2013 VW CC almost everything short to ground HELP!

   #1  

Silkrauto

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Hello people!


Im a new member and seeking for advise or guide how to fix this issue with my CC. Almost everything is shorted to ground on this car. We bought it with engine problem, Ive fixed numerous tiguans but its my first CC pretty much same engine. Following job done on it:

1 Timing chain and tensioner replaced (yes, timing set correctly)
2 Valve job done, valve steams replaced.
3 Intake manifold replaced with new fromVW dealership
4 Turbo wastegate flapper replaced (yes, we do repair them instead of replacing the whole turbo)
5 rear main seal replaced
6 injectors cleaned


After all of this work done we were super excided itll run with no issues, however the car still having a hard time starting on cold start with black smoke from tailpipe and chek engine light is on. once its warmed up it runs great.
We found that the wire behind the brake booster was melted, and 5 wires were shorting, so to be on safe side we split open all wiring harness under the hood with extra caution not to cut any wires and inspected them so, no other shorting wires found. Put everything back together and took it local mechanic and he advised the ECM is toasted. so we ordered a used ECM from ebay and had the dealer swap it but the problem is still there.


Any thoughts highly appreciated! the auto scan results below.


Code:
Friday,13,September,2019,09:33:18:26593
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 19.6.1.0 (x64)  HEX-NET CB: 0.4508.4
Data version: 20190529 DS308.0
[url]www.Ross-Tech.com[/url]




Chassis Type: AN-VW46 (7N0)
Scan: 01 02 03 08 09 15 16 17 19 1C 25 2E 42 44 46 4F 52 53 55 56
          62 65 72 77

VIN: WVWBP7AN7DE510121   Mileage: 216640km-134613miles

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- 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: OK 0000
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
2E-Media Player 3 -- 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: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
55-Headlight Range -- Status: Malfunction 0010
56-Radio -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
65-Tire Pressure -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
77-Telephone -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (CCT)       Labels:. 06J-906-026-CCT.clb
   Part No SW: 06J 906 027 FE    HW: 06J 907 309 B
   Component: MED17.5.2 TFSI 2    3952  
   Revision: PAH04---    Serial number: VWZCZ000000000
   Coding: 0404010A1C070160
   Shop #: WSC 02503 444 04883
   VCID: 73A6CB5012D2C9D794-8026

8 Faults Found:
001112 - Evap System Purge Control Valve (N80) 
               P0458 - 000 - Short to Ground - MIL ON
             Freeze Frame:
                    Fault Status: 11100000
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 216639 km
                    Time Indication: 0
                    Date: 2014.02.02
                    Time: 17:23:54

             Freeze Frame:
                    RPM: 0 /min
                    Load: 0.0 %
                    Speed: 0.0 km/h
                    Temperature: 95.0°C
                    Temperature: 35.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 14.224 V

004501 - Fuel Pressure Regulator Valve (N276) 
               P1195 - 000 - Open or Short to Ground - MIL ON
             Freeze Frame:
                    Fault Status: 11100000
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 216639 km
                    Time Indication: 0
                    Date: 2014.02.02
                    Time: 17:23:54

             Freeze Frame:
                    RPM: 0 /min
                    Load: 0.0 %
                    Speed: 0.0 km/h
                    Temperature: 95.0°C
                    Temperature: 35.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 14.224 V

012423 - Voltage Supply Relay for Engine Components 
               P3087 - 000 - Electrical Malfunction - MIL ON
             Freeze Frame:
                    Fault Status: 11100000
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 216639 km
                    Time Indication: 0
                    Date: 2014.02.02
                    Time: 17:23:54

             Freeze Frame:
                    RPM: 0 /min
                    Load: 0.0 %
                    Speed: 0.0 km/h
                    Temperature: 95.0°C
                    Temperature: 35.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 14.224 V

