriebsnr.: WSC 05314 115 12345
ASAM Datensatz: EV_Kombi_UDS_VDD_RM09 A04716
ROD: EV_Kombi_UDS_VDD_RM09_004_VW46.rod
VCID: 387F9DE783538246EA-806C


Kein(e) Fehlercode(s) gefunden.


-------------------------------------------------------------------------------
Adresse 19: Diagnoseinterface (J533) Labeldatei:. DRV\7N0-907-530-V2.clb
Teilenummer SW: 7N0 907 530 BC HW: 7N0 907 530 AN
Bauteil: J533 Gateway H56 1663
Revision: H56 Seriennummer: 060913F1002159
Codierung: 462006
Betriebsnr.: WSC 12345 123 12345
VCID: 72EB6FCFADAF281614-8026


Kein(e) Fehlercode(s) gefunden.


-------------------------------------------------------------------------------
Adresse 25: Wegfahrsperre Labeldatei: DRV\3C0-959-433-25.clb
Teilenummer SW: 3AA 959 799 A HW: 3AA 959 799 A
Bauteil: IMMO 070 0402
Revision: 00070000 Seriennummer: VWZCZ000000000
Betriebsnr.: WSC 32821 003 1048576
VCID: 4683E31F31A7E4B668-8012


Subsystem 1 - Teilenummer: 3C0 905 861 G
Bauteil: ELV 027 0380
3C0905861G ELV 027 0380


Kein(e) Fehlercode(s) gefunden.


-------------------------------------------------------------------------------
Adresse 53: Feststellbremse Labeldatei: DRV\3AA-907-801.clb
Teilenummer SW: 3AA 907 801 H HW: 3AA 907 801 H
Bauteil: J540 EPB4 VW-86594 0010
Revision: H19 Seriennummer: 00000000161378
Codierung: 0022157
Betriebsnr.: WSC 44954 123 92704
VCID: 366393DF41477436F8-8062


Kein(e) Fehlercode(s) gefunden.


------
Adresse A5: Front-/Vorfeldkamera (R242) Labeldatei:| DRV\3Q0-980-65X-A5.clb
Teilenummer SW: 3Q0 980 654 H HW: 3Q0 980 654 A
Bauteil: MQB_B_MFK H04 0272
Seriennummer: 16121511K11511
Codierung: 000408020000040100260045C086A00080000E120000
Betriebsnr.: WSC 00046 000 00000
ASAM Datensatz: EV_MFKBoschMQBB 001001
ROD: EV_MFKBoschMQBB_VW46.rod
VCID: 3C7781F7B76BAE660E-8068


3 Fehlercodes gefunden:
1135153 - Grundeinstellung
B1828 F0 [008] - Laufzeit¸berschreitung
Sporadisch - best‰tigt - gepr¸ft seit letzter Lˆschung
Umgebungsbedingungen:
Fehlerstatus: 00000001
Fehlerpriorit‰t: 4
Fehlerh‰ufigkeit: 1
Verlernz‰hler: 193
Kilometerstand: 276657 km
Datum: 2021.01.04
Zeit: 23:27:30


Steuerger‰tetemperatur: 29 ∞C
Auflentemperatur: 1.5 ∞C
Fahrzeuggeschwindigkeit: 0.00 km/h
Systemlaufzeit: 1186.5 s
Spannung Klemme 15: 12.9 V
mid: 00 1B
Status der Kamera: Systemfehler
Engine_Running_Info: 0
Software_Info_4: 2
Software_Info_3: 7
Software_Info_2: 2
Software_Info_1: 0




Ende----------------------------(Dauer: 03:32)-----------------------------

[kamold]

Modify the ecu software to not log the fault.
If you can get a read of your ECU with something like KESS, MPPS, Galetto etc I can get it modified to remove the ECU side fault which stops the issue from causing a braking disengagement situation.

[Exili123]

thank you for the offer. I have a colleague who I could send an identical ecu to, which he could then read out. Does he have to flash it with KESS again or can I do it with VCP?


why do my post above you just disappear?

[kamold]

If it's read with KESS will need to be written again with KESS most likely. I don't know if VCP can necessarily write a KESS MED9.1 flash read.
As a general rule it's best to use the same tool as was used to read, to do the write. Most ECU tools will correct the ECU checksum at the write step. So if you're checksum is written incorrectly the ECU could be bricked.

The posts looked like duplicates (x3)

[Exili123]

So it will be KESS

I think removing the error code will definitely prevent the ACC from being switched off. However, in this situation the ACC still does not behave as smoothly as the old combination. Since you switched directly to 3AA ACC, the comparison is missing here.


drsedoy from the drive2 forum has had a similar experience and apparently made further adjustments to the ECU. The ACC brakes earlier and the "emergency situation" is practically avoided.


I have a friend who can lend me KESS for some time, so that I first program the DTC code and then deal with other ACC fields in the ECU.

Maybe drsedoy will answer my request and I will get some information.
Maybe drsedoy will answer my request and I will get some information.

[kamold]

The way I understand it, (this is purely speculation), the problem arises when regular ACC braking tries to transition to front assist braking. There is an unexpected command received by (or sent by) the drivetrain controller (the ECU).
This causes the incompatibility fault and disengagement of ACC braking, which is obviously dangerous.
As it is now with the modified ECU software, in this instance the fault code is logged in the ECU, however it does not cause a disengagement, so braking continues. The fault is only noticed if doing a scan.
The fault code itself could be masked in the ECU so that it doesn't log at all.
There may well be a way to modify the MED9.1 so that it operates in the same way as the MED17 in B7 (or EDC for diesel) but the complete answer may be an ECU upgrade.
(Watch this space )

[awef_spb]

vag guru in russia flashed my ecu (2.0 tdi)
no error front assist now


need to change brakes line in dump file

[Rob Tdi]

I just checked with VCDS and I have 3AA 614 109 AF Abs pump. I have a 2012 B7 manual. Is it capable of supporting Adaptive cruise control?

[kamold]

Yes any 3AA abs can be modified to support ACC.
Your ecu aso just be able to however...

Sent from my SM-G960F using Tapatalk

[Rob Tdi]

Can this particular one support it without being modified? And what about the ECU?

Thanks for replying. Your build is class.

[kamold]

Depends on the ECU.
If it's a Bosch med/EDC can probably be unlocked in the software by a tuner.
If it's PCR probably not.

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