Vw Polo and new used ecu problem

   #1  

V3lmu

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Hey!

That would be one problem I need help with. The car is a Volkswagen Polo, the model year is 2005. The engine runs out and the fault is located in a local car repair shop in the engine control unit. The car repair shop bought a similar control unit from the car dismantling workshop, but this new used engine control unit cannot be adapted to the car according to Ross-Tech's instructions.

- DTCs have been read from the car many times.
- The secret key code of the car has been determined with the vag-tacho program.
- The RIGHT EFFICIENT battery charger has been attached to the car during programming. The voltage has always been over 13 volts
- The car has an old and a new engine control unit in place. Both engine control units give the same Immo code. So does this car have an immobilizer in the instrument cluster?
- The car is able to adjust the engine control unit, after which the keys are adjusted. This also works, but once the keys have been adjusted and the car is turned off, the car will forget the aforementioned adjustments. :mad:

Original ECU, Round 1

Code:
Tuesday,01,September,2020,18:57:01:00464
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 20.4.2.0 (x64)  HEX-V2 CB: 0.4513.4
Data version: 20200730 DS317.0
www.Ross-Tech.com

Dealer/Shop Name: J.P - V3lmu

VIN: WVWZZZ9NZ6D035649   License Plate: VW POLO
Mileage: 171120km-106329mi   Repair Order: vanha ecu - uusin



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


Chassis Type: 9N (9N - VW Polo (2002 > 2010))
Scan: 01 02 03 08 09 15 17 19 25 37 44 45 46 56 76
 
VIN: WVWZZZ9NZ6D035649   Mileage: 171120km-106329miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 036-906-034-APE.lbl
   Part No: 036 906 034 AK
   Component:  MARELLI 4MV        5955  
   Coding: 00071
   Shop #: WSC 31000  
   VCID: 5BE3977B6A359DD3671-4B5C
   WVWZZZ9NZ6D035649     VWZ7Z0E1808797

No fault code found.
Readiness: 1010 0101

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 6R0-907-37x-ABS80.clb
   Part No SW: 6Q0 907 379 AF    HW: 6Q0 907 379 AF
   Component: ABS 8.0 front   H04 0002  
   Shop #: WSC 31414 790 00001
   VCID: 015F8513AD1917035DD-50D0

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

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 6Q0-820-045.lbl
   Part No: 6Q0 820 045 
   Component: Klimaanlage        X0840  
   VCID: 6A8DC2BFB56FF45BEC7-50D0

1 Fault Found:
01317 - Control Module in Instrument Cluster (J285) 
            79-00 - Please Check Fault Codes

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels:. 6Qx-937-049-C.lbl
   Part No: 6Q1 937 049 D
   Component: 00AF BN-SG.         1S34  
   Coding: 26046
   Shop #: WSC 31414  
   VCID: 3C2134E78F7BBAEB4EB-50D0

1 Fault Found:
01314 - Engine Control Module 
            49-10 - No Communications - Intermittent

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
   Part No: 1C0 909 605 K
   Component: 19 AIRBAG VW51 0P   0008  
   Coding: 12601
   Shop #: WSC 31414  
   VCID: 2C0104A77F1B2A6BDEB-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 6Q0-920-xxx-17.lbl
   Part No: 6Q0 920 803 B
   Component: KOMBI+WEGFAHRSP VDO V02  
   Coding: 01141
   Shop #: WSC 00050  
   VCID: 2F3B13AB4E0D5173FB9-50D0
   WVWZZZ9NZ6D035649     VWZ7Z0E1808797

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.lbl
   Part No: 6N0 909 901 
   Component: 0B7L GATEWAY CAN    1S34  
   Coding: 00014
   Shop #: WSC 31414  
   VCID: 70B9D0D793B30E8BA23-50D0

1 Fault Found:
01314 - Engine Control Module 
            49-10 - No Communications - Intermittent

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 6Q0-423-156.clb
   Part No: 6Q0 423 156 AE
   Component: LenkhilfeKYO        V957  
   Coding: 10140
   Shop #: WSC 31414  
   VCID: 72BDDADF9DBF3C9B547-50D0

1 Fault Found:
01314 - Engine Control Module 
            49-10 - No Communications - Intermittent

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 6Q0-959-433.clb
   Part No: 6Q0 959 433 E
   Component: 3F Komfortgerát     0002  
   Coding: 00019
   Shop #: WSC 31414  
   VCID: 3D2739E39461B3E3795-4B3C

No fault code found.