008201 - Intake Manifold Flap; Bank 1 
               P2009 - 000 - Short to Ground - MIL ON
             Freeze Frame:
                    Fault Status: 11100000
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 216639 km
                    Time Indication: 0
                    Date: 2014.02.02
                    Time: 17:23:59

             Freeze Frame:
                    RPM: 288 /min
                    Load: 51.0 %
                    Speed: 0.0 km/h
                    Temperature: 95.0°C
                    Temperature: 35.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 11.811 V

008328 - Bank 1 Camshaft A (Intake) Position Actuator 
               P2088 - 000 - Short to Ground - MIL ON
             Freeze Frame:
                    Fault Status: 11100000
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 216639 km
                    Time Indication: 0
                    Date: 2014.02.02
                    Time: 17:23:59

             Freeze Frame:
                    RPM: 288 /min
                    Load: 51.0 %
                    Speed: 0.0 km/h
                    Temperature: 95.0°C
                    Temperature: 35.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 11.811 V

000581 - Solenoid Valve  for Boost Pressure Control (N75) 
               P0245 - 000 - Short to Ground - MIL ON
             Freeze Frame:
                    Fault Status: 11100000
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 216639 km
                    Time Indication: 0
                    Date: 2014.02.02
                    Time: 17:23:59

             Freeze Frame:
                    RPM: 288 /min
                    Load: 51.0 %
                    Speed: 0.0 km/h
                    Temperature: 95.0°C
                    Temperature: 35.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 11.811 V

000052 - Turbocharger Bypass Valve Control Circuit 
               P0034 - 000 - Low
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 216639 km
                    Time Indication: 0
                    Date: 2014.02.02
                    Time: 17:23:59

             Freeze Frame:
                    RPM: 288 /min
                    Load: 51.0 %
                    Speed: 0.0 km/h
                    Temperature: 95.0°C
                    Temperature: 35.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 11.811 V

001681 - Fan 1 Control Circuit 
               P0691 - 000 - Short to GND
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 216639 km
                    Time Indication: 0
                    Date: 2014.02.02
                    Time: 17:24:03

             Freeze Frame:
                    RPM: 942 /min
                    Load: 16.1 %
                    Speed: 0.0 km/h
                    Temperature: 95.0°C
                    Temperature: 34.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 14.097 V

Readiness: 1110 0101

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 02E-927-770.clb
   Part No SW: 02E 300 058 N    HW: 02E 927 770 AL
   Component: GSG DSG AG6     512 3509  
   Revision: 05551213    Serial number: 00001204132398
   Coding: 0000020
   Shop #: WSC 05311 000 00000
   VCID: 2502E508EC86E767CA-8070

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 3AA-614-109.clb
   Part No SW: 3AA 614 109 AF    HW: 3AA 614 109 AF
   Component: J104   C2 450M V45C 0023  
   Revision: --H07---    Serial number: 00000005693371
   Coding: 0004495
   Shop #: WSC 05311 000 00000
   VCID: 71AAC15868CEFBC766-8024

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels:| 5K0-907-044.clb
   Part No SW: 3AA 907 044 J    HW: 3AA 907 044 J
   Component: Climatronic   H03 0101  
   Revision: 00001K03    
   Coding: 0010001008
   Shop #: WSC 00015 115 00000
   ASAM Dataset: EV_Climatronic A01010
   ROD: EV_ClimaAutoBasis_VW46.rod
   VCID: 373E3F408E2A65F768-8062

2 Faults Found:
13701888 - Function Restriction due to Faults in Other Modules 
          U1113 00 [009] - -
          [Motorsteuergerät - bitte Fehlerspeicher auslesen]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 47
                    Reset counter: 92
                    Mileage: 216621 km
                    Date: 2019.08.30
                    Time: 17:03:46

9481200 - Refrigerant Pressure 
          B10AB F0 [009] - Too Low
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 88
                    Mileage: 216621 km
                    Date: 2019.08.30
                    Time: 17:03:46


