Central Electrics Gremlins

   #21  

Tbez

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Jef, I have done the calibration to no effect. Interestingly enough the ABS code was not "zeroed out" as it seems is a common brain fart for these devices. The proper coding was in place but I went ahead and did the coding and attempted the calibration anyway. I was not successful in my attempt. The steering wheel sensor did not give me the expected readings when looking at measuring block 005 - instead of seeing the axis rotate 90 degrees it stayed pretty much at 0.0 (though I did see a likely erroneous fluctuation to 2.5 degrees). I took a picture of my steering wheel turned 90 degrees left with my PC next to it showing meas block 005 displaying 0.0 degrees but can't work out how to post it here. I can deduce from this I have another problem but there does not seem to be a conclusive consensus on what that may be by glancing through the various forums. So, I'm going back to the well for another much needed drink of knowledge. What say you?
 
   #22  

Jack@European_Parts

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Needs a G85 SAS or wiring to it is suspect or voltages/ground or ability to carry current are insufficient for calibration?

3 Faults Found:
00778 - Steering Angle Sensor (G85)
37-10 - Faulty - Intermittent
Makes sense to me..........
 
   #23  

Tbez

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Yeah, what Jack said...

Needs a G85 SAS or wiring to it is suspect or voltages/ground or ability to carry current are insufficient for calibration?



Makes sense to me..........
Thanks Jack. I've sort of deduced that short of the car spontaneously combusting like a Tesla it'd probably make sense to you. Relativity made sense to Einstein too but I'm still a little :confused: So I've been digging around trying to figure out how to troubleshoot/validate the wiring and signals but I'm not able to find anything. Is there a specific erwin manual or wiki that can give me some insight? I'm not real keen to pull the steering wheel off so I can stare blankly at the innards hoping inspiration will strike me..
 
   #24  

Jack@European_Parts

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Thanks Jack. I've sort of deduced that short of the car spontaneously combusting like a Tesla it'd probably make sense to you. Relativity made sense to Einstein too but I'm still a little :confused: So I've been digging around trying to figure out how to troubleshoot/validate the wiring and signals but I'm not able to find anything. Is there a specific erwin manual or wiki that can give me some insight? I'm not real keen to pull the steering wheel off so I can stare blankly at the innards hoping inspiration will strike me..

Fair question..........

https://erwin.audiusa.com/erwin/showHome.do

JPPSG

https://forums.ross-tech.com/showth...essional-Problem-Solver-Guide-quot-JPPSG-quot

 
   #25  

Tbez

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Queue the Circus music, here we go again!

Well, after doing some additional troubleshooting to see if I could sort out the G85 SAS issues (checking for voltages and such) and finding nothing I put the ABS controller connector back on and ran a scan to confirm nothing had changed. What I got in the scan were new faults pertaining to the ABS controller. Didn't have a chance to see if the controller answers up as a fast moving midwest thunderstorm moved in and unleashed a torrent. So, where would you go from here? Latest scan is below:

**Just noticed something significant - I seem to be missing any comms in the scan from the Central Electrics (Address 09) and the Central Convenience modules (Address 46). That can't be good. Thoughts??

Code:
Saturday,17,August,2019,14:56:31:23170
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 19.6.1.0 (x64)  HEX-V2 CB: 0.4508.4
Data version: 20190529 DS308.0
www.Ross-Tech.com


VIN: WAULC68E05A114733   License Plate: TONY A4
Mileage: 274950km-170846mi   Repair Order: 8-17-19 post troubleshooting g85 error



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 8E (8D - Audi A4/S4/RS4 B5 (1995 > 2002))
Scan: 01 02 03 08 15 16 17 25 35 37 45 55 56 57 67 75 76 77
 
VIN: WAULC68E05A114733   Mileage: 274950km-170846miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 06B-909-518-AMB.lbl
   Part No SW: 8E0 909 518 BC    HW: 8E0 909 018 A
   Component: 1.8L R4/5VT     G   0020  
   Revision: 00000000    Serial number: AUZ6Z0D0371349
   Coding: 0016751
   Shop #: WSC 11111 111 45799
   VCID: 72BDDAB038BA89B7CCD-5160

1 Fault Found:
18057 - Powertrain Data Bus 
            P1649 - 008 - Missing Message from ABS Controller
Readiness: 0110 1101

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 01V-927-156.lbl
   Part No: 8E0 927 156 AA
   Component: AG5 01V 1.8l5VT USA 0505  
   Coding: 0001002
   Shop #: WSC 06325 000 00000
   VCID: 6D87C9CC2184564F11F-5160

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 8E0-820-043.lbl
   Part No: 8E0 820 043 AD
   Component:   A4 Klimaautomat   1424  
   Coding: 00000
   Shop #: WSC 06325  
   VCID: 6393AFF4F240103FB7B-513C

1 Fault Found:
01312 - Powertrain Data Bus 
            79-00 - Please Check Fault Codes

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 8E0-959-655-84.lbl
   Part No: 8E0 959 655 K
   Component: Airbag 8.4EP        1001  
   Coding: 0010607
   Shop #: WSC 06325 000 00000
   VCID: 3FDB43843B6814DFF33-5184

