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Thread: 2001 Passat HVAC coding

  1. #1
    Verified VCDS User hans j's Avatar
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    2001 Passat HVAC coding

    Had this car come in from another shop, noticed the control head loose and coding says it's definitely not coded correctly. Out of all my old autoscans, I don't have one that uses the same part number and can't verify the coding.

    Code:
    Tuesday,08,September,2015,17:03:27:05734
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
    VCDS Version: 15.7.1.0 (x64)
    Data version: 20150904
    www.Ross-Tech.com
    
    Dealer/Shop Name: Utah Imports hj
    
    VIN: WVWRH63B41P280188   License Plate: 
    Mileage: 269060km-167186mi   Repair Order: 
    
    
    Chassis Type: 3B (3B - VW Passat B5 (1997 > 2005))
    Scan: 01 02 03 08 15 16 17 19 35 36 37 46 47 55 56 57 58 75 76 77
             
     
    VIN: WVWRH63B41P280188   Mileage: 269060km-167186miles
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels: 078-907-551-ATQ.lbl
       Part No: 3B0 907 551 BS
       Component: 2.8L V6/5V      G   0001  
       Coding: 07501
       Shop #: WSC 00028  
       VCID: F5A2A14ACDD7D096FE-5184
       WVWRH63B41P280188     VWZ7Z0A3593376
    
    4 Faults Found:
    16814 - Catalyst System; Bank 2 
                P0430 - 35-00 - Efficiency Below Threshold
    16804 - Catalyst System; Bank 1 
                P0420 - 35-10 - Efficiency Below Threshold - Intermittent
    18010 - Power Supply Terminal 30 
                P1602 - 35-10 - Voltage too Low - Intermittent
    16514 - Oxygen (Lambda) Sensor B1 S1 
                P0130 - 35-10 - Malfunction in Circuit - Intermittent
    Readiness: 0000 1000
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 8E0-614-111-ASR.lbl
       Part No: 3B0 614 111 
       Component: ABS/ASR 5.3 FRONT   D00  
       Coding: 00032
       Shop #: WSC 00028  
       VCID: D3E63FD223E3AEA630-5184
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC        Labels: 3Bx-907-044.lbl
       Part No: 3B1 907 044 C
       Component: CLIMATRONIC     C 0.7.0  
       Coding: 01000
       Shop #: WSC 00066  
       VCID: A10AA51A29DF0C36F2-523C
    
    4 Faults Found:
    00532 - Supply Voltage B+ 
                07-10 - Signal too Low - Intermittent
    00779 - Outside Air Temp Sensor (G17) 
                30-00 - Open or Short to Plus
    00281 - Vehicle Speed Sensor (G68) 
                37-10 - Faulty - Intermittent
    01274 - Air Flow Flap Positioning Motor (V71) 
                37-00 - Faulty
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
       Part No: 6Q0 909 605 C
       Component: 09 AIRBAG VW6  04   0004  
       Coding: 12345
       Shop #: WSC 00028  
       VCID: B73E6B42975B62862C-5160
    
    1 Fault Found:
    00532 - Supply Voltage B+ 
                07-10 - Signal too Low - Intermittent
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel        Labels: 1J0-907-487-A.lbl
       Part No: 1J0 907 487 B
       Component: Lenkradelektronik   0002  
       Coding: 00008
       Shop #: WSC 00028  
       VCID: B02C505E7235B5BE6D-5216
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 3B0-920-xx5-17.lbl
       Part No: 3B0 920 925 B
       Component: KOMBI+WEGFAHRSP VDO V13  
       Coding: 07235
       Shop #: WSC 19419  
       VCID: A208AA162CD9172EEB-5160
       WVWRH63B41P280188     VWZ7Z0A3593376
    
    2 Faults Found:
    01176 - Key 
                07-10 - Signal too Low - Intermittent
    01336 - Company Data Bus for Comfort System 
                37-10 - Faulty - 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 00028  
       VCID: F0AC905EB2B5F5BE2D-5160
    