-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 3AA-937-087.clb
   Part No SW: 3AA 937 087 J    HW: 3AA 937 087 J
   Component: BCM PQ47 H++  421 0465  
   Revision: BD421001    
   Coding: 0008000000000000008802819400094C2055000840200D20E484402400C0
   Shop #: WSC 05311 000 00000
   VCID: 41CA5198D8EE2B47D6-8014

   Subsystem 1 - Part No SW: 3C8 955 119 F    HW: 3C8 955 119 F  Labels: 1KX-955-119.CLB
   Component: WWS464 120412  010 0604 
   Serial number: 120412
   Coding: 00B795

   Subsystem 2 - Part No SW: 7N0 955 559     HW: 7N0 955 559   Labels: 7N0-955-559.CLB
   Component: RLFS  021 0024 
   Serial number: Y12M04D23h08m20s09S4
   Coding: 0280DD

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 5N0-959-655.lbl
   Part No SW: 5N0 959 655 T    HW: 5N0 959 655 T
   Component: J234__713 VW10 HI   2118  
   Revision: 24017000    Serial number: 003LDP8URR3S  
   Coding: 0012595
   Shop #: WSC 05311 000 00000
   VCID: 4ED07AA4D9B0C43F5B-801A

   Subsystem 1 - Part No: 3C8 959 339 A
   Component: BF-Gewichtsens. 003 0001

   Subsystem 2 - Serial number: 000000000087MA

   Subsystem 3 - Serial number: 0031.03.120000300000850020ÿ†63

   Subsystem 4 - Serial number: 850020ÿ†6332MTS690810932 ÿ†63

   Subsystem 5 - Serial number: 10932 ÿ†6342MTS695460902 ÿ†63

   Subsystem 6 - Serial number: 60902 ÿ†6351HTS65DL82BKJ ÿ†63

   Subsystem 7 - Serial number: 82BKJ ÿ†6361HTS63GE65BKJ ÿ†63

   Subsystem 8 - Serial number: 65BKJ ÿ†63727TS6PGAN1BKR ÿ†63

   Subsystem 9 - Serial number: N1BKR ÿ†63827TS6SDQM1BKR ÿ

   Subsystem 10 - Serial number: M1BKR ÿ

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:| 3C0-953-569.clb
   Part No SW: 3C5 953 501 BG    HW: 5K0 953 569 T
   Component: LENKS.MODUL   014 0140  
   Revision: FF010041    Serial number: 20120504200566
   Coding: 098A270000
   Shop #: WSC 00015 115 00000
   ASAM Dataset: EV_VW360SteerWheelUDS A03004
   ROD: EV_VW360SteerWheelUDS.rod
   VCID: 6B96D33082E211175C-803E

   Multifunction steering wheel control module: 
   Subsystem 1 - Part No SW: 3C8 959 537 D    HW: 3C8 959 537 D  Labels: 3C8-959-537.CLB
   Component: E221__MFL-TK6  H07 0022 
   Coding: E20000

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 3C8-920-xxx-17.clb-SRI1
   Part No SW: 3C8 920 970 T    HW: 3C8 920 970 T
   Component: KOMBI         H04 0609  
   Serial number: 00000000000000
   Coding: 240F00
   Shop #: WSC 05314 115 00000
   ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04114
   ROD: EV_Kombi_UDS_VDD_RM09_004_VW32.rod
   VCID: 3D322D68AC164FA7B2-8068

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 7N0-907-530-V2.clb
   Part No SW: 7N0 907 530 Q    HW: 1K0 907 951 
   Component: J533  Gateway H41 1623  
   Revision:   H41       Serial number: 280412F1000512
   Coding: 469006
   Shop #: WSC 05314 000 00000
   VCID: 3E302A64A91054BFAB-806A

No fault code found.