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 8E0-953-549.lbl
   Part No: 8E0 953 549 N
   Component: Lenks·ulenmodul     0611  
   Coding: 01041
   Shop #: WSC 11111  
   VCID: 3E253E8039621DD7F85-4B00

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 8E0-920-9xx-8E2.lbl
   Part No: 8E0 920 950 P
   Component: KOMBI+WEGFAHRS. RB4 D42  
   Coding: 01231
   Shop #: WSC 03131  
   VCID: 363526A01152D597205-5160
   WAULC68E05A114733     AUZ6Z0D0371349

1 Fault Found:
01316 - ABS Control Module 
            49-00 - No Communications

End----(Elapsed Time: 04:18, VBatt start/end: 11.9V/11.9V. VIgn 11.8V)-----
 
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   #26  

Jack@European_Parts

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Queue the Circus music, here we go again!

Well, after doing some additional troubleshooting to see if I could sort out the G85 SAS issues (checking for voltages and such) and finding nothing I put the ABS controller connector back on and ran a scan to confirm nothing had changed. What I got in the scan were new faults pertaining to the ABS controller. Didn't have a chance to see if the controller answers up as a fast moving midwest thunderstorm moved in and unleashed a torrent. So, where would you go from here? Latest scan is below:

**Just noticed something significant - I seem to be missing any comms in the scan from the Central Electrics (Address 09) and the Central Convenience modules (Address 46). That can't be good. Thoughts??​
Kids today I'll tell ya......... :p

Abstract first scan in thread
Chassis Type: 8E (8E - Audi A4/S4/RS4 B6/B7 (2001 > 2008))
Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 36 37 45 46 55 56 57 65
67 69 75 76 77


Now .........?
Chassis Type: 8E (8D - Audi A4/S4/RS4 B5 (1995 > 2002))
Scan: 01 02 03 08 15 16 17 25 35 37 45 55 56 57 67 75 76 77

VIN: WAULC68E05A114733 Mileage: 274950km-170846miles

Vehicle Identification No.WAULC68E05A114733
ModelAudi A4 qu. 1,8
A4
Date of production27.10.2004
Model year2004
Sales type8E252Z
Engine CodeAMB
Transmission CodeGBF

FOCUS!
Quit screwing around........

 
   #27  

Tbez

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Huh? I truly wish I understood what you meant. I've never done this stuff before and apologize for not understanding. It'll have to wait in any case. Off to work for me..
 
   #28  

Uwe

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He means you picked the wrong chassis type (8D vs. 8E) before you started the scan. Since this car is not highly optioned, it doesn't look like VCDS skipped any modules because of it.

-Uwe-
 
   #29  

Tbez

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Doh! Yep, I see it now. Next time I get a chance I'll run a proper scan. Sorry Jack! Not intentionally wasting anyone's time.
 
   #30  

Jack@European_Parts

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NP just thought you would of knew what I was making reference too, remember this is not a new user section, so I usually am thinking guys here have some experience and is why I break stones to a degree.
The WD should be observed and wiggle tests done with load light for G85 before condemned, maybe even overlay of tracks.
 
   #31  

Tbez

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NP just thought you would of knew what I was making reference too, remember this is not a new user section, so I usually am thinking guys here have some experience and is why I break stones to a degree.
The WD should be observed and wiggle tests done with load light for G85 before condemned, maybe even overlay of tracks.
Hi Jack, thanks for your understanding and your help. I'm going through things in an orderly fashion and documenting results. Can you clarify what you mean by "maybe even overlay of tracks" please? I'm with you up to that point.
 
   #32  

Jack@European_Parts

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Test overlay is where you make up your own sets of wires to isolate the harness from module to sensor for tracks using a WD, no?
 
   #33  

Tbez

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Test overlay is where you make up your own sets of wires to isolate the harness from module to sensor for tracks using a WD, no?
Understood, thanks. Yes, I'm using the erwin supplied WD. In going through some troubleshooting steps this afternoon I was manipulating wires going to G85 (started inside the car and worked my way out) with no observed affect on ABS communications or meas block values for the steering sensor. When I started fiddling with J104 on the ABS controller I immediately lost comms with the ABS controller. In manipulating the harness I was able to consistently affect the communications between the ABS controller and VCDS. No affect on the meas blocks though. I then took the connector cover off J104 and wiggled wires in their while observing the computer. At one point with the connector cover off I had a condition where ABS comms were lost but the G85 sensor errors had cleared (I'm guessing no comms means it couldn't read that sensor?) and no other faults existed anywhere else except for my pre-existing license plate light fault. It is worth noting that I have the original BCM installed at this time which I had done just to see if there was any possible correlation with the errors I had seen on it initially. It comes up exactly the same as the replacement. Calling it a day I buttoned the cover up on J104, put a zip tie back on it and I was right back where I had started the day - G85 faults. Latest scan is below, original BCM installed but otherwise not much new.