    3 Faults Found:
    01336 - Company Data Bus for Comfort System 
                37-10 - Faulty - Intermittent
    01320 - Control Module for Climatronic (J255) 
                49-10 - No Communications - Intermittent
    01333 - Door Control Module; Rear Left (J388) 
                49-10 - No Communications - Intermittent
    
    -------------------------------------------------------------------------------
    Address 36: Seat Mem. Drvr        Labels: 3B1-959-760.lbl
       Part No: 3B1 959 760 D
       Component: Sitzverstellung     0101  
       Shop #: WSC 00000 000 00000
       VCID: AE104E263801A34E7F-5160
    
    3 Faults Found:
    01008 - Note; Emergency OFF Switch is Active! 
                000 -  -  - Intermittent
    00668 - Supply Voltage Terminal 30 
                001 - Upper Limit Exceeded - Intermittent
    00668 - Supply Voltage Terminal 30 
                002 - Lower Limit Exceeded - Intermittent
    
    -------------------------------------------------------------------------------
    Address 46: Central Conv.        Labels: 1C0-959-799.lbl
       Part No: 1C0 959 799 C
       Component: 09 Komfortgerát HLO 0001  
       Coding: 00258
       Shop #: WSC 00028  
       VCID: B73E6B42975B62862C-4B3C
    
       Subsystem 1 - Part No: 1C0959801
       Component: 09 Tőrsteuer.FS     0001  
    
       Subsystem 2 - Part No: 1C0959802A
       Component: 09 Tőrsteuer.BF     0001  
    
       Subsystem 3 - Part No: 1C0959811
       Component: 09 Tőrsteuer.HL     0001  
    
       Subsystem 4 - Part No: 1C0959812
       Component: 09 Tőrsteuer.HR     0001  
    
    11 Faults Found:
    01330 - Central Control Module for Central Convenience (J393) 
                53-10 - Supply Voltage Too Low - Intermittent
    01333 - Door Control Module; Rear Left (J388) 
                49-10 - No Communications - Intermittent
    00849 - S-contact at Ignition/Starter Switch (D) 
                25-10 - Unknown Switch Condition - Intermittent
    00930 - Locking Module for Central Locking; Rear Left (F222) 
                54-10 - Incorrectly Equipped - Intermittent
    01330 - Central Control Module for Central Convenience (J393) 
                37-00 - Faulty
    01331 - Door Control Module; Driver Side (J386) 
                53-10 - Supply Voltage Too Low - Intermittent
    00913 - Window Regulator Switch; Front Right Driver (E81) 
                29-10 - Short to Ground - Intermittent
    01332 - Door Control Module; Passenger Side (J387) 
                53-10 - Supply Voltage Too Low - Intermittent
    01035 - Electric Window Thermal Protection Active; Passenger 
                35-10 -  -  - Intermittent
    01333 - Door Control Module; Rear Left (J388) 
                53-10 - Supply Voltage Too Low - Intermittent
    01334 - Door Control Module; Rear Right (J389) 
                53-10 - Supply Voltage Too Low - Intermittent
    
    End-------------------------(Elapsed Time: 06:44)--------------------------
    The A/C has a shut off code for no engine speed signal, but no fault in Engine for engine speed. So I'm wondering if the coding is way off (even when I change it to what I think it should be it still doesn't work).
    Can anyone suggest the proper coding for this VIN and part number?

  2. #2
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    is it possible it's the speed signal wire into the rear of the hvac unit, maybe high resistance/open circuit? I saw this same issue before on a SEAT ibiza.

  3. #3
    Ross-Tech Employee Sebastian's Avatar
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    Even with an incorrect coding of that module, you shouldn't have any electrical issues with the flaps.
    Sebastian @ Ross-Tech.com // VCDS Rookie since 2003

    »Nichts erweitert das eigene Wissen mehr,
    als die Meinung eines Andersdenkenden.«

  4. #4
    FoRT jyoung8607's Avatar
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    Quote Originally Posted by hans j View Post
    Can anyone suggest the proper coding for this VIN and part number?
    Try coding to 17200. In the label file you'll see a reference to that being a W8-specific coding, but I can tell you my 2004 GLX with ATQ V6 was coded that way from the factory and works fine. If that doesn't work, you could try 15200.