-------------------------------------------------------------------------------
Address 1C: Position Sensing        Labels: 1Kx-919-xxx-1C.lbl
   Part No SW: 3C8 919 965     HW: 3C8 919 965 
   Component: Kompass         001 0001  
   Revision: 00001000    Serial number: 1614128R33NZ03
   Coding: 0000002
   Shop #: WSC 05314 000 00000
   VCID: 75A2F5481CA6D7E7BA-8020

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 3C0-959-433-25.clb
   Part No SW: 3AA 959 433 A    HW: 3AA 959 433 A
   Component:    IMMO         042 0400  
   Revision: 00042000    Serial number: VWZCZ000000000
   Shop #: WSC 00395 444 21201
   VCID: 373E3F40462A65F768-8062

   Subsystem 1 - Part No: 3C0 905 861 J
   Component:    ELV          029 0380
   3C0905861J     ELV          029 0380   

No fault code found.

-------------------------------------------------------------------------------
Address 2E: Media Player 3 (J650)       Labels:. 5N0-035-342.lbl
   Part No SW: 5N0 035 342 E    HW: 5N0 035 342 E
   Component: SG EXT.PLAYER H13 0240  
   Revision: A1001003    Serial number: 7662439425    
   Coding: 010000
   Shop #: WSC 05314 000 00000
   VCID: 291AE938409EC307EE-807C

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:| 3C0-959-70X-GEN4.clb
   Part No SW: 3C8 959 701     HW: 3C0 959 793 C
   Component: TUER-SG FT    002 0551  
   Revision: 12110009    Serial number: 0004840636
   Coding: 0004B7
   Shop #: WSC 05311 115 00000
   ASAM Dataset: EV_TSGFPQ35BRFVW46X A04001
   ROD: EV_TSGFPQ35BRFVW46X_VW32.rod
   VCID: 6D92DD28BCF61F2742-8038

   Slave Driver: 
   Subsystem 1 - Part No SW: 3C8 959 703 D    HW: 3C8 959 795   Labels: 1K0-959-70X-GEN4.CLB
   Component: J388__TSG-HL  004 0501 
   Serial number: 00000002872047      
   Coding: 010490

1 Fault Found:
66048 - Motor for Front Window Regulator 
          B11EC 54 [008] - Missing Calibration / Basic Setting
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 7
                    Fault Frequency: 1
                    Reset counter: 130


-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 5N1-909-144.clb
   Part No SW: 5N1 909 144 M    HW: 5N1 909 148 G
   Component: J500__APA-BS KL.302 1002  
   Revision: 1AH03734    Serial number: 00121050056401
   Coding: 0000258
   Shop #: WSC 05311 000 00000
   VCID: 3C34206C7F0C46AF85-8068

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 3C0-959-433-46.clb
   Part No SW: 3AA 959 433 A    HW: 3AA 959 433 A
   Component:    KSG PQ47 ELV 042 0634  
   Revision: 00042000    Serial number: VWZCZ000000000
   Coding: 1B910F8001862E521204141FF08A0F0E105801
   Shop #: WSC 00395 444 21201
   VCID: 373E3F40462A65F768-8062

   Subsystem 1 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HORN H05 1501

   Subsystem 2 - Component:       NGS n.mounted     

   Subsystem 3 - Component:      IRUE n.mounted     

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         H41 1623  
   Revision:   H41       Serial number: 280412F1000512
   Coding: 00000008
   Shop #: WSC 05314 000 00000
   VCID: 6FAEC720BEFAED3770-803A

   Subsystem 1 - Part No SW: 3C8 919 204 A    HW: 3C8 919 204 A
   Component: Analoguhr  005 0003 

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:| 3C0-959-70X-GEN4.clb
   Part No SW: 3C8 959 702     HW: 3C0 959 792 C
   Component: TUER-SG BT    002 0551  
   Revision: 14110009    Serial number: 0004870797
   Coding: 0004B6
   Shop #: WSC 05311 115 00000
   ASAM Dataset: EV_TSGBPQ35BRFVW46X A04001
   ROD: EV_TSGBPQ35BRFVW46X_VW32.rod
   VCID: 6E90DA24B1F0E43F7B-803A

