2011 JSW TDI: No Crank

   #1  

vwblues

Verified VCDS User
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VCDS Serial number
C?ID=331644
I am looking for some help with direction on troubleshooting a no crank condition on my stock 2011 Jetta Sportwagen TDI. I purchased this car from a pre-owned dealership out of state and trailered it home. The car started fine multiple times when I was inspecting prior to purchase, but after I got it home, I started experiencing an intermittent no crank and a multitude of strange electrical issues. Now, the no crank condition is continuous.

From looking at wiring diagrams, both the no crank and strange electrical issues seem to trace back to the body control module (BCM), J519. VCDS shows that the computer can see that the clutch is depressed, and the key is being taken to start, however I’m not seeing control voltage at the starter relay (1.74 V measured at the relay terminal regardless of key position). I can get the engine running by either jumping the load contacts on the starter relay or by push starting the vehicle, but most BCM functions do not work.

This problem has been going on for months, so I’ve performed multiple autoscans. One of the autoscans I performed showed two fault priority 1 codes on address 09 related to Terminal 30 left and right being open circuited (00927 and 01516). Today, these codes were not active, but measuring block 31 says Terminal 30 voltage is 17.75 V and measuring block 38 says Terminal 30 voltage is implausible for left, right, and reference. It is not clear what is referred to by left and right, so I’ve done a no-load check of powers and grounds at the connector for J519, and everything is satisfactory (I have not tested the circuit under load due to being unable to backprobe the connectors and lacking a piercing probe). The only potential power problem I’ve found is some black residue on fuse SB16 and minor socket distortion, but changing/jumping the fuse did not change the problem, so I haven’t pursued fuse box replacement.

Since I don’t have a smoking gun, I’m looking for some advice on what to do next. I’ve been primarily focused on the no crank, however I’ve peeked into some of the other electrical gremlins and found that most of the time, the computer sees the input, but it does not respond (e.g. door lock command). Money is tight now, so I’m really trying to find something concrete before firing the parts cannon. What would you do next?

Autoscan following a push-start:
Code:
Wednesday,24,July,2019,19:17:11:06024
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

Dealer/Shop Name: (REMOVED)

VIN: 3VWML7AJ3BM******   License Plate: 
Mileage: 91700km-56979mi   Repair Order: 



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


Chassis Type: AJ-VW36 (7N0)
Scan: 01 03 08 09 15 16 17 19 1C 25 42 44 46 4F 52 56 62 72 77

VIN: 3VWML7AJ3BM******   Mileage: 91700km-56979miles

01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: Malfunction 0010
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
1C-Position Sensing -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: Malfunction 0010
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
4F-Centr. Electr. II -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: Malfunction 0010
56-Radio -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
77-Telephone -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (CJA)       Labels: 03L-906-022-CBE.clb
   Part No SW: 03L 997 030 C    HW: 03L 906 019 DA
   Component: R4 2.0l TDI G000SG  9983  
   Revision: 12H10---    Serial number: 00000000000000
   Coding: 0050072
   Shop #: WSC 09198 003 1048576
   VCID: 2E05F35DEC163DF7685-807A

No fault code found.
Readiness: 0 0 0 0 0 

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 1K0-907-379-60EC1F.clb
   Part No SW: 1K0 907 379 BC    HW: 1K0 907 379 BC
   Component: ESP MK60EC1   H30 0106  
   Revision: 00H30001    
   Coding: 114B600C492600FD881206E6921D0042B70000
   Shop #: WSC 00066 000 00000
   VCID: 74B121354EBA5727DE1-8020

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J301)       Labels:| 3C8-907-336.clb
   Part No SW: 3C8 907 336 AJ    HW: 3C8 907 336 AJ
   Component: Climatic      H14 0305  
   Revision: 00009001    
   Coding: 0000001002
   Shop #: WSC 00066 000 00148
   ASAM Dataset: EV_Climatic A01005
   ROD: EV_ClimaBasis_VW36.rod
   VCID: 75B71C3145404E2FE9F-8020

4 Faults Found:
13701376 - Function Restricted due to Missing Message(s) 
          U1111 00 [008] - -
          [Motorsteuergerät - kein Signal/Kommunikation]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 14
                    Reset counter: 37
                    Mileage: 91627 km
                    Date: 2019.07.24
                    Time: 04:15:07

13701392 - Function Restricted due to Missing Message(s) 
          U1111 00 [008] - -
          [Bremsensteuergerät - kein Signal/Kommunikation]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 14
                    Reset counter: 37
                    Mileage: 91627 km
                    Date: 2019.07.24
                    Time: 04:15:07

13701936 - Function Restriction due to Faults in Other Modules 
          U1113 00 [009] - -
          [Steuergerät für Bordnetz - bitte Fehlerspeicher auslesen]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 2
                    Reset counter: 251
                    Mileage: 91533 km
                    Date: 2019.07.23
                    Time: 18:59:40

9481748 - High Pressure Sensor 
          B10AE 14 [008] - Open or Short to Ground
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 14
                    Reset counter: 37
                    Mileage: 91627 km
                    Date: 2019.07.24
                    Time: 04:15:07


-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 1K0-937-08x-09.clb
   Part No SW: 5K0 937 087 K    HW: 5K0 937 087 K
   Component: BCM PQ35 H    011 1035  
   Revision: BK011001    
   Coding: 2D380E1F902F3EC4008800816000004401000086535D8560648020000040
   Shop #: WSC 09198 003 1048576
   VCID: 3D27C4113D70D66FE1F-8068

   Subsystem 1 - Part No: 1K1 955 119 F  Labels: 1KX-955-119.CLB
   Component: Wischer 31101  21  0512 
   Coding: 009795

8 Faults Found:
00446 - Function Limitation due to Under-Voltage 
            002 - Lower Limit Exceeded
             Freeze Frame:
                    Fault Status: 01100010
                    Fault Priority: 6
                    Fault Frequency: 4
                    Reset counter: 252
                    Mileage: 91533 km
                    Time Indication: 0
                    Date: 2019.07.23
                    Time: 03:55:16

