Hi There, this is my first post so I hope I'm posting in the right place. My golf cranks and wont start but sometimes it intermittently starts about every 5th or 6th attempt. I put VCDS on and read the codes. It is saying I have communication errors with most of the modules. I have checked the main supply voltages going to the ECU (big pins) They seem ok. (004 - No Signal/Communication - Intermittent)
I would be grateful for any help. Can anybody steer me in the right direction.

See copy of VCDS readout.

Saturday,23,November,2019,12:03:52:16946
AFTER STARTING
Mileage: 156590km-97300mi Repair Order:


Chassis Type: 1K (1K0)
Scan: 01 03 08 09 15 16 17 19 25 42 44 46 52 56 62 72 7D

VIN: WVWZZZ1KZ5W569236 Mileage: 156590km-97300miles

00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: Malfunction 1010
03-ABS Brakes -- Status: Malfunction 0010
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: Malfunction 0010
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: Malfunction 0010
46-Central Conv. -- Status: Malfunction 0010
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
7D-Aux. Heat -- Status: OK 0000

-------------------------------------------------------------------------------
Address 01: Engine Labels: 03G-906-016-BKC.clb
Part No SW: 03G 906 016 R HW: 028 101 222 0
Component: R4 1,9L EDC 0000SG 7001
Revision: 12345678 Serial number: VWZ7Z0E2073481
Coding: 0000071
Shop #: WSC 01392 785 00200
VCID: 326B7CFEAD6D53D657-8066

4 Faults Found:
19558 - Motor for Intake Manifold Flap (V157)
P3102 - 000 - No Signal
Freeze Frame:
RPM: 0 /min
Torque: 117.1 Nm
Speed: 0.0 km/h
Load: 0.0 %
Voltage: 13.60 V
Bin. Bits: 00000100
Torque: 0.0 Nm
Torque: 351.4 Nm

18617 - Engine Coolant Temp Sensor on Radiator Outlet (G83)
P2185 - 000 - Signal too High
Freeze Frame:
RPM: 0 /min
Torque: 117.1 Nm
Speed: 0.0 km/h
Load: 0.0 %
Voltage: 13.60 V
Bin. Bits: 00000100
Temperature: 6.3°C
Temperature: 6.3°C

19557 - Motor for Intake Manifold Flap (V157)
P3101 - 000 - Open or Short to Ground
Freeze Frame:
RPM: 0 /min
Torque: 117.1 Nm
Speed: 0.0 km/h
Load: 0.0 %
Voltage: 13.60 V
Bin. Bits: 00000100
Torque: 0.0 Nm
Torque: 351.4 Nm

17075 - Fan 1 Control Circuit
P0691 - 000 - Short to GND
Freeze Frame:
RPM: 0 /min
Torque: 117.1 Nm
Speed: 0.0 km/h
Load: 0.0 %
Voltage: 13.60 V
Bin. Bits: 00000100
Temperature: 6.3°C
Duty Cycle: 9.6 %

Readiness: 0 0 1 0 1

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 1K0-907-379-MK60-F.lbl
Part No: 1K0 907 379 K
Component: ESP FRONT MK60 0104
Coding: 0021234
Shop #: WSC 00887 210 63848
VCID: 3A7B54DE751DAB969F-806E

1 Fault Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent

-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 1K0-820-047.lbl
Part No: 1K0 820 047 DF
Component: Climatic PQ35 090 0505
Shop #: WSC 00000 000 00000
VCID: 6BD5A19A4AC7C21E54-803E

1 Fault Found:
00898 - Control Circuit A/C compressor
010 - Open or Short to Plus

-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels:. 3C0-937-049-23-M.lbl
Part No SW: 1K0 937 049 M HW: 1K0 937 049 M*
Component: Bordnetz-SG H37 0803
Revision: 00H37000 Serial number: 00000001814535
Coding: 00890F2600041800000A00000F000000000859035C
Shop #: WSC 00000 000 00000
VCID: 39794BD2701BA08E96-806C

Subsystem 1 - Part No: 5M0 955 119
Component: Wischer VW359 012 0402
Coding: 00065493
Shop #: WSC 00000

2 Faults Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
00447 - Function Limitation due to Over-Voltage
001 - Upper Limit Exceeded - Intermittent

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 1K0-909-605.lbl
Part No SW: 1K0 909 605 N HW: 1K0 909 605 N
Component: 15 AIRBAG VW8 015 2100
Revision: 03015000 Serial number: 0038ED0D1P6/
Coding: 0012597
Shop #: WSC 01373 785 00200
VCID: 377D4DEA460FB6FE60-8062

