A4 1.8t Cabriolet - All The Issues - Problem 1, Wont Start

Wannabe

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Hi Guys,

Firstly, thanks to anyone that takes the time to read and give any insight to the problems im currenlty experiecning, its massively appriciated.

So.......
Im due to do a European Rally in August (If it still goes ahead) and me and my freind both decided a B6 A4 1.8t would be the perfect cheap car to tour Europe. After a few weeks of looking, i find not one but 2 that look tidy (ish) and in budget albeit both with there own issues.

To cut a long story short, i buy one (Herin reffered to as the black one) whislt i have a live bid on ebay for another (The red one), convinced i would be outbid i though nothing of it, until i get a notification telling me i have won, for the princly sum of £75. At that price it was a no brainer to keep it, and have two cars to hopefuly combine into one that actually works.

The black one runs, has Bose, full heated electric red leather and most thing work, but the body is rough and the cluch / DMF is totally dead to the point it wont move at all.

The red one has a fairly good body, not as well specced but just wont start at all.

Me being me, wants to get the Red one running and use the black one for any parts or upgrades as i want, and certinaly helps as a reference to check why the Red on isnt working.

So, i have run the codes and come up with the following, im assuming and please correct me if im wrong that the 17069 fault code is possibly the main reason for not starting, and possibly contributing to many of the others. I have since cleared the codes and 17069 comes back straight away whereas alot of the others dont.

The car cranks but does not fire, i have replaced the ECM relay under the ECU and the fault is still there. I have checked all fuses, and all appear to be fine, i have fuel going to the rail and at pressure so can rule the fuel pump out, but having removed the fuel rail, no fuel is delievered out of the injectors. I believe i have spark but is irrelivent without fuel. I will run the VCDS output test on the injectors tomorrow but im thinking that its the ECU telling them not to pulse.

Anyone got any ideas on where else to check? Is there any other tests i can do on VCDS or with a multimeter? I dont have a bently manual but have tried to search and read through many of the other similar posts on here and check anything i can. I have a feeling its possibly a wiring issue, or the ECU itself but would love to hear any suggestions to either confirm or deny.

I am tempted to try the ECU out of the black car but im not sure if it will work without coding, or, wether i want to risk connecting it if a wiring fault has fried the original ECU.

VCDS log as below. And thanks again!