             Freeze Frame:
                        Term 15 Off
                    Voltage: 9.25 V
                        OFF
                        OFF
                        OFF
                        OFF
                        OFF

00532 - Supply Voltage B+ 
            002 - Lower Limit Exceeded
             Freeze Frame:
                    Fault Status: 01100010
                    Fault Priority: 4
                    Fault Frequency: 1
                    Reset counter: 252
                    Mileage: 91605 km
                    Time Indication: 0
                    Date: 2019.07.24
                    Time: 03:48:38

             Freeze Frame:
                        Term 15 On
                    Voltage: 12.80 V
                        ON
                        OFF
                        OFF
                        OFF
                        OFF

00907 - Intervention load Management 
            000 - -
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 6
                    Fault Frequency: 2
                    Reset counter: 251
                    Mileage: 91533 km
                    Time Indication: 0
                    Date: 2019.07.23
                    Time: 18:59:55

             Freeze Frame:
                        Term 15 On
                    Voltage: 11.25 V
                        ON
                        OFF
                        OFF
                        OFF
                        OFF

00927 - Terminal 30 (Right) 
            011 - Open Circuit
             Freeze Frame:
                    Fault Status: 01101011
                    Fault Priority: 1
                    Fault Frequency: 1
                    Reset counter: 250
                    Mileage: 91533 km
                    Time Indication: 0
                    Date: 2019.07.22
                    Time: 09:25:03

             Freeze Frame:
                        Term 15 On
                    Voltage: 10.30 V
                        ON
                        OFF
                        OFF
                        OFF
                        OFF

01117 - Generator Terminal DF Load Signal 
            008 - Implausible Signal
             Freeze Frame:
                    Fault Status: 01101000
                    Fault Priority: 6
                    Fault Frequency: 2
                    Reset counter: 252
                    Mileage: 91551 km
                    Time Indication: 0
                    Date: 2019.07.23
                    Time: 19:17:21

             Freeze Frame:
                        Term 15 On
                    Voltage: 11.85 V
                        ON
                        OFF
                        OFF
                        OFF
                        OFF

01800 - Light Switch (E1) 
            008 - Implausible Signal
             Freeze Frame:
                    Fault Status: 01101000
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 250
                    Mileage: 91533 km
                    Time Indication: 0
                    Date: 2019.07.22
                    Time: 09:25:57

             Freeze Frame:
                        Term 15 Off
                    Voltage: 10.30 V
                        OFF
                        ON
                        OFF
                        OFF
                        OFF

02195 - Dimmer Switch Instrument Panel & Switch Lighting (E20) 
            002 - Lower Limit Exceeded
             Freeze Frame:
                    Fault Status: 01100010
                    Fault Priority: 5
                    Fault Frequency: 1
                    Reset counter: 250
                    Mileage: 91533 km
                    Time Indication: 0
                    Date: 2019.07.22
                    Time: 09:25:03

             Freeze Frame:
                        Term 15 On
                    Voltage: 10.25 V
                        ON
                        OFF
                        OFF
                        OFF
                        OFF

02391 - Terminal 30 Reference 
            011 - Open Circuit
             Freeze Frame:
                    Fault Status: 01101011
                    Fault Priority: 4
                    Fault Frequency: 1
                    Reset counter: 250
                    Mileage: 91533 km
                    Time Indication: 0
                    Date: 2019.07.22
                    Time: 09:25:02

             Freeze Frame:
                        Term 15 On
                    Voltage: 10.30 V
                        ON
                        OFF
                        OFF
                        OFF
                        OFF


-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 5K0-959-655.clb
   Part No SW: 5K0 959 655 B    HW: 5K0 959 655 B
   Component: AirbagVW10G   021 0706  
   Serial number: 003C4R00ZWM6  
   Coding: 00003044
   Shop #: WSC 00066 000 00000
   ASAM Dataset: EV_AirbaVW10SMEVW360 A01012
   ROD: EV_AirbaVW10SMEVW360.rod
   VCID: 392FD00129D8EA4FCD7-806C

   Seat occupied recognition: 
   Subsystem 1 - Part No SW: 1KM 959 339     HW: 1KM 959 339 
   Component: BF-Gewichtss.  007 0001 
   Serial number: ---0000R--0005C82Z00

   Crash sensor for side airbag: driver side: 
   Subsystem 2 - Part No SW: 1KM 955 557     HW: 1KM 955 557 
   Component: S.Sens.Fahr.V  H01 ---- 
   Serial number: 3572MSME6C385157ZZZ/

   Crash sensor for side airbag: front passenger side: 
   Subsystem 3 - Part No SW: 1KM 955 557     HW: 1KM 955 557 
   Component: S.Sens.Beif.V  H01 ---- 
   Serial number: 3582MSME1D663356ZZZ.

   Crash sensor for side airbag: rear: driver side: 
   Component: S.Sens.Fahr.H  --- ---- 
   Serial number: 3511HSME2F480723ZZZM

   Crash sensor for side airbag: rear: passenger side: 
   Component: S.Sens.Beif.H  --- ---- 
   Serial number: 3521HSME76310B24ZZZG

   Crash sensor for front airbag: driver side: 
   Component: F.Sens.Fahr  --- ---- 
   Serial number: 35527SME3F294B23ZZZP

   Crash sensor for front airbag: front passenger side: 
   Component: F.Sens.Beif  --- ---- 
   Serial number: 35627SME7C115123ZZZ9

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:| 5K0-953-569.clb
   Part No SW: 5K0 953 507 BC    HW: 5K0 953 549 E
   Component: Lenks.Modul   007 0080  
   Revision: --------    Serial number:  90440JIK000CA
   Coding: 108A140000
   Shop #: WSC 00066 000 00185
   ASAM Dataset: EV_SMLSNGKUDS A05001
   ROD: EV_SMLSNGKUDS_A05.rod
   VCID: 72BD272D342E5917CCD-8026

   Multifunction steering wheel control module: 
   Subsystem 1 - Part No SW: 5K0 959 542 A    HW: 5K0 959 542 A  Labels: 3C8-959-537.CLB
   Component: E221__MFL-TAS  H07 0013 
   Serial number: 0053312             
   Coding: 820000