Subsystem 1 - Serial number: 6332MSME0A18080EC

Subsystem 2 - Serial number: 6342MSME08667715C

Subsystem 3 - Serial number: 6351HSME072F1B6FO

Subsystem 4 - Serial number: 6361HSME0740584FB

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 1K0-953-549-MY8.lbl
Part No SW: 1K0 953 549 E HW: 1K0 953 549 E
Component: Lenksäulenmodul 521 0050
Coding: 0000002
Shop #: WSC 01392 785 00200
VCID: 34677AE657795DE645-8060

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 1K0-920-xxx-17.lbl
Part No: 1K0 920 951 K
Component: KOMBIINSTRUMENT VDD 0716
Coding: 0003403
Shop #: WSC 80093 222 69422
VCID: 316973F2A86B68CE2E-8064

1 Fault Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent

-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels:. 1K0-907-530-V1.clb
Part No SW: 1K0 907 530 F HW: 1K0 907 951
Component: Gateway H10 0120
Revision: H10 Serial number: 28001055110B9C
Coding: 3D3F0B40079003
Shop #: WSC 01392 785 00200
VCID: 2A5B649E85BD1B16EF-807E

1 Fault Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 2
Fault Frequency: 3
Reset counter: 150
Mileage: 156591 km
Time Indication: 0
Date: 2000.00.00
Time: 20:33:59


-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 1K0-920-xxx-25.clb
Part No: 1K0 920 951 K
Component: IMMO VDD 0716
Shop #: WSC 00000 000 00000
VCID: 316973F2A86B68CE2E-8064

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver Labels: 1K0-959-701-MIN2.lbl
Part No: 1K0 959 701 K
Component: Tuer-SG 024 2320
Coding: 0000692
Shop #: WSC 01392 785 00200
VCID: 366340EE41054FF67B-8062

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist Labels: 1Kx-909-144-G2V2.clb
Part No: 1K2 909 144 H
Component: EPS_ZFLS Kl.12 1502
Shop #: WSC 00000 000 00000
VCID: 316973F2A86B68CE2E-8064

2 Faults Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
Freeze Frame:
Mileage: 6560 km
Temperature: 22.0°C
Voltage: 12.50 V
Voltage: 12.30 V

00778 - Steering Angle Sensor (G85)
000 - -
Freeze Frame:


-------------------------------------------------------------------------------
Address 46: Central Conv. Labels:. 1K0-959-433-MIN.clb
Part No: 1K0 959 433 AK
Component: KSG 0401
Coding: 00C802087F2D8404085F018010CC
Shop #: WSC 01392 785 00200
VCID: 79F98BD2309B608ED6-802C

Subsystem 1 - Component: Sounder n.mounted

Subsystem 2 - Component: NGS n.mounted

Subsystem 3 - Component: IRUE n.mounted

2 Faults Found:
00668 - Supply Voltage Terminal 30
001 - Upper Limit Exceeded - Intermittent
00931 - Locking Module for Central Locking; Rear Right (F223)
012 - Electrical Fault in Circuit

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. Labels: 1K0-959-702-MIN2.lbl
Part No: 1K0 959 702 K
Component: Tuer-SG 024 2320
Coding: 0000692
Shop #: WSC 01392 785 00200
VCID: 377D4DEA460FB6FE60-8062

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio Labels: 1K0-035-1xx-56.lbl
Part No: 1K0 035 186 L
Component: Radio BVX 012 0022
Coding: 0020200
Shop #: WSC 01279 785 00200
VCID: 2F6D758ABE5F7E3E38-807A

2 Faults Found:
00875 - Treble Speaker Front Right (R22)
011 - Open Circuit
00871 - Bass Speaker Front Right (R23)
011 - Open Circuit

-------------------------------------------------------------------------------
Address 62: Door, Rear Left Labels: 1K0-959-703-GEN2.lbl
Part No: 1K0 959 703 F
Component: Tuer-SG 021 2412
Coding: 0000144
Shop #: WSC 01392 785 00200
VCID: 336579FA52775ADE5C-8066

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right Labels: 1K0-959-704-GEN2.lbl
Part No: 1K0 959 704 F
Component: Tuer-SG 021 2412
Coding: 0000144
Shop #: WSC 01392 785 00200
VCID: 34677AE657795DE645-8060

No fault code found.

