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Thread: 1993 Eurovan - 098 Auto Trans - VCDS scan does not find 02-Auto Trans

  1. #1
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    1993 Eurovan - 098 Auto Trans - VCDS scan does not find 02-Auto Trans

    1993 Eurovan Auto Transmission - 098
    TCM part number - 098927731 B (photos of my TCM)

    Main question - if an Auto-Scan for Chassis type 70 - VW Transporter/Multivan 91-96 (01 Digifant, 02 Auto Trans, 03, 08, 15, 22, 25) only detects the 01-Digifant (no other items detected, especially the 02-Auto Trans), would that typically indicate that the TCM or wiring to the TCM is bad? If it can be something else, what are the other possibilities?

    Background
    On a road trip about 8 years ago, I made the mistake of taking 395 in California/Nevada with my Eurovan loaded heavy. It had a difficult time with the passes. I also had a coolant leak that got worse on the trip, and the transmission got hot enough to melt the Auto Transmission connection wire because it had rested on a part of the trans block.

    The Eurovan went into Limp Mode (stuck in 3rd gear). I made it to Reno, and I went to a local shop that said they'd take a look. They initially couldn't diagnose until finally they discovered the wire melted mess. After exhausting all attempts to find a wire harness, I asked if they could install a set of replacement wires to remove the bad 6" section. It was/is only 10 wires, and the tech successfully repaired it. At first, it didn't seem like it took. But I found that there is an Auto Transmission reset procedure on the 1993 Eurovan, and to my surprise it worked.

    I drove with that repair for nearly 8 years. The wire is a part of a large harness that would be expensive and difficult to replace. Finally, the repair fatigued and corroded. My transmission went weird and I limped (3rd gear) into Transmission Repair shop, and they performed a basic service (fluid, filter). They didn't see anything to indicate damage to the mechanical (shavings were normal).

    I thought maybe I should just find a perfect match portion of wire/connection. I was advised that a 90's Jetta would be a perfect match. So I redid the repair simply matching colors. Once again, something was off. I pinned out again, and it was a match with the 2001. Hmm. Maybe my 1993 Eurovan wire/connector pin out from the hacked repair wire/connector was wrong. I checked and double checked using a voltmeter. There was still a difference from the Jetta and the 2001 Eurovan.

    I could really use an diagram expert with a Bentley to tell me the 1993 Eurovan wire/connector pinouts. Anybody?

    Anyway, I realized that I had been very careless when performing this wire reconnection work. I had left the battery connected, and it is very likely that some wires might have touched and possible shorted.

    With this said, I'm very new to TCM/ECM stuff. I would assume that this could damage the TCM. Am I correct that this is a possibility?

    I ask, because I have previous VCDS scans from my Eurovan where the 098 Auto Transmission - 02 module is detected.
    But now, it doesn't find it. Nothing for 02-Auto Trans.

    It really makes me wonder that my TCM is shot. They aren't very easy to come by (I've seen them advertised for as high as $1000+). I did see that the same part number (but without a B designation) is available from a Passat B3 for a reasonable cost (about $100). I've also seen other TCMs advertised with other letter designations. Yet, I'm curious if that is a simple revision, or an actual design variation.

    I'm in the process of examining my TCM again (located near passenger footwell).

    Any Eurovan Auto Trans TCM/wire/connector 098 experts on here? And know of any compatible other VW models with compatible TCM 098927731?

  2. #2
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    Latest scan

    Code:
    Saturday,01,June,2019,14:53:32:15635
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
    VCDS Version: 19.6.0.2 (x64)  HEX-V2 CB: 0.4505.4
    Data version: 20190529 DS308.0
    www.Ross-Tech.com
    
    
    
    
    
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    
    
    Chassis Type: 70 - VW Transporter/Multivan (1991 > 1996)
    Scan: 01 02 03 08 15 22 25
     
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels: None
       Part No: 023 906 023 A
       Component: DIGIFANT 1.5        1147  
       VCID: 0A4DA178752C9867945-0962
    