2 Faults Found:
147462 - Terminal 15 
          B1148 12 [008] - Short to Plus
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 4
                    Reset counter: 37
                    Mileage: 91580 km
                    Date: 2019.07.24
                    Time: 03:28:44

147464 - Terminal 15 
          B1148 29 [008] - Signal Implausible
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 16
                    Reset counter: 37
                    Mileage: 91627 km
                    Date: 2019.07.24
                    Time: 04:15:02


-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5K0-920-xxx-17.clb-SRI1
   Part No SW: 5K0 920 971 CX    HW: 5K0 920 971 CX
   Component: KOMBI         H20 0422  
   Serial number: 00000000000000
   Coding: 270F01
   Shop #: WSC 20113 444 00000
   ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04089
   ROD: EV_Kombi_UDS_VDD_RM09_004_VW32.rod
   VCID: 074B66F92FAC4CBF8B3-8052

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels:. 7N0-907-530-V1.clb
   Part No SW: 7N0 907 530 A    HW: 1K0 907 951 
   Component: J533  Gateway   H25 5603  
   Revision:   H25       Serial number: 23101001200352
   Coding: E9807F0600160300002002
   Shop #: WSC 00066 000 00000
   VCID: 2E05F35DEC163DF7685-807A

No fault code found.

-------------------------------------------------------------------------------
Address 1C: Position Sensing        Labels: 1Kx-919-xxx-1C.lbl
   Part No SW: 5N0 919 879     HW: 5N0 919 879 
   Component: Kompass         001 0001  
   Revision: 00001000    Serial number: 1225223RA8NK06
   Coding: 0000002
   Shop #: WSC 00066 000 00000
   VCID: 7EA5031D7CF60D77B85-802A

1 Fault Found:
01316 - ABS Control Module 
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 3
                    Fault Frequency: 9
                    Reset counter: 37
                    Mileage: 91627 km
                    Time Indication: 0
                    Date: 2019.07.24
                    Time: 04:15:10


-------------------------------------------------------------------------------
Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
   Part No SW: 5K0 953 234     HW: 5K0 953 234 
   Component: IMMO          H20 0422  
   Serial number: 00000000000000
   Coding: 000000
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03008
   ROD: EV_Immo_UDS_VDD_RM09.rod
   VCID: 6A8D3F4D1CFE91D774D-803E

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:| 3C0-959-70X-GEN4.clb
   Part No SW: 3C0 959 701 B    HW: 3C0 959 793 
   Component: TUER-SG FT    002 0307  
   Revision: 13101005    Serial number: 0001502959
   Coding: 0004B5
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_DCU42BroseDriveSide A03004
   ROD: EV_DCU42BroseDriveSide_VW36.rod
   VCID: 270B0679CF6C6CBFAB3-8072

   Slave Driver: 
   Subsystem 1 - Part No SW: 1K0 959 703 AH    HW: 1K0 959 795 T  Labels: 1K0-959-70X-GEN4.CLB
   Component: J388__TSG-HL  006 1401 
   Serial number: 00000005264294      
   Coding: 000490

2 Faults Found:
68107 - Function Restricted due to Missing Message(s) 
          U1111 00 [008] - -
          [Front CAN AirBag]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 16
                    Reset counter: 37
                    Mileage: 91627 km
                    Date: 2019.07.24
                    Time: 04:15:02

68108 - Function Restricted due to Missing Message(s) 
          U1111 00 [008] - -
          [Front CAN MSG]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 14
                    Reset counter: 37
                    Mileage: 91627 km
                    Date: 2019.07.24
                    Time: 04:15:06


-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1K0-909-14x-GEN3.clb
   Part No: 1K0 909 144 J
   Component: EPS_ZFLS Kl. 70     3001  
   Revision: 00H17000    
   Shop #: WSC 02069 000 90108
   VCID: 313FE821FD28220F757-8064

No fault code found.

-------------------------------------------------------------------------------
Address 4F: Centr. Electr. II (J520)       Labels:. 1K0-907-532.clb
   Part No SW: 7N0 907 532     HW: 1K0 907 951 
   Component: EZE_2         H25 5603  
   Revision:   H25       Serial number: 23101001200352
   Coding: 050B0500
   Shop #: WSC 00066 000 00000
   VCID: 6FBB2E59279C74FF233-803A

   Subsystem 1 - Part No SW: 8R0 959 591 A    HW: 8R0 959 591 
   Component: J245EE20SKB13  H02 0220 
   Serial number: 0123456789ABCDEFGHIJ

   Subsystem 2 - Part No SW: 8R0 959 591 A    HW: 8R0 959 591 
   Component: J394EE20SKB13  H02 0220 
   Serial number: 0123456789ABCDEFGHIJ

1 Fault Found:
02071 - Local Databus 
            012 - Electrical Fault in Circuit - Intermittent
             Freeze Frame:
                    Fault Status: 00101100
                    Fault Priority: 1
                    Fault Frequency: 1
                    Reset counter: 35
                    Mileage: 91581 km
                    Time Indication: 0
                    Date: 2019.07.24
                    Time: 03:31:22


-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:| 3C0-959-70X-GEN4.clb
   Part No SW: 3C0 959 702 B    HW: 3C0 959 792 
   Component: TUER-SG BT    002 0307  
   Revision: 15101005    Serial number: 0001467173
   Coding: 0004B4
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_DCU52BrosePasseSide A03004
   ROD: EV_DCU52BrosePasseSide_VW32.rod
   VCID: 28090545C27263C7A29-807C

   Slave Passenger: 
   Subsystem 1 - Part No SW: 1K0 959 704 AH    HW: 1K0 959 794 T  Labels: 1K0-959-70X-GEN4.CLB
   Component: J389__TSG-HR  006 1401 
   Serial number: 00000005213659      
   Coding: 000490

2 Faults Found:
68107 - Function Restricted due to Missing Message(s) 
          U1111 00 [008] - -
          [Front CAN AirBag]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 16
                    Reset counter: 37
                    Mileage: 91627 km
                    Date: 2019.07.24
                    Time: 04:15:02