-------------------------------------------------------------------------------
Address 7D: Aux. Heat Labels: 1K0-963-235.lbl
Part No SW: 1K0 963 235 E HW: 1K0 963 235 E
Component: PTC-Element 0404
Revision: 00800000 Serial number:
Shop #: WSC 00000 000 00000
VCID: 2D516F82B4530C2E0A-8078

No fault code found.

End-------------------------(Elapsed Time: 01:40)--------------------------

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Address 01: DTCs cleared
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Address 01: DTCs cleared

 

First posts normally go in introductions else you could get a free fix and we never see you again!!!

Default Welcome to Volkswagen Forum - Rules & Recommendations
EOBD II Error Code: P3102

Fault Location:
Intake Manifold Flap Motor (V157) - No Signal

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.
Hard Shudder when turning OFF the Engine.

Fuse(s).
Wiring/Connector(s) from/to Intake Manifold Flap Motor (V157) faulty.
Intake Manifold Flap Motor (V157) faulty.

Possible Solutions:
Check/Replace Fuse(s).
Check/Replace Wiring/Connector(s) from/to Intake Manifold Flap Motor (V157).
Check/Replace Intake Manifold Flap Motor (V157).
Perform Output Test.


EOBD II Error Code: P3101



Fault Location:
Intake Manifold Flap Motor (V157) - Open Circuit/Short Circuit to Earth

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.
Increased Fuel Consumption.
Engine shut-off delayed/rough.
Insufficient Acceleration above 100-120 km/h (60-70 mph).

Fuse(s).
Wiring/Connector(s) short to earth.
Intake Manifold Flap Motor (V157).

Possible Solutions:
Check/Replace Fuse(s).
Check/Replace all faulty Wiring/Connector(s).
Read Measuring Value Blocks (MVB).
Check/Replace Intake Manifold Flap Motor (V157).

Special Notes:
The Intake Manifold Flap Motor (V157) has a Function in the Exhaust Gas Recirculation (EGR) and in shutting off the diesel engine.

EOBD II Error Code: P0691

Fault Location:
Fan 1 Control Circuit - Short Circuit to Earth

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.
Radiator fan inoperative.
Possible engine overheating.

Fuse(s).
Wiring/Connector(s) short to earth.
Low Speed Radiator Fan Relay.
Engine coolant blower motor.
Engine Control Module (ECM).

Possible Solutions:
Check/Replace all faulty Wiring/Connector(s).
Read Measuring Value Blocks (MVB).

Description:
The Engine Control Module (ECM) monitors the Cooling Fan 1 Control Circuit. The ECM sets the OBD II code when the Cooling Fan 1 Control Circuit is not to the factory specifications.

Fault Location:
Control Circuit A/C Compressor - Open Circuit/Short Circuit to Earth/Positive/Implausible Signal

Possible Cause:
Climate Control not working.

Fuse(s).
Wiring and/or Connector(s) from/to A/C Compressor Regulating Valve (N280) faulty.
A/C Compressor Regulating Valve (N280) faulty.
HVAC Climate Control Module (J301) faulty.

Possible Solutions:
Check/Replace Fuse(s).
Check Wiring and/or Connector(s) from/to A/C Compressor Regulating Valve (N280).
Check/Replace A/C Compressor Regulating Valve (N280).
Read Measuring Value Blocks (MVB).
Perform Output Test.
Check/Replace HVAC Climate Control Module (J301).

Special Notes:
The A/C Compressor Regulating Valve (N280) may not be available separately, in this case the entire Refrigerant Compressor needs to be replaced.



Fault Location:
Engine Control Module (ECM) - No Signal/Communication/Implausible Signal

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.

CAN-Data Bus Wiring/Connector(s) from/to Engine Control Module (ECM) faulty.
Fault(s) stored in Engine Control Module (ECM).
Engine Control Module (ECM) recently flashed or re-mapped.

Possible Solutions:
Check CAN-Data Bus Wiring/Connector(s) from/to Engine Control Module (ECM).
Read Measuring Value Blocks (MVB).
Usually Measuring Value Blocks (MVB) 125+ show the current Communication Status.
Check Data Bus Chapter 90-9.
Skoda-Fabia 2000-Electrical.pdf

Special Notes:
When found in a 2005 through 2007 2.5L NAR (North American Region) (1K) Jetta check the T121/62 (Red/Black) traced power wire to the ECM. If power is missing or a voltage drop is present that wire may be damaged anywhere between 6" and 18" from the connector itself. This will result in no communication in addition to a no-start.
Based on 2.5L Jetta feedback over the years a majority look like this example, however some are damaged further away per this example: with the close-up and distant views.
Fault Location:
Treble Speaker: Front Right (R22) - Open Circuit/Short Circuit to Earth

Possible Cause:
Fuse(s).
Wiring/Connector(s).
Check resistance of no output speaker and compare it with a speaker that works.
Speaker resistance can vary between 1, 2, 4 & 8 Ohms.
Treble Speaker: Front Right (R22).

