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Thread: ECU Recoding from auto transmission to manual

  1. #1
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    ECU Recoding from auto transmission to manual

    I swapped out the auto trans for a manual in my 2000 Jetta. All is good, car runs great; however, it has CEL related to auto trans codes.

    Code:
    VCDS-Lite Version: Release 1.2
    Wednesday, 09 October 2019, 18:34:39:57286
    
    
    Chassis Type: 9M - VW Jetta IV
    Scan: 01,02,03,08,09,15,16,17,19,22,29,35,36,37,39,46,47,55,56,57,75,76
     
    -------------------------------------------------------------------------------
    Address 01: Engine       Labels: Redir Fail!
       Controller: 06A 906 018 JM
       Component: 2.0l R4/2V  MOTR AT V01
       Coding: 00033
       Shop #: WSC 09250
       VCID: 769FBA1D41DF
    No fault code found.
    Readiness: 0110 0101
    
    -------------------------------------------------------------------------------
    Address 02: Auto Trans       Labels: 01M-927-733.LBL
       Controller: 01M 927 733 HM
       Component: AG4 Getriebe 01M    4604
       Coding: 00000
       Shop #: WSC 00000
       VCID: 827756CD9D17
    10 Faults Found:
    00258 -  Solenoid Valve 1 (N88)
                36-00 -  Open Circuit
    00260 -  Solenoid Valve 2 (N89)
                36-00 -  Open Circuit
    00262 -  Solenoid Valve 3 (N90)
                36-00 -  Open Circuit
    00264 -  Solenoid Valve 4 (N91)
                36-00 -  Open Circuit
    00266 -  Solenoid Valve 5 (N92)
                36-00 -  Open Circuit
    00270 -  Solenoid Valve 7 (N94)
                36-00 -  Open Circuit
    00268 -  Solenoid Valve 6 (N93)
                36-10 -  Open Circuit - Intermittent
    00293 -  Multi-function Switch (F125)
                25-00 -  Unknown Switch Condition
    00281 -  Vehicle Speed Sensor (G68)
                03-00 -  No Signal
    00297 -  Gearbox Speed Sensor (G38)
                03-00 -  No Signal
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes       Labels: 1J0-907-37x-ABS.LBL
       Controller: 1J0 907 379 P
       Component: ABS     20 IE CAN  0001
       Coding: 03504
       Shop #: WSC 00066
       VCID: 3E0F623D296F
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags       Labels: 6Q0-909-605-VW5.LBL
       Controller: 6Q0 909 605 A
       Component: 09 AIRBAG VW5       0003
       Coding: 12345
       Shop #: WSC 00066
       VCID: 351D7D111C59
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments       Labels: 1J0-920-xx0-17.LBL
       Controller: 1J0 920 900 K
       Component: A4-KOMBIINSTR. VDO V56 
       Coding: 07242
       Shop #: WSC 00066
       VCID: 2A275E6DC5E7
       IMMO-IDENTNR: VWZ7Z0X1515416       
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway       Labels: 6N0-909-901-19.LBL
       Controller: 6N0 909 901 
       Component: Gateway K<->CAN    0001
       Coding: 00007
       Shop #: WSC 00066
       VCID: F0930C05A3BB
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 35: Centr. Locks       Labels: 1C0-962-258-II.LBL
       Controller: 1C0 962 258 P
       Component: 0J Zentr.Verriegel. 0001
       Coding: 04096
       Shop #: WSC 00066
       VCID: 341B40151723
    1 Fault Found:
    00953 -  Interior Light Time limit
                25-10 -  Unknown Switch Condition - Intermittent
    
    End   --------------------------------------------------------------------------------------------------
    I tried to change the engine coding from 00033 to 00031 using VCDS and I get:
    18020 - engine control module incorrectly coded P1612 - 35-00

  2. #2
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    First off, you need to physically unplug and remove the old transmission computer. Then you can also code the CAN gateway to no longer look for the transmission computer. Current coding being 00007 in address 19 CAN Gateway. Change it to 00006.

    Then try to recode the engine computer and see what happens.