68108 - Function Restricted due to Missing Message(s) 
          U1111 00 [008] - -
          [Front CAN MSG]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 14
                    Reset counter: 37
                    Mileage: 91627 km
                    Date: 2019.07.24
                    Time: 04:15:06


-------------------------------------------------------------------------------
Address 56: Radio (J503)       Labels:. 5M0-035-1xx-56.clb
   Part No SW: 1K0 035 180 AE    HW: 1K0 035 180 AE
   Component: Radio Prem-8  H02 0016  
   Revision: -----16S    Serial number: VWZ4Z7L3228673
   Coding: 01000400020006
   Shop #: WSC 00066 000 00000
   VCID: 63935269FB54C09FB7B-8036

2 Faults Found:
02635 - Tuner Not Enabled/Activated 
            000 - -
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 7
                    Fault Frequency: 1
                    Reset counter: 250
                    Mileage: 91533 km
                    Time Indication: 0
                    Date: 2019.07.23
                    Time: 18:59:32

00625 - Vehicle Speed Signal 
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 6
                    Fault Frequency: 14
                    Reset counter: 37
                    Mileage: 91627 km
                    Time Indication: 0
                    Date: 2019.07.24
                    Time: 04:15:05


-------------------------------------------------------------------------------
Address 77: Telephone (J412)       Labels:| 7P6-035-730.clb
   Part No SW: 7P6 035 730 C    HW: 7P6 035 730 C
   Component: TELEFON       H05 0440  
   Revision: 1B001001    Serial number: 00007668526295
   Coding: 0A00000000010100
   Shop #: WSC 01383 790 50316
   ASAM Dataset: UHVNA A01007
   ROD: UHVNA.rod
   VCID: 323DE72DF4AE19170CD-8066

No fault code found.

End----------(Elapsed Time: 01:25, VBatt start/end: 12.9V/13.0V)-----------
Autoscan after code clear to see which were hard codes:
Code:
Wednesday,24,July,2019,19:29:34:06024
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

Dealer/Shop Name: (REMOVED)

VIN: 3VWML7AJ3BM******   License Plate: 
Mileage: 91700km-56979mi   Repair Order: 


Chassis Type: AJ-VW36 (7N0)
Scan: 01 03 08 09 15 16 17 19 1C 25 42 44 46 4F 52 56 62 72 77

VIN: 3VWML7AJ3BM******   Mileage: 91700km-56979miles

01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
1C-Position Sensing -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
4F-Centr. Electr. II -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
77-Telephone -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (CJA)       Labels: 03L-906-022-CBE.clb
   Part No SW: 03L 997 030 C    HW: 03L 906 019 DA
   Component: R4 2.0l TDI G000SG  9983  
   Revision: 12H10---    Serial number: 00000000000000
   Coding: 0050072
   Shop #: WSC 09198 003 1048576
   VCID: 2E05F35DEC163DF7685-807A

No fault code found.
Readiness: 0 0 0 1 1 

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 1K0-907-379-60EC1F.clb
   Part No SW: 1K0 907 379 BC    HW: 1K0 907 379 BC
   Component: ESP MK60EC1   H30 0106  
   Revision: 00H30001    
   Coding: 114B600C492600FD881206E6921D0042B70000
   Shop #: WSC 00066 000 00000
   VCID: 74B121354EBA5727DE1-8020

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J301)       Labels:| 3C8-907-336.clb
   Part No SW: 3C8 907 336 AJ    HW: 3C8 907 336 AJ
   Component: Climatic      H14 0305  
   Revision: 00009001    
   Coding: 0000001002
   Shop #: WSC 00066 000 00148
   ASAM Dataset: EV_Climatic A01005
   ROD: EV_ClimaBasis_VW36.rod
   VCID: 75B71C3145404E2FE9F-8020

1 Fault Found:
13701936 - Function Restriction due to Faults in Other Modules 
          U1113 00 [009] - -
          [Steuergerät für Bordnetz - bitte Fehlerspeicher auslesen]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 252
                    Mileage: 91703 km
                    Date: 2019.07.24
                    Time: 07:22:00


-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 1K0-937-08x-09.clb
   Part No SW: 5K0 937 087 K    HW: 5K0 937 087 K
   Component: BCM PQ35 H    011 1035  
   Revision: BK011001    
   Coding: 2D380E1F902F3EC4008800816000004401000086535D8560648020000040
   Shop #: WSC 09198 003 1048576
   VCID: 3D27C4113D70D66FE1F-8068

   Subsystem 1 - Part No: 1K1 955 119 F  Labels: 1KX-955-119.CLB
   Component: Wischer 31101  21  0512 
   Coding: 009795

2 Faults Found:
00446 - Function Limitation due to Under-Voltage 
            002 - Lower Limit Exceeded
             Freeze Frame:
                    Fault Status: 01100010
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 252
                    Mileage: 91703 km
                    Time Indication: 0
                    Date: 2019.07.24
                    Time: 07:22:00

             Freeze Frame:
                        Term 15 On
                    Voltage: 12.80 V
                        ON
                        OFF
                        OFF
                        OFF
                        OFF

00532 - Supply Voltage B+ 
            002 - Lower Limit Exceeded
             Freeze Frame:
                    Fault Status: 01100010
                    Fault Priority: 4
                    Fault Frequency: 1
                    Reset counter: 252
                    Mileage: 91703 km
                    Time Indication: 0
                    Date: 2019.07.24
                    Time: 07:22:00

             Freeze Frame:
                        Term 15 On
                    Voltage: 12.80 V
                        ON
                        OFF
                        OFF
                        OFF
                        OFF


-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 5K0-959-655.clb
   Part No SW: 5K0 959 655 B    HW: 5K0 959 655 B
   Component: AirbagVW10G   021 0706  
   Serial number: 003C4R00ZWM6  
   Coding: 00003044
   Shop #: WSC 00066 000 00000
   ASAM Dataset: EV_AirbaVW10SMEVW360 A01012
   ROD: EV_AirbaVW10SMEVW360.rod
   VCID: 392FD00129D8EA4FCD7-806C

   Seat occupied recognition: 
   Subsystem 1 - Part No SW: 1KM 959 339     HW: 1KM 959 339 
   Component: BF-Gewichtss.  007 0001 
   Serial number: ---0000R--0005C82Z00

   Crash sensor for side airbag: driver side: 
   Subsystem 2 - Part No SW: 1KM 955 557     HW: 1KM 955 557 
   Component: S.Sens.Fahr.V  H01 ---- 
   Serial number: 3572MSME6C385157ZZZ/

   Crash sensor for side airbag: front passenger side: 
   Subsystem 3 - Part No SW: 1KM 955 557     HW: 1KM 955 557 
   Component: S.Sens.Beif.V  H01 ---- 
   Serial number: 3582MSME1D663356ZZZ.