End----(Elapsed Time: 03:14, VBatt start/end: 16.5V/13.9V. VIgn 0.0V)------

Then I reset the DTCs and rescanned original ECU

Code:
Tuesday,01,September,2020,19:01:02:00464
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 20.4.2.0 (x64)  HEX-V2 CB: 0.4513.4
Data version: 20200730 DS317.0
www.Ross-Tech.com

Dealer/Shop Name: J.P - V3lmu

VIN: WVWZZZ9NZ6D035649   License Plate: VW POLO
Mileage: 171120km-106329mi   Repair Order: vanha ecu - uusin 2. kierros


Chassis Type: 9N (9N - VW Polo (2002 > 2010))
Scan: 01 02 03 08 09 15 17 19 25 37 44 45 46 56 76
 
VIN: WVWZZZ9NZ6D035649   Mileage: 171120km-106329miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 036-906-034-APE.lbl
   Part No: 036 906 034 AK
   Component:  MARELLI 4MV        5955  
   Coding: 00071
   Shop #: WSC 31000  
   VCID: 5BE3977B6A359DD3671-4B5C
   WVWZZZ9NZ6D035649     VWZ7Z0E1808797

No fault code found.
Readiness: 1110 0101

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 6R0-907-37x-ABS80.clb
   Part No SW: 6Q0 907 379 AF    HW: 6Q0 907 379 AF
   Component: ABS 8.0 front   H04 0002  
   Revision: 00000000    Serial number: 00000000000000
   Coding: 0002172
   Shop #: WSC 31414 790 00001
   VCID: 015F8513AD1917035DD-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 6Q0-820-045.lbl
   Part No: 6Q0 820 045 
   Component: Klimaanlage        X0840  
   VCID: 6A8DC2BFB56FF45BEC7-50D0

1 Fault Found:
01317 - Control Module in Instrument Cluster (J285) 
            79-00 - Please Check Fault Codes

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels:. 6Qx-937-049-C.lbl
   Part No: 6Q1 937 049 D
   Component: 00AF BN-SG.         1S34  
   Coding: 26046
   Shop #: WSC 31414  
   VCID: 3C2134E78F7BBAEB4EB-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
   Part No: 1C0 909 605 K
   Component: 19 AIRBAG VW51 0P   0008  
   Coding: 12601
   Shop #: WSC 31414  
   VCID: 2C0104A77F1B2A6BDEB-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 6Q0-920-xxx-17.lbl
   Part No: 6Q0 920 803 B
   Component: KOMBI+WEGFAHRSP VDO V02  
   Coding: 01141
   Shop #: WSC 00050  
   VCID: 2F3B13AB4E0D5173FB9-50D0
   WVWZZZ9NZ6D035649     VWZ7Z0E1808797

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.lbl
   Part No: 6N0 909 901 
   Component: 0B7L GATEWAY CAN    1S34  
   Coding: 00014
   Shop #: WSC 31414  
   VCID: 70B9D0D793B30E8BA23-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 6Q0-423-156.clb
   Part No: 6Q0 423 156 AE
   Component: LenkhilfeKYO        V957  
   Coding: 10140
   Shop #: WSC 31414  
   VCID: 72BDDADF9DBF3C9B547-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 6Q0-959-433.clb
   Part No: 6Q0 959 433 E
   Component: 3F Komfortgerát     0002  
   Coding: 00019
   Shop #: WSC 31414  
   VCID: 3D2739E39461B3E3795-4B3C

No fault code found.

