2Q0 907 572 AA Cruise Control to ACC retrofit - Ibiza 2022

[Draganuta]

The steps are:
- downgrade FW from 0396 to P380;
- flash X381 firmware with Component Protection active/ static;

After removing Component Protection, I obtained Public key A6 2C 69 and activated:
- 10009006 MRR package 6: ACChigh (basic ACC) + FrontAssist incl. CityANB
- 10009301 AWV function extension package "EmergencyAssist"
(with 10009205 AWV pronunciation "AWV1,2,3, vFGS, vRFS" came from the factory).

Now I have errors on Engine, ABS and Auto Dist. Reg that I can't solve.
I don't know how to code ABS for ACC/ nor the cause of the errors on ACC (probably wrong coding)?

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: Malfunction 0010
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
10-Park/Steer Assist -- Status: OK 0000
13-Auto Dist. Reg -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
75-Telematics -- Status: OK 0000
A5-Frt Sens. Drv. Assist -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (2D2D2-DLAA)       Labels: None
   Part No SW: 05C 906 032 L    HW: 05C 907 394 D
   Component: R3 1.0l TFS   H01 1701 
   Revision: 42101001   
   Coding: 0125001223240D0800000000000000000000000000000000
   Shop #: WSC 00049 770 00158
   ASAM Dataset: EV_ECM10TFS03005C906032L 002012
   ROD: EV_ECM10TFS030_AU27.rod
   VCID: 2802975D827EA36AA73-807C
   VINID: 9A38EAAAA6DAA9E88104424804EAE1CA60

1 Fault Found:
38437 - Check Coding of ECUs on Powertrain Data Bus
          P1647 00 [10100111] - -
          [Checking coding/versions ofin powertrain]
          MIL ON - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 23006 km
                    Date: 2026.05.08
                    Time: 13:34:09

                    Engine speed: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 86 °C
                    Intake air temperature: 68 °C
                    Ambient air pressure: 990 mbar
                    Voltage terminal 30: 12.085 V
                    Unlearning counter according OBD: 40
                    Normed load value: 0.0 %
                    Ignition timing adjustment cylinder 1: 0.0 Degrees
                    O2 sens. 1 bank 1 upstrm oxi cat: raw value: 1.000 counts
                    Primary injection: quantity setpoint: 0.00 mg/stroke
                    Fuel high pressure sensor: actual value: 191.8 bar
                    O2 sen. bank 1 dwnstrm oxi cat: elec. corrected Urie sen. value: 0.465 V
                    IN_Injection_speed: 0.00 /min
                    Camshaft adjustment: exhaust: bank 1: actual value: 0.0 °
                    Camshaft adjustment intake bank 1: actual value: 0.0 °
                    Throttle valve position (absolute): 12.2 %
                    Setpoint generation interior torque: 0.0 Nm
                    Battery voltage: 12.085 V
                    Accelerator pedal travel: raw value: 0.00 %
                    Control Module temperature: 15.0 °C
                    Engine oil temperature: 75.9 °C

Readiness: N/A

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 2Q0-614-517.clb
   Part No SW: 2Q0 614 517 AP    HW: 2Q0 614 517 N
   Component: ESC_base_vFGS H23 0262 
   Serial number: 08509209220427
   Coding: 520D4C5735424AB13205AC1E34DB22A649124D06226A245844541255452C44659248B2604456241A222A48AAA249D7433F92EBC2FC242424242424
   Shop #: WSC 00049 770 00135
   ASAM Dataset: EV_Brake1BOSCHESPMQBA0 005001
   ROD: EV_Brake1BOSCHESPMQBA0_005_VW27.rod
   VCID: 7CAA9B0D2666DFCA93B-8028

1 Fault Found:
1152 - Databus
          U1121 00 [00001000] - Missing Message
          [ComScl_ACC_10_Timeout]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 40
                    Mileage: 23006 km
                    Date: 2026.05.08
                    Time: 12:51:37

