My VW Golf MK4 won't shift out of first or reverse

   #1  

Parzival

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I bought a 2003 VW Golf mk4 auto with a blown gearbox. The car drove but if taken above 40kmh, or driven with any kind of force on the throttle, it would slip into neutral. We did a fuzzy logic reset, which enable it to drive, and reach 120 kmh fairly comfortably. The problem was that when taking off in first gear, putting any pressure on the throttle would cause the car to rev briefly as if in neutral, and then bunny hop. Once the car shifted into second, you could plant your foot and it would take off. The shift from second to third was a bit glitchy, and the car seemed to hesitate more than normal. Third to fourth was also smooth, and all the downshifts worked fine. We thought the glitch in first and third could be attributed to a worn torque converter, troubled solenoids, or a worn clutch. After removing the gearbox and sending it to a gearbox specialist, we established that the torque converter would need a full rebuild, and all the clutch plates were worn. We bought a second hand gearbox and refitted it, but the car now has the same problem in first, only worse, and won't shift out of first. We now have a whole bunch of error codes from the VCDS that we don't know what they mean. Would someone be able to enlighten us as to what the problem might be and how to fix it?

Code:
Wednesday,09,May,2018,15:34:22:11187
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 18.2.0.3 (x64)  HEX-V2 CB: 0.4411.4
Data version: 20180212 DS287.0
www.Ross-Tech.com

VIN: WVWZZZ1JZ3W4XXXXX

Chassis Type: 1J (1J - VW Golf/Bora IV (1998 > 2006))
Scan: 01 02 03 08 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57 75
          76
 
VIN: WVWZZZ1JZ3W4XXXXX   Mileage: 167410km-104023miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 06A-906-033-AVU.lbl
   Part No: 06A 906 033 BL
   Component: SIMOS33 1.6l 2V 00AT4578  
   Coding: 00033
   Shop #: WSC 44300  
   VCID: 6A8ECA0FE56D5267CCC-5184
   WVWZZZ1JZ3W4XXXXX     VWZ7Z0B6581640

1 Fault Found:
16555 - Fuel Trim; Bank 1 
            P0171 - 35-00 - System Too Lean
Readiness: 1010 1101

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 01M-927-733.lbl
   Part No: 01M 927 733 LK
   Component: AG4 Getriebe 01M    4985  
   Coding: 00000
   Shop #: WSC 00000  
   VCID: 045284B7E709A417560-0962

6 Faults Found:
00281 - Vehicle Speed Sensor (G68) 
            03-10 - No Signal - Intermittent
00529 - Engine Speed Signal Missing 
            35-10 -  -  - Intermittent
00652 - Gear Monitoring 
            27-10 - Implausible Signal - Intermittent
00545 - Engine-Transmission Electrical Connection 
            31-10 - Open or Short to Ground - Intermittent
00297 - Gearbox Speed Sensor (G38) 
            03-10 - No Signal - Intermittent
01314 - Engine Control Module 
            49-10 - No Communications - Intermittent

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 1C0-907-37x-ABS.lbl
   Part No: 1C0 907 379 L
   Component: ABS FRONT MK60      0101  
   Coding: 0001025
   Shop #: WSC 01271 785 00200
   VCID: 3330176BF727D3AFBFA-5184

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
   Part No: 1C0 909 601 
   Component: 1N AIRBAG VW51      0006  
   Coding: 12622
   Shop #: WSC 01271  
   VCID: 5DE491D3242335DF39E-513C

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 1J0-920-xx5-17.lbl
   Part No: 1J0 920 806 C
   Component: KOMBI+WEGFAHRSP VDO V11  
   Coding: 03722
   Shop #: WSC 00000  
   VCID: 2708F33B36FFAF0F132-513C
   WVWZZZ1JZ3W4XXXXX     VWZ7Z0B6581640

1 Fault Found:
01039 - Coolant Temperature Sensor (G2) 
            30-10 - Open or Short to Plus - Intermittent

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.lbl
   Part No: 6N0 909 901 
   Component: Gateway K<->CAN    0001  
   Coding: 00006
   Shop #: WSC 01271  
   VCID: 70BAD867C3B1A8B7828-513C

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 1C0-959-799.lbl
   Part No: 1C0 959 799 
   Component: 1Z Komfortgerát HLO 0002  
   Coding: 00259
   Shop #: WSC 01271  
   VCID: 74B2D477B7A99497660-4B1E

   Subsystem 1 - Part No: 1C2959802A
   Component: 1Z Tõrsteuer.FS KLO 0009  

   Subsystem 2 - Part No: 1C2959801A
   Component: 1Z Tõrsteuer.BF KLO 0009  

   Subsystem 3 - Part No: 1C0959811A
   Component: 1Z Tõrsteuer.HL KLO 0009  

   Subsystem 4 - Part No: 1C0959812A
   Component: 27 Tõrsteuer.HR KLO 0009  

No fault code found.

End----------(Elapsed Time: 05:07, VBatt start/end: 12.3V/12.3V)-----------
 
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   #2  

MasterTommy

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Did you change the whole assembly, or just the box and swapped the mechatronic? Did you perform any basic settings after the swap? Did you clear DTC's before the test drive, or did these pop up just during the test drive?
 
   #3  

Uwe

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There is no "mechatronic" on those old 4-speed transmissions. It's a separate TCU. There aren't any basic settings either aside from learning the kick-down point.

-Uwe-
 
   #4  

Uwe

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We now have a whole bunch of error codes from the VCDS that we don't know what they mean. Would someone be able to enlighten us as to what the problem might be and how to fix it?
These links may be useful:
http://wiki.ross-tech.com/wiki/index.php/00281
http://wiki.ross-tech.com/wiki/index.php/00529
http://wiki.ross-tech.com/wiki/index.php/00652
http://wiki.ross-tech.com/wiki/index.php/00545
http://wiki.ross-tech.com/wiki/index.php/00297
http://wiki.ross-tech.com/wiki/index.php/01314

-Uwe-
 
   #5  

Parzival

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Thankyou for the quick reply Uwe. Would you say that these faults are all issues with the wiring as opposed to the gearbox?
 
   #6  

iichel

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I had a quick look at the wiring diagram, and cannot find any obvious common denominators. Do you have any corrosion or water ingress in the connector?
Is it still operating with the same TCU or is this one replaced?
 
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   #7  

Jack@European_Parts

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Faulty multi-function switch F125 or contaminated harness with battery acid from over charge condition.
 
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