   Crash sensor for side airbag: rear: driver side: 
   Component: S.Sens.Fahr.H  --- ---- 
   Serial number: 3511HSME2F480723ZZZM

   Crash sensor for side airbag: rear: passenger side: 
   Component: S.Sens.Beif.H  --- ---- 
   Serial number: 3521HSME76310B24ZZZG

   Crash sensor for front airbag: driver side: 
   Component: F.Sens.Fahr  --- ---- 
   Serial number: 35527SME3F294B23ZZZP

   Crash sensor for front airbag: front passenger side: 
   Component: F.Sens.Beif  --- ---- 
   Serial number: 35627SME7C115123ZZZ9

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:| 5K0-953-569.clb
   Part No SW: 5K0 953 507 BC    HW: 5K0 953 549 E
   Component: Lenks.Modul   007 0080  
   Revision: --------    Serial number:  90440JIK000CA
   Coding: 108A140000
   Shop #: WSC 00066 000 00185
   ASAM Dataset: EV_SMLSNGKUDS A05001
   ROD: EV_SMLSNGKUDS_A05.rod
   VCID: 72BD272D342E5917CCD-8026

   Multifunction steering wheel control module: 
   Subsystem 1 - Part No SW: 5K0 959 542 A    HW: 5K0 959 542 A  Labels: 3C8-959-537.CLB
   Component: E221__MFL-TAS  H07 0013 
   Serial number: 0053312             
   Coding: 820000

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5K0-920-xxx-17.clb-SRI1
   Part No SW: 5K0 920 971 CX    HW: 5K0 920 971 CX
   Component: KOMBI         H20 0422  
   Serial number: 00000000000000
   Coding: 270F01
   Shop #: WSC 20113 444 00000
   ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04089
   ROD: EV_Kombi_UDS_VDD_RM09_004_VW32.rod
   VCID: 074B66F92FAC4CBF8B3-8052

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels:. 7N0-907-530-V1.clb
   Part No SW: 7N0 907 530 A    HW: 1K0 907 951 
   Component: J533  Gateway   H25 5603  
   Revision:   H25       Serial number: 23101001200352
   Coding: E9807F0600160300002002
   Shop #: WSC 00066 000 00000
   VCID: 2E05F35DEC163DF7685-807A

No fault code found.

-------------------------------------------------------------------------------
Address 1C: Position Sensing        Labels: 1Kx-919-xxx-1C.lbl
   Part No SW: 5N0 919 879     HW: 5N0 919 879 
   Component: Kompass         001 0001  
   Revision: 00001000    Serial number: 1225223RA8NK06
   Coding: 0000002
   Shop #: WSC 00066 000 00000
   VCID: 7EA5031D7CF60D77B85-802A

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
   Part No SW: 5K0 953 234     HW: 5K0 953 234 
   Component: IMMO          H20 0422  
   Serial number: 00000000000000
   Coding: 000000
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03008
   ROD: EV_Immo_UDS_VDD_RM09.rod
   VCID: 6A8D3F4D1CFE91D774D-803E

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:| 3C0-959-70X-GEN4.clb
   Part No SW: 3C0 959 701 B    HW: 3C0 959 793 
   Component: TUER-SG FT    002 0307  
   Revision: 13101005    Serial number: 0001502959
   Coding: 0004B5
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_DCU42BroseDriveSide A03004
   ROD: EV_DCU42BroseDriveSide_VW36.rod
   VCID: 270B0679CF6C6CBFAB3-8072

   Slave Driver: 
   Subsystem 1 - Part No SW: 1K0 959 703 AH    HW: 1K0 959 795 T  Labels: 1K0-959-70X-GEN4.CLB
   Component: J388__TSG-HL  006 1401 
   Serial number: 00000005264294      
   Coding: 000490

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1K0-909-14x-GEN3.clb
   Part No: 1K0 909 144 J
   Component: EPS_ZFLS Kl. 70     3001  
   Revision: 00H17000    
   Shop #: WSC 02069 000 90108
   VCID: 313FE821FD28220F757-8064

No fault code found.

-------------------------------------------------------------------------------
Address 4F: Centr. Electr. II (J520)       Labels:. 1K0-907-532.clb
   Part No SW: 7N0 907 532     HW: 1K0 907 951 
   Component: EZE_2         H25 5603  
   Revision:   H25       Serial number: 23101001200352
   Coding: 050B0500
   Shop #: WSC 00066 000 00000
   VCID: 6FBB2E59279C74FF233-803A

   Subsystem 1 - Part No SW: 8R0 959 591 A    HW: 8R0 959 591 
   Component: J245EE20SKB13  H02 0220 
   Serial number: 0123456789ABCDEFGHIJ

   Subsystem 2 - Part No SW: 8R0 959 591 A    HW: 8R0 959 591 
   Component: J394EE20SKB13  H02 0220 
   Serial number: 0123456789ABCDEFGHIJ

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:| 3C0-959-70X-GEN4.clb
   Part No SW: 3C0 959 702 B    HW: 3C0 959 792 
   Component: TUER-SG BT    002 0307  
   Revision: 15101005    Serial number: 0001467173
   Coding: 0004B4
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_DCU52BrosePasseSide A03004
   ROD: EV_DCU52BrosePasseSide_VW32.rod
   VCID: 28090545C27263C7A29-807C