-------------------------------------------------------------------------------
Address 13: Auto Dist. Reg (J428)       Labels:| 2Q0-907-572.clb
   Part No SW: 2Q0 907 572 AA    HW: 2Q0 907 572 D
   Component: ACCCONTIMQB   H09 0396 
   Dataset Number: V03935353SU 0004
   Coding: 3005674240FF8748949C812580508700000000000000000004
   Shop #: WSC 69905 136 139810
   ASAM Dataset: EV_ACCMRRCONTIVW376 003018
   ROD: EV_ACCMRRCONTIVW376_003_VW27.rod
   VCID: 44DA23ED1E16670AABB-8010

8 Faults Found:
1127 - Databus
          U1121 00 [00001001] - Missing Message
          [FAULT_TIMEOUT_PSD_04]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 4
                    Reset counter: 13
                    Mileage: 23006 km
                    Date: 2026.05.08
                    Time: 13:12:10

                    Voltage terminal 15: 14.4 V
                    Control Module temperature: 71 °C
                    Vehicle speed: 0.00 m/s
                    Longitudinal acceleration: -0.03 m/s²
                    Adaptive distance regulation: status: ACC_irreversible error

1218 - Databus
          U1121 00 [00001001] - Missing Message
          [FAULT_TIMEOUT_PSD_05]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 4
                    Reset counter: 13
                    Mileage: 23006 km
                    Date: 2026.05.08
                    Time: 13:12:10

                    Voltage terminal 15: 14.4 V
                    Control Module temperature: 71 °C
                    Vehicle speed: 0.00 m/s
                    Longitudinal acceleration: -0.03 m/s²
                    Adaptive distance regulation: status: ACC_irreversible error

1219 - Databus
          U1121 00 [00001001] - Missing Message
          [FAULT_TIMEOUT_PSD_06]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 4
                    Reset counter: 13
                    Mileage: 23006 km
                    Date: 2026.05.08
                    Time: 13:12:09

                    Voltage terminal 15: 14.4 V
                    Control Module temperature: 71 °C
                    Vehicle speed: 0.00 m/s
                    Longitudinal acceleration: -0.03 m/s²
                    Adaptive distance regulation: status: ACC_irreversible error

2109 - Databus
          U1123 00 [00001000] - Received Error Message
          [FAULT_AWV_CONSISTENCY_FAIL]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 4
                    Fault Frequency: 1
                    Reset counter: 53
                    Mileage: 23006 km
                    Date: 2026.05.08
                    Time: 13:12:09

                    Voltage terminal 15: 14.4 V
                    Control Module temperature: 71 °C
                    Vehicle speed: 0.00 m/s
                    Longitudinal acceleration: -0.03 m/s²
                    Adaptive distance regulation: status: ACC_irreversible error

0928 - Databus
          U1122 00 [00001001] - Implausible Message
          [FAULT_STOPPING_DISTANCE_CONTROL_NOT_AVAILABLE]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 4
                    Reset counter: 13
                    Mileage: 23006 km
                    Date: 2026.05.08
                    Time: 13:12:09

                    Voltage terminal 15: 14.4 V
                    Control Module temperature: 71 °C
                    Vehicle speed: 0.00 m/s
                    Longitudinal acceleration: -0.03 m/s²
                    Adaptive distance regulation: status: ACC_irreversible error

2068 - Databus
          U1123 00 [00001001] - Received Error Message
          [FAULT_TSK_IRREV_FAIL]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 4
                    Reset counter: 13
                    Mileage: 23006 km
                    Date: 2026.05.08
                    Time: 13:12:09

                    Voltage terminal 15: 14.5 V
                    Control Module temperature: 71 °C
                    Vehicle speed: 0.00 m/s
                    Longitudinal acceleration: -0.03 m/s²
                    Adaptive distance regulation: status: ACC_irreversible error

2119 - Databus
          U1122 00 [00001001] - Implausible Message
          [FAULT_TSK_ACC_CODING_PLAUS_FAIL]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 4
                    Reset counter: 13
                    Mileage: 23006 km
                    Date: 2026.05.08
                    Time: 13:12:09