   Slave Passenger: 
   Subsystem 1 - Part No SW: 3C8 959 704 D    HW: 3C8 959 794   Labels: 1K0-959-70X-GEN4.CLB
   Component: J389__TSG-HR  004 0501 
   Serial number: 00000002882748      
   Coding: 010490

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake        Labels: 3AA-907-801.clb
   Part No SW: 3AA 907 801 H    HW: 3AA 907 801 H
   Component: J540 EPB4  VW-86594 0010  
   Revision:   H19       Serial number: 00000000175606
   Coding: 0022156
   Shop #: WSC 05311 000 00000
   VCID: 3620324441209CFF73-8062

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range (J745)       Labels:. 5M0-907-357-V3.clb
   Part No SW: 5M0 907 357 F    HW: 7L6 907 357 C
   Component: AFS-ECU       H04 0111  
   Revision: --------    Serial number: --------------
   Coding: 071200010B000400
   Shop #: WSC 05311 115 00000
   ASAM Dataset: EV_HeadlRegulVWAFSPt 002016
   ROD: EV_HeadlRegulVWAFSPt_VW46.rod
   VCID: 373E3F408E2A65F768-8062

   Subsystem 1 - Part No SW: 1T0 941 329     HW: 1T0 941 329   Labels: 3D0-941-329.CLB
   Component: LeiMo links  H06 0007 
   Coding: 350000

   Subsystem 2 - Part No SW: 1T0 941 329     HW: 1T0 941 329   Labels: 3D0-941-329.CLB
   Component: LeiMo rechts  H06 0007 
   Coding: 350000

1 Fault Found:
5276691 - Stationary Cornering Lamp Right 
          C1084 13 [009] - Open Circuit
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 89
                    Mileage: 216631 km
                    Date: 2019.09.01
                    Time: 00:58:07


-------------------------------------------------------------------------------
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: VWZ4Z7M1116764
   Coding: 0100040004000F
   Shop #: WSC 05311 000 00000
   VCID: 6386BB1062325957E4-8036

1 Fault Found:
02635 - Tuner Not Enabled/Activated 
            000 - -
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 7
                    Fault Frequency: 1
                    Reset counter: 88
                    Mileage: 216621 km
                    Time Indication: 0
                    Date: 2014.01.20
                    Time: 17:03:46


-------------------------------------------------------------------------------
Address 65: Tire Pressure (J502)       Labels: 3AA-907-273.clb
   Part No SW: 3AA 907 273 D    HW: 3AA 907 273 D
   Component: RDKBERU30     H09 0010  
   Serial number: 10000000120754
   ASAM Dataset: EV_RDKBERU30 003012
   ROD: EV_RDKBERU30_003.rod
   VCID: 35223548942697E77A-8060

No fault code found.

-------------------------------------------------------------------------------
Address 77: Telephone (J412)       Labels:| 7P6-035-730.clb
   Part No SW: 5K0 035 730 E    HW: 5K0 035 730 E
   Component: TELEFON       H09 2902  
   Revision: 1B001001    Serial number: 00007661339550
   Coding: 0A10040000010110
   Shop #: WSC 22503 444 103858
   ASAM Dataset: EV_UHVNA A01719
   ROD: UHVNA.rod
   VCID: 271EEF005E8AF577F8-8072

No fault code found.

End----------(Elapsed Time: 01:45, VBatt start/end: 12.6V/12.5V)-----------
 
Last edited by a moderator:
   #2  

downtime

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Looking at the error codes I would say you still have shorting wire somewhere in the engine bay.

Do you have factory wiring diagram for your car? If not buy 1 hour from Erwin and print the engine bay wiring diagrams. Especially check the wiring from the modules giving the errors. They most likely have common feed which is shorted at some point.
 
   #3  

Silkrauto

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Looking at the error codes I would say you still have shorting wire somewhere in the engine bay.