   Slave Passenger: 
   Subsystem 1 - Part No SW: 1K0 959 704 AH    HW: 1K0 959 794 T  Labels: 1K0-959-70X-GEN4.CLB
   Component: J389__TSG-HR  006 1401 
   Serial number: 00000005213659      
   Coding: 000490

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (J503)       Labels:. 5M0-035-1xx-56.clb
   Part No SW: 1K0 035 180 AE    HW: 1K0 035 180 AE
   Component: Radio Prem-8  H02 0016  
   Revision: -----16S    Serial number: VWZ4Z7L3228673
   Coding: 01000400020006
   Shop #: WSC 00066 000 00000
   VCID: 63935269FB54C09FB7B-8036

1 Fault Found:
02635 - Tuner Not Enabled/Activated 
            000 - -
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 7
                    Fault Frequency: 1
                    Reset counter: 252
                    Mileage: 91703 km
                    Time Indication: 0
                    Date: 2019.07.24
                    Time: 07:21:59


-------------------------------------------------------------------------------
Address 77: Telephone (J412)       Labels:| 7P6-035-730.clb
   Part No SW: 7P6 035 730 C    HW: 7P6 035 730 C
   Component: TELEFON       H05 0440  
   Revision: 1B001001    Serial number: 00007668526295
   Coding: 0A00000000010100
   Shop #: WSC 01383 790 50316
   ASAM Dataset: UHVNA A01007
   ROD: UHVNA.rod
   VCID: 323DE72DF4AE19170CD-8066

No fault code found.

End----------(Elapsed Time: 01:23, VBatt start/end: 13.1V/13.1V)-----------
Symptoms (many intermittent)
Code:
1)	No crank
2)	After sitting parked for hours, headlights randomly came on and went off
3)	Headlights and taillights sometimes stay on after car is shut down
4)	Headlights sometimes won’t come on at all
5)	Brights won’t come on, or drop out when they are on
6)	Wipers do not work
7)	Windows will not roll down, or will roll down but not back up
8)	AC does not turn on
9)	Doors will unlock, but not lock
10)	Instrument cluster display does not shut down
11)	Footwell lighting randomly comes on and goes off
12)	Horn does not work
13)	Cruise control does not work
14)	Climate module backlight stays on
15)	Door lock button backlights stay on
16)	Radio is locked, and I don’t have the code
Troubleshooting performed:
Code:
1)	No crank:
a.	Terminal 50 power supply relay (J682):
i.	measured terminal voltages, found power and ground on load side with key in run (terminals 3 and 5 (i.e 30 and 87), but only 1.74 V coming from J519 on the control side, regardless of key position
ii.	successfully push-started car
iii.	jumped J682’s load side terminals with key in run and car started
b.	VCDS shows Terminal 50 CAN-Input ZAS changes from OFF to ON when the key is taken to start, however Terminal 50 CAN-Output BCM never changes
c.	VCDS shows clutch position is sensed by changing from 0 to 1 in measuring block 6

2)	Central Electronic Control Module (J519):
a.	Codes setting following a clearing:
i.	00446 - Function Limitation due to Under-Voltage 002 - Lower Limit Exceeded
ii.	00532 - Supply Voltage B+ 002 - Lower Limit Exceeded
b.	Historical codes:
i.	00927 - Terminal 30 (Right) 011 - Open Circuit: Voltage: 11.90 V
ii.	02391 - Terminal 30 Reference 011 - Open Circuit:  Voltage: 11.85 V
iii.	01117 - Generator Terminal DF Load Signal  008 - Implausible Signal: Voltage: 11.25 V
c.	VCDS measuring block 38 shows implausible for Voltage Term. 30 left, right, and reference
d.	VCDS measuring block 31 shows Load Management is active and 17.75 V for Voltage Term. (30)
e.	Power and ground:
i.	Disconnected J519 connector and measured terminals 
1.	Black connector:
a.	Terminal 1: Fuse 26 on fuse holder B -SB26-: 12.6 V
b.	Terminal 24: Fuse 3 on fuse holder B -SB3-: 12.6 V
c.	Terminal 23: Ground connection 17, in main wiring harness -382- , from July 2010, Ground connection 8, in main wiring harness -373- , from July 2009: 1 ohm
d.	Terminal 42: Ground connection 10, in main wiring harness -375: 0.2 ohm
2.	White connector:
a.	Terminal 1: Fuse 15 on fuse holder C -SC15-: 12.6 V
b.	Terminal 42: 42	Positive connection 4 (30a) in dash panel wiring harness -A168: 12.6 V
c.	Terminal 12: Terminal 15 voltage supply relay -J329-:  60 ohms
d.	Terminal 28: Terminal 75 voltage supply relay 1 -J680: 60 ohms
e.	Terminal 29: Terminal 50 voltage supply relay -J682: 60 ohms
f.	Terminal 52: 367 - ground connection 2, in main wiring harness: 0.2 ohms
3.	Brown connector:
a.	Terminal 1: Positive connection 6 (30a), in dash panel wiring harness -A198- , vacant: 12.6 V
b.	Terminal 42: Fuse 16 on fuse holder B -SB16: 12.6 V
c.	Terminal 5: 367 - ground connection 2, in main wiring harness: 0.6 ohms
ii.	Inspected fuse SB16, found some black residue and minor socket distortion.
1.	Changed fuse, no change
2.	Jumper wire in fuse block, no change
3.	Mechanically agitated fuse, no change
 
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   #2  

Jack@European_Parts

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How about a fresh battery or checking connections to it with a trickle charge and test the DFM for the alternator or faulty clutch freewheel pulley?

Sometimes it's a good idea to read what a scan states huh, and did you JPPSG yet?
 
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vwblues

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All my voltage testing has been done while hooked up to a battery charger. I’m not pursuing a battery or charging issue because the engine cranks normally when I take manual control over the starter relay. If my no-crank were related to the battery or charging system, the engine would not crank whether the start signal was coming from J519 or from me.

