2001 Passat HVAC coding

hans j · Sep 9, 2015

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 Tõrsteuer.FS     0001  

   Subsystem 2 - Part No: 1C0959802A
   Component: 09 Tõrsteuer.BF     0001  

   Subsystem 3 - Part No: 1C0959811
   Component: 09 Tõrsteuer.HL     0001  

   Subsystem 4 - Part No: 1C0959812
   Component: 09 Tõrsteuer.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?

dubTECH · Sep 9, 2015

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.

Sebastian · Sep 9, 2015

Even with an incorrect coding of that module, you shouldn't have any electrical issues with the flaps.

jyoung8607 · Sep 9, 2015

hans j said:
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

Jack@European_Parts · Sep 9, 2015

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

hans j · Sep 10, 2015

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!

jyoung8607 · Sep 10, 2015

hans j said:
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

hans j · Sep 10, 2015

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.

2001 Passat HVAC coding

hans j

Verified VCDS User

dubTECH

Verified VCDS User

Sebastian

Ross-Tech Employee

jyoung8607

FoRT

Jack@European_Parts

Gone But Not Forgotten

hans j

Verified VCDS User

jyoung8607

FoRT

hans j

Verified VCDS User