End----(Elapsed Time: 03:09, VBatt start/end: 13.9V/13.8V. VIgn 0.0V)------

New used engine control unit

Code:
Tuesday,01,September,2020,19:20:05:00464
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 20.4.2.0 (x64)  HEX-V2 CB: 0.4513.4
Data version: 20200730 DS317.0
www.Ross-Tech.com

Dealer/Shop Name: J.P - V3lmu

VIN: WVWZZZ9NZ6D035649   License Plate: VW POLO
Mileage: 171120km-106329mi   Repair Order: uusi käytetty ecu 1. kierros



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


Chassis Type: 9N (9N - VW Polo (2002 > 2010))
Scan: 01 02 03 08 09 15 17 19 25 37 44 45 46 56 76
 
VIN: WVWZZZ9NZ6D035649   Mileage: 171120km-106329miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 036-906-034-APE.lbl
   Part No: 036 906 034 AK
   Component:  MARELLI 4MV       4562  
   Coding: 00071
   Shop #: WSC 00788  
   VCID: 5BE3977B6A359DD3671-4B5C
   WVWZZZ9NZ3Y113150     VWZ7Z0B5727871

1 Fault Found:
17978 - Engine Start Blocked by Immobilizer 
            P1570 - 35-00 - 
Readiness: 1110 0101

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 6R0-907-37x-ABS80.clb
   Part No SW: 6Q0 907 379 AF    HW: 6Q0 907 379 AF
   Component: ABS 8.0 front   H04 0002  
   Revision: 00000000    Serial number: 00000000000000
   Coding: 0002172
   Shop #: WSC 31414 790 00001
   VCID: 015F8513AD1917035DD-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 6Q0-820-045.lbl
   Part No: 6Q0 820 045 
   Component: Klimaanlage        X0840  
   VCID: 6A8DC2BFB56FF45BEC7-50D0

1 Fault Found:
01317 - Control Module in Instrument Cluster (J285) 
            79-00 - Please Check Fault Codes

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels:. 6Qx-937-049-C.lbl
   Part No: 6Q1 937 049 D
   Component: 00AF BN-SG.         1S34  
   Coding: 26046
   Shop #: WSC 31414  
   VCID: 3C2134E78F7BBAEB4EB-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
   Part No: 1C0 909 605 K
   Component: 19 AIRBAG VW51 0P   0008  
   Coding: 12601
   Shop #: WSC 31414  
   VCID: 2C0104A77F1B2A6BDEB-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 6Q0-920-xxx-17.lbl
   Part No: 6Q0 920 803 B
   Component: KOMBI+WEGFAHRSP VDO V02  
   Coding: 01141
   Shop #: WSC 00050  
   VCID: 2F3B13AB4E0D5173FB9-50D0
   WVWZZZ9NZ6D035649     VWZ7Z0E1808797

1 Fault Found:
01177 - Engine Control Unit 
            65-10 - Unauthorized - Intermittent

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.lbl
   Part No: 6N0 909 901 
   Component: 0B7L GATEWAY CAN    1S34  
   Coding: 00014
   Shop #: WSC 31414  
   VCID: 70B9D0D793B30E8BA23-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 6Q0-423-156.clb
   Part No: 6Q0 423 156 AE
   Component: LenkhilfeKYO        V957  
   Coding: 10140
   Shop #: WSC 31414  
   VCID: 72BDDADF9DBF3C9B547-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 6Q0-959-433.clb
   Part No: 6Q0 959 433 E
   Component: 3F Komfortgerát     0002  
   Coding: 00019
   Shop #: WSC 31414  
   VCID: 3D2739E39461B3E3795-4B3C

No fault code found.

