Powertrain Databus.

   #1  

VanNorton

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Ran VCDS after not getting communication with it. Runs and will drive in 1st but no chimes and other things inside. Cluster isn't lit up. I change fuel filter turned it on had had multiple codes on the cluster. So, I disconnected the battery to reset the codes. After I reconnected I had no cluster and car went into safe mode. After the scan. These are the codes. Seems all bit 3 go to Powertrain Databus.
How bad am I going to get broke off for the fix?

Tuesday,13,July,2021,18:12:03:60496
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 21.3.0.0 (x64)
Data version: 20210226 DS325.0
www.Ross-Tech.com


VIN: WVGCM77L34D058513 License Plate:


Chassis Type: 7L (7L - VW Touareg (2003 > 11/2006))
Scan: 01 02 03 05 06 08 09 11 13 15 16 17 18 19 1C 22 29 32 34 36
37 39 3C 46 47 55 56 57 64 65 68 69 6C 6D 6E 75 76 77

VIN: WVGCM77L34D058513
-------------------------------------------------------------------------------
Address 01: Engine Labels: 077-907-560-AXQ.lbl
Part No SW: 4D0 907 560 DA HW: 8E0 907 560
Component: 4.2L V8/5V G 0020
Coding: 0007875
Shop #: WSC 31414 000 00000
VCID: 68D4B062589F8BCB6B-5120

9 Faults Found:
18053 - Powertrain Data Bus
P1645 - 008 - Missing Message from AWD Controller
18045 - Powertrain Data Bus
P1637 - 008 - Missing Message from Electric Load Controller
18043 - Powertrain Data Bus
P1635 - 008 - Missing Message from A/C Controller
18057 - Powertrain Data Bus
P1649 - 008 - Missing Message from ABS Controller
18107 - Powertrain Data Bus
P1699 - 008 - Missing Message from Steering Wheel Electronics
18058 - Powertrain Data Bus
P1650 - 008 - Missing Message from Instrument Cluster - MIL ON
18034 - Powertrain Data Bus
P1626 - 008 - Missing Message from TCU - MIL ON
17699 - Coolant Temp Sensor at Radiator Outlet (G83)
P1291 - 002 - Signal too Large - Intermittent
16885 - Vehicle Speed Sensor
P0501 - 004 - Implausible Signal - Intermittent
Readiness: 0010 1101

-------------------------------------------------------------------------------
Address 39: Right Light Labels: 3D0-909-158.lbl
Part No: 3D0 909 158
Component: EVG GDL+AutoLWR(r) X012
Coding: 0000002
Shop #: WSC 31414 000 00000
VCID: 67D6B35E558184B362-FFFE

No Faults Found
or DTCs not supported by controller
or a communication error occurred

-------------------------------------------------------------------------------
Address 46: Central Conv. Labels:
VCID: 55AA8996ACED0623C0-FFFE


End-------------------------(Elapsed Time: 10:02)--------------------------

Address 01: DTCs cleared.
 
   #2  

Uwe

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^^^ Are those the only modules that you were able to establish a connection to?

-Uwe-
 
   #3  

VanNorton

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Yes, those are the only ones. I didn't know if it were something my Vw mechanic may be able to do.
 
   #4  

PetrolDave

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Looks like a power problem to me (fuses and/or relays), I'd suggest getting a wiring diagram and seeing how power gets to the modules that cannot be communicated with.
 
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   #5  

VanNorton

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Yea lol, I can tell that will be somewhat difficult. I have OG owner manuals but there isn't anything in there that says.
 
   #6  

Uwe

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I can tell that will be somewhat difficult.


-Uwe-
 
   #7  

VanNorton

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^^^ Are those the only modules that you were able to establish a connection to?

-Uwe-
I'm sorry, I read this again. No these are the modules that it isn't speaking to.
 
   #8  

VanNorton

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Ok, via club Touareg post, I read about factory vw spliced wires in the foot well. Found those (corroded and broken) re-spliced with wtr proof butt connectors. This fixed my safe mode in trans allowing me to shift like norma and seems to have brought back the 4x4 controls. I have checked all fuses on left & right boxes (all good) I then went to the relay box on the driver's side and checked all connections that should have constant and Intermittent power via ignition switch, all have power. I am going to check all connections at ECM. I am still getting no cluster. I feel like what ever this last issue is, that it's probably a small one but will be the hardest to find. Any other help on the cluster would be greatly appreciated. Thank you
 
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   #9  

VanNorton

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I had power to the cluster which showed up 3 lights 1 abs 1 esp and 1 other I can't remember. I am hoping to take a pic if I can get it back. Cluster worked for those 2 lights but not coming back on again. May need a system clear again.
 
   #10  

Uwe

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Please post up a fresh scan.

-Uwe-
 
   #11  

VanNorton

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I will as soon as I get one. Rt now it went from running, to power but not turning over. Battery was only pulling 12.7-8. Needs to be up around 13.4 or so I think. It's on charge for now. Battery is dated 1/15 so I'm sure it probably needs one despite it holding charge
 
   #12  

VanNorton

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Well, we tried to scan it again and VCDS got absolutely nothing. Didn't recognize anything at all. Have power to all fuses and relays (that I know of within engine bay. All fuses in side are good, the ones that take the power on all light up my checker on both sides. Couldn't even do a reset. For sure a damn Reg gremlin. I'm at a loss. If I have power coming to the relays could the relay it still be bad? What do you guys think? It was running. Turned it off, hit the lock button 2 times and I got 1 chirp (1st I've herd any chime or bell since this started.) Because I finally got it shifting, I decided to go around the block to make sure it shifted. Hit the ignition and nothing, not even a click. I was moving forward and now what seems like 24 steps back.
 
   #13  

VanNorton

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Battery off charger and completely disconnected sits at 12.4/ 12.5
 
   #14  

PetrolDave

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Have you got a wiring diagram yet? It sounds like there is power not getting through (many cars have large 100A+ 'mega fuses') and/or a faulty modules not enabling relays to turn on.
 
   #15  

VanNorton

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I am getting power to all fuses and relays that are left, rt, under seat, and engine bay. I'm going to start replacing the relays and something I real was to take out the Kessey fuse. Don't know what that will do other than not work steering colum. I'll keep you posted. Thanks again for the help, it's greatly appreciated.
 
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