So I guess the question is: Wiring harness, connector or ABS controller? The "track overlay" idea sounds quite compelling to me but not sure if that's something I'm equipped to do.

Code:
Monday,19,August,2019,19:12:57:23170
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 19.6.1.0 (x64)  HEX-V2 CB: 0.4508.4
Data version: 20190529 DS308.0
www.Ross-Tech.com


VIN: WAULC68E05A114733   License Plate: TONY A4
Mileage: 274950km-170846mi   Repair Order: 8_19_19 scan4 original BCM



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 8E (8E - Audi A4/S4/RS4 B6/B7 (2001 > 2008))
Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 36 37 45 46 55 56 57 65
          67 69 75 76 77
 
VIN: WAULC68E05A114733   Mileage: 274950km-170846miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 06B-909-518-AMB.lbl
   Part No SW: 8E0 909 518 BC    HW: 8E0 909 018 A
   Component: 1.8L R4/5VT     G   0020  
   Revision: 00000000    Serial number: AUZ6Z0D0371349
   Coding: 0016751
   Shop #: WSC 11111 111 45799
   VCID: 72BDDAB038BA89B7CCD-5160

No fault code found.
Readiness: 0110 1101

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 01V-927-156.lbl
   Part No: 8E0 927 156 AA
   Component: AG5 01V 1.8l5VT USA 0505  
   Coding: 0001002
   Shop #: WSC 06325 000 00000
   VCID: 6D87C9CC2184564F11F-5160

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 8E0-614-517.lbl
   Part No: 8E0 614 517 A
   Component: ABS/ESP allrad      4529  
   Coding: 04277
   Shop #: WSC 12345  
   VCID: 2615F6E0C1F2A517905-51CE

1 Fault Found:
01826 - Sensor for Steering Angle (G85); Supply Voltage Terminal 30 
            35-00 - -

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 8E0-820-043.lbl
   Part No: 8E0 820 043 AD
   Component:   A4 Klimaautomat   1424  
   Coding: 00000
   Shop #: WSC 06325  
   VCID: 6393AFF4F240103FB7B-513C

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 8E0-907-279-8E2.lbl
   Part No: 8E0 907 279 F
   Component: int. Lastmodul  USA 0517  
   Coding: 00003
   Shop #: WSC 11111  
   VCID: 353721AC0C54DE8F29F-4B00

1 Fault Found:
01504 - Bulb for License-Plate Light (X) 
            57-00 - Electric Circuit Failure

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 8E0-959-655-84.lbl
   Part No: 8E0 959 655 K
   Component: Airbag 8.4EP        1001  
   Coding: 0010607
   Shop #: WSC 06325 000 00000
   VCID: 3FDB43843B6814DFF33-5184

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 8E0-953-549.lbl
   Part No: 8E0 953 549 N
   Component: Lenks·ulenmodul     0611  
   Coding: 01041
   Shop #: WSC 11111  
   VCID: 3E253E8039621DD7F85-4B00

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 8E0-920-9xx-8E2.lbl
   Part No: 8E0 920 950 P
   Component: KOMBI+WEGFAHRS. RB4 D42  
   Coding: 01231
   Shop #: WSC 03131  
   VCID: 363526A01152D597205-5160
   WAULC68E05A114733     AUZ6Z0D0371349

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 8E0-959-433-MAX.clb
   Part No: 8E0 959 433 BB
   Component: Komfortger·t T7B    1612  
   Coding: 11788
   Shop #: WSC 06325  
   VCID: 72BDDAB03DBA89B7CCD-4B00

   Subsystem 1 - Part No: 8E1959801
   Component: Tırsteuer.FS BRM 0205  

   Subsystem 2 - Part No: 8E1959802E
   Component: Tırsteuer.BF BRM 0205  

   Subsystem 3 - Part No: 8E0959801A
   Component: Tırsteuer.HL BRM 0205  

   Subsystem 4 - Part No: 8E0959802A
   Component: Tırsteuer.HR BRM 0205  

No fault code found.

End----(Elapsed Time: 05:48, VBatt start/end: 11.9V/11.7V. VIgn 11.6V)-----
 
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   #35  

Tbez

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I've checked power for the abs controller on j104 (pins 2, 6, & 23 if memory serves) is there another place I should be checking? Perhaps the referenced terminal 30?
 
   #37  

Jef

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Address 03: ABS Brakes Labels: 8E0-614-517.lbl
Part No: 8E0 614 517 A
Component: ABS/ESP allrad 4529
Coding: 04277
Shop #: WSC 12345
VCID: 2615F6E0C1F2A517905-51CE

1 Fault Found:
01826 - Sensor for Steering Angle (G85); Supply Voltage Terminal 30
35-00 - -
If this is all you have, do the figure 8, down the road, figure 8 test drive. Often times it will clear out with that. If not, then as per Jack, you will need to dig into the wiring.
 
   #39  

Tbez

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Thanks gents, I will have time to do the figure-8 this evening and then if necessary post the WD per Jack (have to figure out how to post pics first...). Jack, nobody has suggested ignition switch yet. How would I test/confirm that?
 
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