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  4. #3
    Benevolent Dictator Uwe's Avatar
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    I agree with removing the TCU. In addition, the ECU might need a login in order to accept a coding change. Try 01283.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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  6. #4
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    Quote Originally Posted by Uwe View Post
    I agree with removing the TCU. In addition, the ECU might need a login in order to accept a coding change. Try 01283.

    -Uwe-
    Removing the TCU and recoding did it; no more CEL.

    Thanks!

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  8. #5
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    Quote Originally Posted by dl724705 View Post
    Removing the TCU and recoding did it; no more CEL.

    Thanks!
    After driving the car a spell, I get MAF and O2 sensor faults that I did not get before removing the TCM and recoding.

    Autoscan before:

    Code:
    VCDS-Lite Version: Release 1.2
    Wednesday, 09 October 2019, 18:34:39:57286
    
    
    Chassis Type: 9M - VW Jetta IV
    Scan: 01,02,03,08,09,15,16,17,19,22,29,35,36,37,39,46,47,55,56,57,75,76
     
    -------------------------------------------------------------------------------
    Address 01: Engine       Labels: Redir Fail!
       Controller: 06A 906 018 JM
       Component: 2.0l R4/2V  MOTR AT V01
       Coding: 00033
       Shop #: WSC 09250
       VCID: 769FBA1D41DF
    No fault code found.
    Readiness: 0110 0101
    
    -------------------------------------------------------------------------------
    Address 02: Auto Trans       Labels: 01M-927-733.LBL
       Controller: 01M 927 733 HM
       Component: AG4 Getriebe 01M    4604
       Coding: 00000
       Shop #: WSC 00000
       VCID: 827756CD9D17
    10 Faults Found:
    00258 -  Solenoid Valve 1 (N88)
                36-00 -  Open Circuit
    00260 -  Solenoid Valve 2 (N89)
                36-00 -  Open Circuit
    00262 -  Solenoid Valve 3 (N90)
                36-00 -  Open Circuit
    00264 -  Solenoid Valve 4 (N91)
                36-00 -  Open Circuit
    00266 -  Solenoid Valve 5 (N92)
                36-00 -  Open Circuit
    00270 -  Solenoid Valve 7 (N94)
                36-00 -  Open Circuit
    00268 -  Solenoid Valve 6 (N93)
                36-10 -  Open Circuit - Intermittent
    00293 -  Multi-function Switch (F125)
                25-00 -  Unknown Switch Condition
    00281 -  Vehicle Speed Sensor (G68)
                03-00 -  No Signal
    00297 -  Gearbox Speed Sensor (G38)
                03-00 -  No Signal
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes       Labels: 1J0-907-37x-ABS.LBL
       Controller: 1J0 907 379 P
       Component: ABS     20 IE CAN  0001
       Coding: 03504
       Shop #: WSC 00066
       VCID: 3E0F623D296F
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags       Labels: 6Q0-909-605-VW5.LBL
       Controller: 6Q0 909 605 A
       Component: 09 AIRBAG VW5       0003
       Coding: 12345
       Shop #: WSC 00066
       VCID: 351D7D111C59
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments       Labels: 1J0-920-xx0-17.LBL
       Controller: 1J0 920 900 K
       Component: A4-KOMBIINSTR. VDO V56 
       Coding: 07242
       Shop #: WSC 00066
       VCID: 2A275E6DC5E7
       IMMO-IDENTNR: VWZ7Z0X1515416       
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway       Labels: 6N0-909-901-19.LBL
       Controller: 6N0 909 901 
       Component: Gateway K<->CAN    0001
       Coding: 00007
       Shop #: WSC 00066
       VCID: F0930C05A3BB
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 35: Centr. Locks       Labels: 1C0-962-258-II.LBL
       Controller: 1C0 962 258 P
       Component: 0J Zentr.Verriegel. 0001
       Coding: 04096
       Shop #: WSC 00066
       VCID: 341B40151723
    1 Fault Found:
    00953 -  Interior Light Time limit
                25-10 -  Unknown Switch Condition - Intermittent
    
    End   --------------------------------------------------------------------------------------------------
    And after:

    Code:
    VCDS-Lite Version: Release 1.2
    Monday, 14 October 2019, 18:02:57:57286
    
    
    Chassis Type: 9M - VW Jetta IV
    Scan: 01,02,03,08,09,15,16,17,19,22,29,35,36,37,39,46,47,55,56,57,75,76
     
    -------------------------------------------------------------------------------
    Address 01: Engine       Labels: 06A-906-018-JM.LBL
       Controller: 06A 906 018 JM
       Component: 2.0l R4/2V  MOTR HS V01
       Coding: 00031
       Shop #: WSC 09250
       VCID: 769FBA1D41DF
    5 Faults Found:
    16487 -  Mass Air Flow Sensor (G70): Signal too High
                P0103 - 35-00 -   -
    16519 -  Oxygen (Lambda) Sensor B1 S1; Heating Circuit: Malfunction
                P0135 - 35-00 -   -
    16518 -  Oxygen (Lambda) Sensor B1 S1: No Activity
                P0134 - 35-00 -   -
    16496 -  Intake Air Temp. Sensor (G42): Signal too Low
                P0112 - 35-00 -   -
    16523 -  Oxygen (Lambda) Sensor B1 S2: Response too Slow
                P0139 - 35-10 -   - - Intermittent
    Readiness: 0010 0101
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes       Labels: 1J0-907-37x-ABS.LBL
       Controller: 1J0 907 379 P
       Component: ABS     20 IE CAN  0001
       Coding: 03504
       Shop #: WSC 00066
       VCID: 3E0F623D296F
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags       Labels: 6Q0-909-605-VW5.LBL
       Controller: 6Q0 909 605 A
       Component: 09 AIRBAG VW5       0003
       Coding: 12345
       Shop #: WSC 00066
       VCID: 351D7D111C59
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments       Labels: 1J0-920-xx0-17.LBL
       Controller: 1J0 920 900 K
       Component: A4-KOMBIINSTR. VDO V56 
       Coding: 07242
       Shop #: WSC 00066
       VCID: 2A275E6DC5E7
       IMMO-IDENTNR: VWZ7Z0X1515416       
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway       Labels: 6N0-909-901-19.LBL
       Controller: 6N0 909 901 
       Component: Gateway K<->CAN    0001
       Coding: 00006
       Shop #: WSC 00066
       VCID: F0930C05A3BB
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 35: Centr. Locks       Labels: 1C0-962-258-II.LBL
       Controller: 1C0 962 258 P
       Component: 0J Zentr.Verriegel. 0001
       Coding: 04096
       Shop #: WSC 00066
       VCID: 341B40151723
    2 Faults Found:
    00953 -  Interior Light Time limit
                25-10 -  Unknown Switch Condition - Intermittent
    00928 -  Locking Module for Central Locking; Front Driver Side (F220)
                54-10 -  Incorrectly Equipped - Intermittent
    
    End   --------------------------------------------------------------------------------------------------
    Is there something else that needs to be done?

  9. #6
    Benevolent Dictator Uwe's Avatar
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    Check connection(s) to front oxygen sensor?

    Look at the MAF readings in MVB 003.2?

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

  10. #7
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    Quote Originally Posted by Uwe View Post
    Check connection(s) to front oxygen sensor?

    Look at the MAF readings in MVB 003.2?

    -Uwe-
    Problem is the MAF connector is broken



    Where can I get one?

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  12. #8
    Ross-Tech Employee Dana's Avatar
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    There's a VW part number on that connector. Give that number Google search and you should be able to locate the empty housing/connector easily. (You are looking for something like: 1J0 973 775 A)

    If the gold plated terminals or weather tight seals on the wires are damaged VW sells those separately as well.

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  14. #9
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    Or go to junkyard with wire cutters in Your pocket

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  16. #10
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    Quote Originally Posted by Dana View Post
    There's a VW part number on that connector. Give that number Google search and you should be able to locate the empty housing/connector easily. (You are looking for something like: 1J0 973 775 A)

    If the gold plated terminals or weather tight seals on the wires are damaged VW sells those separately as well.
    Order, received and installed the new connector and no more CEL.

    Thanks!

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