End----(Elapsed Time: 03:11, VBatt start/end: 13.6V/13.8V. VIgn 0.0V)------
I then reset the DTCs and rescanned new used engine control unit

Code:
Tuesday,01,September,2020,19:23:59:00464
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 20.4.2.0 (x64)  HEX-V2 CB: 0.4513.4
Data version: 20200730 DS317.0
www.Ross-Tech.com

Dealer/Shop Name: J.P - V3lmu

VIN: WVWZZZ9NZ6D035649   License Plate: VW POLO
Mileage: 171120km-106329mi   Repair Order: uusi käytetty ecu 2. kierros


Chassis Type: 9N (9N - VW Polo (2002 > 2010))
Scan: 01 02 03 08 09 15 17 19 25 37 44 45 46 56 76
 
VIN: WVWZZZ9NZ6D035649   Mileage: 171120km-106329miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 036-906-034-APE.lbl
   Part No: 036 906 034 AK
   Component:  MARELLI 4MV       4562  
   Coding: 00071
   Shop #: WSC 00788  
   VCID: 5BE3977B6A359DD3671-4B5C
   WVWZZZ9NZ3Y113150     VWZ7Z0B5727871

No fault code found.
Readiness: 1110 0101

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 
   VCID: 55F781430C014BA3515-FFFE


-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 6Q0-820-045.lbl
   Part No: 6Q0 820 045 
   Component: Klimaanlage        X0840  
   VCID: 6A8DC2BFB56FF45BEC7-50D0

1 Fault Found:
01317 - Control Module in Instrument Cluster (J285) 
            79-00 - Please Check Fault Codes

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels:. 6Qx-937-049-C.lbl
   Part No: 6Q1 937 049 D
   Component: 00AF BN-SG.         1S34  
   Coding: 26046
   Shop #: WSC 31414  
   VCID: 3C2134E78F7BBAEB4EB-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
   Part No: 1C0 909 605 K
   Component: 19 AIRBAG VW51 0P   0008  
   Coding: 12601
   Shop #: WSC 31414  
   VCID: 2C0104A77F1B2A6BDEB-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 6Q0-920-xxx-17.lbl
   Part No: 6Q0 920 803 B
   Component: KOMBI+WEGFAHRSP VDO V02  
   Coding: 01141
   Shop #: WSC 00050  
   VCID: 2F3B13AB4E0D5173FB9-50D0
   WVWZZZ9NZ6D035649     VWZ7Z0E1808797

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.lbl
   Part No: 6N0 909 901 
   Component: 0B7L GATEWAY CAN    1S34  
   Coding: 00014
   Shop #: WSC 31414  
   VCID: 70B9D0D793B30E8BA23-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 6Q0-423-156.clb
   Part No: 6Q0 423 156 AE
   Component: LenkhilfeKYO        V957  
   Coding: 10140
   Shop #: WSC 31414  
   VCID: 72BDDADF9DBF3C9B547-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 6Q0-959-433.clb
   Part No: 6Q0 959 433 E
   Component: 3F Komfortgerát     0002  
   Coding: 00019
   Shop #: WSC 31414  
   VCID: 3D2739E39461B3E3795-4B3C

No fault code found.

End----(Elapsed Time: 03:05, VBatt start/end: 14.0V/14.0V. VIgn 0.0V)------

The engine control unit with black tape is the original of the car.
https://ibb.co/Z6zBp1x

What to try next? :confused:
 
   #2  

Uwe

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Since the two ECUs still have different VINs and Immo-IDs stored in them, the chances of them really having the same PIN code is about 1 in 10,000. ;)

-Uwe-
 
   #3  

V3lmu

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C?ID=229426
Okay, this is now a misunderstanding of this thing. ECU and immobilizer have their own codes. Is there any tool that can be used to examine ECU pin code? Or is there always a VAG (OEM) workshop trip ahead?
 
   #4  

Uwe

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Is there any tool that can be used to examine ECU pin code?
It depends on the ECU. I'm not aware of any tool that can read PINs from all ECUs (or even all instrument cluster or immobilizer modules).

-Uwe-
 
   #5  

MartinsX

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In situation only ECU is replaced, You need to get both PIN codes: original for this car and from donor ECU (can not be done with VCDS). Next step is to match/pair/adapt donor ECU to Your car like described here (use VCDS for this operation). No need and do not touch key-immo pairing or You will screw up everything...
 
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