I could really use some help understanding the various voltages I’m finding in the VCDS measuring blocks for J519. (all these are measured key on engine off)
  • Measuring Block 031: “Voltage Term.(30)” reads 17.75 V.
  • Measuring Block 038: “Voltage Term. 30 left,” “Voltage Term. 30 right,” and “Voltage Term. 30 refer.” all read “Implausible.” When I hover over the field, it says “Range: 0.0…20.0 V” and “Specification: 11.0…15.0 V.” Does this mean the module is seeing something outside of the given range?
  • Measuring Block 133: “Voltage” reads 12.80 V.
  • Measuring Block 135: “Voltage” reads 7.60 V.
  • Measuring Block 136: “Voltage” reads 10.60 V.
The first two measuring blocks say they are for terminal 30, but their values disagree. The latter three aren’t labeled, but they also disagree. What do I make of these values?
 
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Jack@European_Parts

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All my voltage testing has been done while hooked up to a battery charger. I’m not pursuing a battery or charging issue because the engine cranks normally when I take manual control over the starter relay. If my no-crank were related to the battery or charging system, the engine would not crank whether the start signal was coming from J519 or from me.
I wouldn't assume this if I were you!

Oh those values say your charger is set too high, no and did you know the BCM can shed or shut down components to save as breaker or keep alive?

What about grounds, terminal 50 or X?
 
   #6  

Uwe

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Measuring Block 031: “Voltage Term.(30)” reads 17.75 V.
That's really, excessively high. What kind of charger are you using? Use a volt meter and check if it's really applying that much, and if so, toss it and get a better-behaved charger, because the one that puts nearly 18V into your car is downright dangerous.

Measuring Block 038: “Voltage Term. 30 left,” “Voltage Term. 30 right,” and “Voltage Term. 30 refer.” all read “Implausible.” When I hover over the field, it says “Range: 0.0…20.0 V” and “Specification: 11.0…15.0 V.” Does this mean the module is seeing something outside of the given range?
It's certainly possible that the firmware in the module objects to voltages as high in the previous paragraph and considers it implausibly high.

  • Measuring Block 133: “Voltage” reads 12.80 V.
  • Measuring Block 135: “Voltage” reads 7.60 V.
  • Measuring Block 136: “Voltage” reads 10.60 V.
Unfortunately, those are not documented.

-Uwe-
 
   #7  

vwblues

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From reading SSP 873403 (previous generation design, but closest relevant SSP I could find), I am aware that the BCM performs load management, however it does so with the goal of preserving the ability to start the car. Since it would not make sense for the starter relay to be load managed, that's why I'm focused on the no-start, and not the numerous other electrical function losses. With that said, I am seeing less than 2 volts on my starter relay control side from J519, regardless of the key being in the on or start position. Seeing this is what prompted me to verify that the BCM was seeing the key position; measuring block 63 confirms it is, and yet the BCM is still not producing the correct output (battery voltage).

The charger is an automatic float style, and I've never seen it get above 14.x V. To validate, however, I did go re-perform the measurement.
Conditions: key on, engine off, charger not connected, battery reading 12.07 V at the terminals.
Results:
  • Address 01, measuring block 12: Supply Voltage (Terminal 30) = 11.93 V (known good module reading used for comparison)
  • Address 09, measuring block 31: Voltage Term.(30) = 17.75 V
The 17.75 V reading certainly stands out, however I haven't used VCDS enough to have confidence in calling this a smoking gun for a bad module. That measuring block 31 and 38 both have Terminal 30 measurements and they are different only adds to my confusion. I can't think of anything typical which would cause the high reading beyond what you have all suggested, however I would appreciate a sanity check in this department.
 
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Uwe

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The 17.75 V reading certainly stands out, however I haven't used VCDS enough to have confidence in calling this a smoking gun for a bad module. That measuring block 31 and 38 both have Terminal 30 measurements and they are different only adds to my confusion. I can't think of anything typical which would cause the high reading beyond what you have all suggested, however I would appreciate a sanity check in this department.
If the BCM is showing 17+V when everything else (including an actual volt meter) is showing reasonable voltages, then my gut says that BCM is wonky.

-Uwe-
 
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vwblues

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For anybody reading this thread in the future, my issues were resolved by replacing the body control module. I wrote down my argument for a friend to do an independent review on, and they agreed with my logic, so I spent the $340 with confidence. I've included my write-up below in case it helps anybody else:

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

If a control module is supplied with power and ground, then inputs should produce predictable outputs.

Power: In the fuse component locations (diagrams 802/9 and 802/29), the vehicle electrical control module system (J519) is listed under fuses SB3, SB16, SB26, SC15, SC17, and SC24. These power feeds enter the module at varying locations (fuse number (fuse rating) @ terminal number (diagram number)):
  • SB3 (5 A) @ T52a/24 (91/3)
  • SB16 (30 A) @ T52c/42 (91/3)
  • SB26 (30 A) @ T52a/1 (91/3)
  • SC15 (20 A) @ T52b/1 (91/4)
  • SC17 (10 A) @ T52c/1 (91/16)
  • SC24 (20 A) @ T52b/42 (94/11)
All these terminals measured at battery voltage with the vehicle electrical control module system (J519) plugged in while the key was on and the engine was off, and were able to carry enough current to brightly light a 21 W bulb (10 W bulb used on SB3), thus the control module has adequate power.

Ground: In the vehicle electrical control module system (J519) component locations (diagram 895/19), ground is listed under varying pins (terminal number (diagram number)):
  • T52a/23 (91/14)
  • T52a/42 (91/8)
  • T52b/52 (91/14)
  • T52c/5 (91/14)
With the vehicle electrical control module system (J519) plugged in, the key on, and the engine off, all these terminals measured at 0.00 V with respect to battery negative (showing no high resistance ground) and negative battery voltage with respect to battery positive (showing no open ground). Additionally, all these grounds were able to carry enough current to brightly light a 21 W bulb (10 W bulb used on T52a/23). The control module has adequate grounds.