    No fault code found.
    Readiness: N/A
    
    End----(Elapsed Time: 01:53, VBatt start/end: 14.2V/14.1V. VIgn 0.0V)------
    Last edited by Uwe; 06-22-2019 at 06:47 PM. Reason: CODE tags

  3. #3
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    Scan from before the more recent rewiring project (possible short). Notice how the 02-Auto Trans is detected

    Code:
    Sunday,30,December,2018,14:08:07:15635
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
    VCDS Version: 18.9.0.2 (x64)  HEX-V2 CB: 0.4436.4
    Data version: 20180927 DS296.0
    www.Ross-Tech.com
    
    
    
    
    
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    
    
    Chassis Type: 70 - VW Transporter/Multivan (1991 > 1996)
    Scan: 01 02 03 08 15 22 25
     
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels: None
       Part No: 023 906 023 A
       Component: DIGIFANT 1.5        1147  
       VCID: 0A4DA178752C9867C01-0962
    
    No fault code found.
    Readiness: N/A
    
    -------------------------------------------------------------------------------
    Address 02: Auto Trans        Labels: 098-927-731.lbl
       Part No: 098 927 731 B
       Component: DIGIMAT 0842  
       VCID: 2019E3D0E3D03237BE5-0964
    
    8 Faults Found:
    00258 - Solenoid Valve 1 (N88) 
                36-10 - Open Circuit - Intermittent
    00260 - Solenoid Valve 2 (N89) 
                36-10 - Open Circuit - Intermittent
    00262 - Solenoid Valve 3 (N90) 
                36-10 - Open Circuit - Intermittent
    00264 - Solenoid Valve 4 (N91) 
                36-10 - Open Circuit - Intermittent
    00266 - Solenoid Valve 5 (N92) 
                36-10 - Open Circuit - Intermittent
    00270 - Solenoid Valve 7 (N94) 
                36-10 - Open Circuit - Intermittent
    00300 - Transmission Fluid Temp. Sensor (G93) 
                34-10 - No Elaboration Available - Intermittent
    00641 - ATF Temperature 
                06-10 - Signal too High - Intermittent
    
    End----(Elapsed Time: 01:53, VBatt start/end: 12.0V/12.0V. VIgn 0.0V)------
    Sunday,30,December,2018,14:11:35:15635
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
    VCDS Version: 18.9.0.2 (x64)  HEX-V2 CB: 0.4436.4
    Data version: 20180927 DS296.0
    www.Ross-Tech.com
    Last edited by Uwe; 06-22-2019 at 06:47 PM. Reason: CODE tags

  4. #4
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    I think I may have found the issue... good thing I decided to do another check of the TCM. The photos in the original post ^ show the TCM in good condition.

    But take a look at these photos from today
    You can tell that there is serious water damage. Makes sense with the rainy winter we had here in California (and the slight rust I have around the windshield that probably let water in).

    I had heard about water damage on the TCM... I just never thought it would happen to me

    Ok. So I definitely need a replacement. Still would prefer to spend as little as possible to get a suitable replacement.
    If anybody has any suggestions, please let me know... and please don't suggest Car-Part.com unless you know a specific reliable vendor... because I've already tried several and they are not very helpful or responsive.

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  6. #5
    NostraJackAss Jack@European_Parts's Avatar
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    I have them new and reman.
    Dont screw around with incorrect applications and hardware, you will destroy your trans.

    https://www.ebay.com/itm/VW-Eurovan-...YAAOSw27lcBvG2

    You will get the forum discount too.
    Let me know.
    I may be able to fix what you have for less but need to see what happened on scope and breadboard.

    Check this post of a very bad damaged board on 01P.

    #159

    https://forums.ross-tech.com/showthr...l=1#post168196
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

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  8. #6
    NostraJackAss Jack@European_Parts's Avatar
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    I replied to this inquiry in eBay with discount offer & if you want me to check microfiche application please provide VIN number?

    Thank you
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

  9. #7
    NostraJackAss Jack@European_Parts's Avatar
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    Example OP of what we can see with a VIN......

    https://forums.ross-tech.com/showthr...l=1#post168580
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

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