                    Voltage terminal 15: 14.4 V
                    Control Module temperature: 71 °C
                    Vehicle speed: 0.00 m/s
                    Longitudinal acceleration: -0.03 m/s²
                    Adaptive distance regulation: status: ACC_irreversible error

201220 - Control Module Incorrectly Coded
          U1014 00 [00001001] - -
          [FAULT_CODING2SWAP_GRP_AWV_EXTS]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 4
                    Fault Frequency: 1
                    Reset counter: 13
                    Mileage: 23006 km
                    Date: 2026.05.08
                    Time: 13:12:09

                    Voltage terminal 15: 14.4 V
                    Control Module temperature: 71 °C
                    Vehicle speed: 0.00 m/s
                    Longitudinal acceleration: -0.03 m/s²
                    Adaptive distance regulation: status: ACC_irreversible error

 

[serdar_18fr]

The steps are:
- downgrade FW from 0396 to P380;
- flash X381 firmware with Component Protection active/ static;

After removing Component Protection, I obtained Public key A6 2C 69 and activated:
- 10009006 MRR package 6: ACChigh (basic ACC) + FrontAssist incl. CityANB
- 10009301 AWV function extension package "EmergencyAssist"
(with 10009205 AWV pronunciation "AWV1,2,3, vFGS, vRFS" came from the factory).

Now I have errors on Engine, ABS and Auto Dist. Reg that I can't solve.
I don't know how to code ABS for ACC/ nor the cause of the errors on ACC (probably wrong coding)?

There are long coding entries that should be changed accordingly, in Engine, ABS and ACC control units.
Unfortunately they are not always documented or self-explanatory in diagnostics apps.

For example, I have the data in OBD11 from my previous car, a '18 Leon 1.4/125
Its CZCA engine has a "Cruise Control System" entry in long coding->byte 05->bits 6-7, with the possible values of "CC/ACC/ACC with Front Assist".

Also in ABS (HW 5Q0614517AG / SW 5Q0614517CT), again in long coding -> byte 24 -> bits 1-2-3-4 have possible values for a lot of ACC, front assist and emergency braking options.

These are just examples specific to that hardware and the firmware installed on them, the actual bytes & bits are probably different on yours.
You need some research to gather information.
Best bet for you to find a car with the same hardware (and working ACC) and compare the engine, ABS and ACC unit codings.
Or take the car to a retrofitter who knows what they are doing.

P.S: There may also be other units that need coding changes, like steering rack, multimedia and park assist.
Check this page : https://vwcoding.ru/MQB/pACC/#pacc
It contains both standard ACC activation codings and also predictive ACC ones.
It's in Russian but you can use translate feature in the browser.
Not all of them may be applicable for you, for example if you didn't use the swap codes of the predictive ACC,, you can ignore those.

Regards,
Serdar

 

[East Yorkshire Retrofits]

Have you checked your ABS even supports ACC? Many Ibizas do not, unless it has factory ACC

Radar is incorrectly coded
Engine incorrectly coded
ABS incorrectly coded

 

[Draganuta]

I checked in Etka and asked AI. The car has standard Cruise Control (+ Speed Limiter) and ABS 2Q0 614 517 AP and PR code VL6 (Extended and proactive pedestrian and cyclist protection) from the factory.
The problem at this moment is the ABS coding. I can't change the Coding, it always gives the message “Coding rejected, error 31 request out of range”.

 

[serdar_18fr]

The problem at this moment is the ABS coding. I can't change the Coding, it always gives the message “Coding rejected, error 31 request out of range”.

Some bytes in ABS have exact mirrors of each other, to provide some fail-safe mechanism. For example, if you are trying to change a byte to have bits like 00101100, the mirror byte of it should be changed to 00110100 (reverse of it, hence the name "mirror"). Now, I'm not sure whether failing to enter the correct values for the correct mirror byte would cause the error 31, but this might be something worth looking at. For example, in the ABS of that '18 Leon I had mentioned about, the bytes 17 and 24 are mirrors of each other.

 

[Draganuta]

I know. For MK100 with 31 bytes coding is public available, but for MQB A0 ESP with 59 bytes I don't know the solution (and the number of bytes is double).
I need to change a few bits, but which ones?