Input: The owner’s manual (page 182) lists four steps to start the car: 1) depress and hold brake pedal, 2) depress and hold clutch pedal, 3) move gear shifter into neutral, and 4) turn ignition switch to start. (There is no “SAFE” or “Immobilizer active!” message on the instrument cluster, so security permissives are being ruled out (owner’s manual page 179).)
  1. Brake: Power comes from fuse SC2 (diagram 105/5) to the brake lamp switch (F) (diagram 105/15). The switch provides output to the vehicle electrical control module system (J519) (T52c/17) (diagram 105/3) and the engine control module (J623) (T94/21). Measuring block 01-006-2 changes from xxxxxx00 to xxxxxx11 when the brake pedal is depressed, showing the switch is providing output to the engine control module (J623). Terminal T52c/17 measures 0.77 volts when the brake pedal is not depressed and 13.60 volts when it is. This voltage change shows that vehicle electrical control module system (J519) sees the brake pedal input.
  2. Clutch: Power comes from fuse SB22 (diagram 105/4) to the clutch position sensor (G476) (diagram 105/15). The switch provides output to the vehicle electrical control module system system (J519) (T52c/30) (diagram 105/2) and the engine control module (J623) (T94/63). Measuring block 01-006-2 changes from xxxxx0xx to xxxxx1xx when the clutch pedal is depressed, showing the switch is providing output to the engine control module (J623). Terminal T52c/30 measures 14.13 volts when the clutch pedal is not depressed, and 0 volts when it is. This voltage change shows that the vehicle electrical control module system (J519) sees the clutch pedal input.
  3. Neutral: The transmission code is LHD (trunk sticker), which is a 6-speed manual transmission with a part number beginning in 02Q (repair manual number D3E8001FD66). The 02Q transmission does not have a physical neutral switch, only a reverse position switch (F4 shown on component location diagram 851/12). (While there are gear indications on the instrument cluster, they are likely calculated from engine and vehicle speed.) Measuring block 09-064-01 changes from Release P/N (park/neutral): “PN Inactive” to “PN Active” when the clutch is pressed, meaning this permissive must overlap with the clutch permissive.
  4. Ignition: Power comes from fuse SB6 (diagram 105/4) to the steering column electronics control module (J527) (diagram 105/3), through the ignition/starter switch (D), back into the steering column electronics control module (J527), and out to the vehicle electrical control module system (J519) (T52c/14). This terminal measures 0.01 V when the key is in the run position, and battery voltage when the key is turned to the start position. When the key is taken from run to start, measuring block 09-063 changes from Terminal 50 (Hardware): “Term 50 Off,” Terminal 50 (FB): “OFF,” Terminal 50 (CAN-Input ZAS): “OFF,” and Terminal 50 (CAN-Output BCM): “OFF,” to “Term 50 On,” “OFF,” “ON,” and “OFF,” respectively. (Note: FB stands for ?, ZAS stands for zylinderabschaltung or cylinder deactivation, and BCM stands for body control module). The vehicle electrical control module system (J519) sees the ignition switch input.

Output: Upon receiving required inputs, the vehicle electrical control module system (J519) should provide power to the terminal 50 power supply relay (J682) (T52b/29) (diagram 105/3). The terminal voltage does not change from 0.06 volts with respect to the negative battery terminal or negative battery voltage with respect to the positive battery terminal when both the clutch and brake are depressed and the key is taken to start. The resistance between the vehicle electrical control module system (J519) output terminal (T52b/29) and ground is 56.5 ohms with the terminal 50 power supply relay (J682) plugged in, and 3k ohms with the relay removed. The vehicle electrical control module system (J519) is not being shorted to ground, yet it is not producing the expected output.

Conclusion: The vehicle electrical control module system (J519) is faulty. Despite being supplied power and ground, as well as brake, clutch, and ignition inputs, it is not producing an output to energize the terminal 50 power supply relay (J682).

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I did not include this in the write-up, however I measured all of the terminals on the body control module with it plugged in. I was looking for any anomaly which would explain why the body control module failed, but everything was as expected on all of the terminals. Instead of using a piercing probe on the numerous wires, I found it easier to take the cover off the body control module and probe the pins on the printed circuit board. This proved to me that I did not have an issue present which would cause the new module to fail as soon as I plugged it in.

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For comparison, these are my as-left values:
  • Measuring Block 031: “Voltage Term.(30)” reads 14.25 V.
  • Measuring Block 038: “Voltage Term. 30 left,” “Voltage Term. 30 right,” and “Voltage Term. 30 refer.” read 14.20 V, 14.25V, and 14.25 V, respectively.
  • Measuring Block 063: "Terminal 50 (CAN-Output BCM)" now changes from "OFF" to "ON" and the engine cranks.
  • Measuring Block 133: “Voltage” reads 14.40 V
  • Measuring Block 135: The fourth measuring group no longer is labeled "Voltage," and the field now reads "Invalid."
  • Measuring Block 136: “Voltage” still reads 10.60 V.

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Finally, in the 236 miles I've driven the car since replacing the module, only one code has returned:
Code:
Address 4F: Centr. Electr. II (J520)       Labels:. 1K0-907-532.clb
   Part No SW: 7N0 907 532     HW: 1K0 907 951 
   Component: EZE_2         H25 5603  
   Revision:   H25       Serial number: 23101001200352
   Coding: 050B0500
   Shop #: WSC 00066 000 00000
   VCID: 6FBB2E59279C74FF20D-803A

   Subsystem 1 - Part No SW: 8R0 959 591 A    HW: 8R0 959 591 
   Component: J245EE20SKB13  H02 0220 
   Serial number: 0123456789ABCDEFGHIJ

   Subsystem 2 - Part No SW: 8R0 959 591 A    HW: 8R0 959 591 
   Component: J394EE20SKB13  H02 0220 
   Serial number: 0123456789ABCDEFGHIJ

1 Fault Found:
02071 - Local Databus 
            012 - Electrical Fault in Circuit - Intermittent
             Freeze Frame:
                    Fault Status: 00101100
                    Fault Priority: 1
                    Fault Frequency: 1
                    Reset counter: 40
                    Mileage: 92184 km
                    Time Indication: 0
                    Date: 2019.12.06
                    Time: 15:26:14
Note that this code is on a different module, but an electrical fault on the databus is still concerning. However, given the intermittent nature, and single fault frequency, I only plan on trending this for now.
 
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