Possible Solutions:
Check/Replace Fuse(s).
Check/Replace all faulty Wiring/Connector(s).
Read Measuring Value Blocks (MVB).
Perform Output Test.
Check/Replace Treble Speaker: Front Right (R22).

Fault Location:
Bass Speaker: Front Right (R23) - Electrical Fault in Circuit/Open Circuit/Short Circuit to Positive

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.

Fuse(s).
Wiring/Connector(s) from/to Bass Speaker Front Right (R23) faulty.
Check resistance of no output speaker and compare it with a speaker that works.
Speaker resistance can vary between 1, 2, 4 & 8 Ohms.
Bass Speaker Front Right (R23) faulty.

Possible Solutions:
Check/Replace Fuse(s).
Check Wiring and/or Connector(s) from/to Bass Speaker Front Right (R23).
Read Measuring Value Blocks (MVB).
Perform Output Test.
Check/Replace Bass Speaker Front Right (R23).
Fault Location:
Supply Voltage Terminal 30 - Signal Outside Specifications/Signal Voltage too Low/Lower Limit Exceeded/Upper Limit Exceeded/Implausible Signal

Possible Cause:
Poor or no function of radio set.

Fuse(s).
Wiring/Connector(s) from/to Control Module faulty.
Power Supply (Battery/Generator) faulty.

Possible Solutions:
Check/Replace Fuse(s).
Check/Replace all faulty Wiring/Connector(s) from/to Control Module.
Read Measuring Value Blocks (MVB).
Battery voltage below 9.5V, battery insufficiently charged.
Check Power Supply (Battery/Generator).

Special Notes:
When found in an individual control module, it's most likely a local source (e.g. Wiring/Connector(s).
When found in multiple control modules at the same time, it's most likely a common source (e.g. earth spot, battery, generator).
Intermittent codes are often stored during low outside temperature when the battery capacity goes down and may be ignored.
Skoda-Fabia 2000-Electrical.pdf


Fault Location:
Locking Module for Central Locking: Rear Right (F223) - Electrical Fault in Circuit/Implausible Signal

Possible Cause:
Door Locks not working properly.

Wiring/Connector(s) from/to Locking Module for Central Locking: Rear Right (F223) faulty.
Voltage Supply for Locking Module for Central Locking: Rear Right (F223) faulty.
Door Lock Mechanics are stiff/partially seized.
Locking Module for Central Locking: Rear Right (F223) faulty

Possible Solutions:
Check/Replace Wiring/Connector(s) from/to Locking Module for Central Locking: Rear Right (F223).
Read Measuring Value Blocks (MVB).
Check voltage supply to rear right door control unit or to door main connector (in B-Pillar right).
Check Door Lock Mechanics/Operation.
Check/Replace Locking Module for Central Locking: Rear Right (F223).



EOBD II Error Code: P2185

Fault Location:
Engine Coolant Temperature Sensor on Radiator Outlet (G83) - Circuit High/Short Circuit to Positive/Signal too High/Lower Limit Exceeded

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.

Wiring/Connector(s) short to positive.
Engine Coolant Temperature Sensor on Radiator Outlet (G83).

Possible Solutions:
Check/Replace all faulty Wiring/Connector(s).
Read Measuring Value Blocks (MVB).

As taken from my new EOBD II Fault Codes Software

 

CHECK MAIN YOUR LOOM CONNECTORs,
Your show signs of a corroded /miss match connection
somewhere in the main loom,
You had any work done on car wiring or
left car open weather to get wet,
or been in a floodwater area that could have let water in
to wiring harness connexions in front of engine compartment car,
that many fault codes over quite a wide range of sensors
suggests corroded pins or very wet main loom connector,
unplug and check all you main loom connectors
and clean with
/W.D. 40/ or electrical contacts cleaner,
can be a simple fix if its not been to long ,
Unplume car battery when doing this,
and you need to check
Main ECU CONNECTOR/S

How long was it standing since LAST STARTED,
?? Could have got badly wet in recent past,
In engine bay you have some major connectors
there and in front area under wings and bumper guards,