Do you have factory wiring diagram for your car? If not buy 1 hour from Erwin and print the engine bay wiring diagrams. Especially check the wiring from the modules giving the errors. They most likely have common feed which is shorted at some point.

I do not have a wiring diagram, however all wires has been checked for each module...…..
 
   #4  

MasterTommy

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Not experienced with this model, but did you remove any engine mounts? If so, were there any 'oh shit forgot to unplug this wire' moments? Aka did any wiring come under mechanical stress. If so any spot theyre mounted to a bracket or feeded through the firewall should be checked.
 
   #5  

downtime

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I do not have a wiring diagram, however all wires has been checked for each module...…..
I’m sorry but I’ve heard this comment so many times and then when they’re checked against the diagrams, oops, broken or shorted wire :)

Anyway, with the diagrams you are able to pinpoint from which pins you should have what and then debug using good old fashioned multimeter.

Then one thing, check the relays in the engine fuse box. The short might be in the relay as well.
 
   #6  

morski

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What caused the wires to melt in the first place? Definitely looks like a wiring issue where there could be more damaged wiring further up/down in the loom. I would suggest getting hold of a engine bay wiring loom and refitting that and not waste time trying to repair the original unless you are ok with unwrapping big sections of it
 
   #7  

Uwe

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"Short to GND" can also be caused by a lack of +12V on the other side of the actuator. Most actuators are low-side switched, in other words they have +12V on the one side all the time and the ECU switches the other side to GND in order to turn on that actuator. If there's no +12 on the ECU's input when the switching element is off, it will report "Short to GND".

Check wiring diagram for a common source of +12 for these actuators. The problem may be as simple as a blown fuse or a relay that isn't closing.

-Uwe-
 
   #8  

Silkrauto

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Uwe, you might be right. Here is the one code for battery terminal..... 012423 -
(Voltage Supply Relay for Engine Components P3087 - 000 - Electrical Malfunction - MIL ON)
 
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Silkrauto

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Downtime, there is only two relays in the engine bay fuse box. Ive tried to replace them but nothing....
 
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Silkrauto

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What caused the wires to melt in the first place? Definitely looks like a wiring issue where there could be more damaged wiring further up/down in the loom. I would suggest getting hold of a engine bay wiring loom and refitting that and not waste time trying to repair the original unless you are ok with unwrapping big sections of it
Im not sure what caused it to melt, that was right behind the break booster pump (same on all 2.0 tsi between 09-14- Tiguan, passat, jetta, GTI, golf) Ive replaced so many booster gaskets but never seen the wire damage at that place.
 
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Silkrauto

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What caused the wires to melt in the first place? Definitely looks like a wiring issue where there could be more damaged wiring further up/down in the loom. I would suggest getting hold of a engine bay wiring loom and refitting that and not waste time trying to repair the original unless you are ok with unwrapping big sections of it
Not sure what caused it, I did already unwrap and put back 85% of under hood wires related to all faulty modules. However I haven't check the positive feed to alternator side. The code below refers to battery terminal wiring:

012423 - Voltage Supply Relay for Engine Components
P3087 - 000 - Electrical Malfunction - MIL ON
 
   #13  

Gremling

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Try to disconnect cables/penetrator from alternator, clear fault codes and perform scan. There has been some issues where diode brigde in alternator fails, and this drags down/short the 12VDC. Check engine component current supply relay J757 in Fuseholder B, and Terminal 15 voltage supply relay J329.
Do you have issues with cruise control as well??
I do am not mistaken the many of the modules you have problems with, has 1 common -> connection 87a, which should be positive connection (no13), please check this, and the wiring between these sensors and Red and white in engine compartment harness.

Regards
Gremling
 
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Silkrauto

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Yaaaaaassss!!!! Problem solved!!!

Tracked down the shorted wire, it was on transmission!


All suggestions, advise and opinions highly appreciated!!!
 
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