    Ignore the faulty positioning motor DTCs for the moment. The Climatronic control head in this car is notorious for declaring flap control motors faulty when they're still working okay. I think my old Passat has declared three separate flap motors faulty and the whole system works just fine. You also don't mention if anyone tried the flap position adaptation, which could also explain the faulty code. That's absolutely necessary after swapping control heads, especially a used one.

    Recode, clear faults in 08 and 19, perform flap position adaptation so it's matched to this car, and then re-check behavior and fault codes.

    Jason

  5. #5
    NostraJackAss Jack@European_Parts's Avatar
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    Regardless of coding issues here, there is clear swing in voltages; based on the scan which need to be addressed ASAP.

    Check connections to battery, and alternator for proper output............


    3 Faults Found:
    01008 - Note; Emergency OFF Switch is Active!
    000 - - - Intermittent
    00668 - Supply Voltage Terminal 30
    001 - Upper Limit Exceeded - Intermittent
    00668 - Supply Voltage Terminal 30
    002 - Lower Limit Exceeded - Intermittent

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  6. #6
    Verified VCDS User hans j's Avatar
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    Thanks for the ideas! CAN gateway keeps coming up with a had fault for no communication with HVAC and block 125 in any CAN connected module doesn't include HVAC. Since the car came in with the HVAC control head loose and no identifying part number (sticker pulled off) on the module, I've warned the customer that there is more to look at and I'm not doing it for free.

    I've tried all the coding options and no change. I could only find 17200 referenced in all my old autoscans as well.

    Battery and alternator are good

    I'm never worried about the flap faults or the ambient air temp faults. I've had those many times with no effect to the air conditioning. I got in to the menu of the climatronic and it said the air temp sensor behind the bumper was the issue.

    So it could be the speed sensor wire to the HVAC module, but I'm betting the module isn't equipped to take the CAN signal (and I'm betting it gets it's speed signal from the CAN). I'll post back up if they decide on a new HVAC module!

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  8. #7
    FoRT jyoung8607's Avatar
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    Quote Originally Posted by hans j View Post
    Thanks for the ideas! CAN gateway keeps coming up with a had fault for no communication with HVAC and block 125 in any CAN connected module doesn't include HVAC. Since the car came in with the HVAC control head loose and no identifying part number (sticker pulled off) on the module, I've warned the customer that there is more to look at and I'm not doing it for free.
    I think you may indeed have the wrong HVAC module.

    The control head we can see installed in your Auto-Scan (3B1 907 044 C) does NOT share cross-references with the one I looked up in PL24 for this specific vehicle by VIN (3B1 907 044 J). Both show as valid for a "2001" Passat but that's the only year of overlap; -C fits older cars and -J fits newer. Parts shopping for a 2001 Passat sucks because of the mid-model year platform refresh, B5 to B5.5 if you've ever seen those terms. A 2001 can be either.

    Suffix -J units are readily available for $cheap on eBay. See if your customer will try one out. I wouldn't be surprised if there are more gremlins hiding; somebody was already in there screwing with it for a reason and you're showing all sorts of other comfort-CAN comms faults. But, it should get you a lot closer.

    Jason

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  10. #8
    Verified VCDS User hans j's Avatar
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    Definitely the wrong module! Parts guy finally looked it up and told the other shop to supply a "J" version. Sure enough it works... Came coded 17200 and would not allow me to change it to 15200 so it's staying 17200. Shut off compressor code stays 0.0 and engine RPM is read just fine. Hard fault also cleared in CAN gateway.

    Interesting to note measuring block 80 would not work on the "C" version.

    Funny thing is, Chavez Auto Service did an evac/recarge, changed the pressure sensor, swapped the A/C relay, and finally changed the control valve (their words) before bringing it to us.

    Oh and the next best thing is after I installed it, the display went blank! Turns out someone used a 2 amp fuse in position 5 (for A/C and other items). Sometimes that tree with all that shade just doesn't make you a good mechanic...

    Thanks for the help guys.

    Oh and the temp sensor fault went away and the CAN for HVAC is located in block 132! It was 0 with the old module and 1 with the new module.

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