-------------------------------------------------------------------------------
Address 01: Engine Labels: 06B-906-018-AVJ.lbl
Part No SW: 8E0 909 518 AL HW: 8E0 909 018 A
Component: 1.8L R4/5VT 0003
Coding: 0011504
Shop #: WSC 00672 785 00200
VCID: 7AADF49420C544DB1D6-5160
4 Faults Found:
18062 - Please check DTC Memory of Instrument Cluster
P1654 - 004 - - Intermittent
18010 - Power Supply Terminal 30
P1602 - 002 - Voltage too Low - Intermittent
18043 - Powertrain Data Bus
P1635 - 008 - Missing Message from A/C Controller - Intermittent
17069 - ECM Power Relay Control Circuit
P0685 - 004 - Open Circuit
Readiness: 0000 0000
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8E0-614-517.lbl
Part No: 8E0 614 517
Component: ABS/ESP front 4529
Coding: 04475
Shop #: WSC 00672
VCID: 6597B7E8BC7BDB23C04-51A8
1 Fault Found:
01826 - Sensor for Steering Angle (G85); Supply Voltage Terminal 30
35-00 - -
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8E0-820-043.lbl
Part No: 8E0 820 043 AA
Component: A4 Klimaautomat 1323
Coding: 00100
Shop #: WSC 00672
VCID: 6099A6FCA359BE0B332-513C
10 Faults Found:
01809 - Actuating Motor for Temperature Flap; Left (V158)
41-10 - Blocked or No Voltage - Intermittent
00716 - Air recirculation Flap Positioning Motor (V113)
41-10 - Blocked or No Voltage - Intermittent
01317 - Control Module in Instrument Cluster (J285)
49-10 - No Communications - Intermittent
01330 - Central Control Module for Central Convenience (J393)
49-00 - No Communications
00466 - Control Module for Steering Column Electronics (J527)
49-10 - No Communications - Intermittent
00457 - Central Electronics Control Module / BCM (J519)
49-10 - No Communications - Intermittent
01206 - Signal for Duration of Ignition Off Time
27-00 - Implausible Signal
00830 - Convertible Top Control Module (J256)
49-10 - No Communications - Intermittent
01336 - Company Data Bus for Comfort System
80-10 - Single-Wire Operation - Intermittent
00474 - Control Module for Immobilizer
49-10 - No Communications - Intermittent
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 8H0-959-655-84.lbl
Part No: 8H0 959 655 B
Component: Airbag 8.4EC 2015
Coding: 0011104
Shop #: WSC 00672 785 00200
VCID: 392F2B9865438FC354C-5160
2 Faults Found:
01218 - Side Airbag Igniter; Passenger Side (N200)
001 - Upper Limit Exceeded - Intermittent - MIL ON
00532 - Supply Voltage B+
002 - Lower Limit Exceeded - Intermittent
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 8E0-920-9xx-8E2.lbl
Part No: 8H0 920 950 G
Component: KOMBI+WEGFAHRS. RB4 D22
Coding: 00401
Shop #: WSC 00001
VCID: 303916BCB3394E8BE32-5160
WAUZZZ8H14K025542 AUZ6Z0D0092674
13 Faults Found:
01039 - Coolant Temperature Sensor (G2)
30-10 - Open or Short to Plus - Intermittent
00668 - Supply Voltage Terminal 30
53-10 - Supply Voltage Too Low - Intermittent
01314 - Engine Control Module
49-10 - No Communications - Intermittent
00457 - Central Electronics Control Module / BCM (J519)
49-10 - No Communications - Intermittent
01330 - Central Control Module for Central Convenience (J393)
49-00 - No Communications
01331 - Door Control Module; Driver Side (J386)
49-10 - No Communications - Intermittent
01332 - Door Control Module; Passenger Side (J387)
49-10 - No Communications - Intermittent
01334 - Door Control Module; Rear Right (J389)
49-10 - No Communications - Intermittent
01333 - Door Control Module; Rear Left (J388)
49-10 - No Communications - Intermittent
00830 - Convertible Top Control Module (J256)
49-10 - No Communications - Intermittent
00466 - Control Module for Steering Column Electronics (J527)
49-10 - No Communications - Intermittent
01320 - Control Module for Climatronic (J255)
49-10 - No Communications - Intermittent
01336 - Company Data Bus for Comfort System
80-10 - Single-Wire Operation - Intermittent
-------------------------------------------------------------------------------
Address 45: Inter. Monitor Labels: 8E0-951-177.lbl
Part No: 8H0 951 178
Component: Innenraumueberw. 0411
Coding: 00001
Shop #: WSC 00953
VCID: 6FBBD5C06E871173BA8-50F4
3 Faults Found:
01839 - Transceiver Module 1 for Interior Monitoring (G303)
49-00 - No Communications
01349 - Alarm via Theft Warning System; Front
43-00 - Closed
01838 - Transceiver Module 2 for Interior Monitoring (G305)
27-10 - Implausible Signal - Intermittent
-------------------------------------------------------------------------------
Address 56: Radio Labels: 8E0-035-1xx-56.lbl
Part No: 8E0 035 186 M
Component: concert II GRO 0001
Coding: 13005
Shop #: WSC 00672
VCID: 313F13B8B8034783ECC-4B1E
3 Faults Found:
01317 - Control Module in Instrument Cluster (J285)
49-10 - No Communications - Intermittent
00466 - Control Module for Steering Column Electronics (J527)
49-10 - No Communications - Intermittent
00856 - Radio Antenna
36-00 - Open Circuit
End----------(Elapsed Time: 06:00, VBatt start/end: 12.3V/12.3V)-----------
Tuesday,28,April,2020,19:33:35:41424
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x86
VCDS Version: 20.4.0.1 HEX-V2 CB: 0.4508.4
Data version: 20200331 DS317.0
www.Ross-Tech.com

VIN: WAUZZZ8H14K025542 License Plate: MK04GPZ
Mileage: 139150km-86463mi Repair Order:
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

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

VIN: WAUZZZ8H14K025542 Mileage: 139150km-86463miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 06B-906-018-AVJ.lbl
Part No SW: 8E0 909 518 AL HW: 8E0 909 018 A
Component: 1.8L R4/5VT 0003
Coding: 0011504
Shop #: WSC 00672 785 00200
VCID: 7AADF49420C544DB1D6-5160
4 Faults Found:
18062 - Please check DTC Memory of Instrument Cluster
P1654 - 004 - - Intermittent
18010 - Power Supply Terminal 30
P1602 - 002 - Voltage too Low - Intermittent
18043 - Powertrain Data Bus
P1635 - 008 - Missing Message from A/C Controller - Intermittent
17069 - ECM Power Relay Control Circuit
P0685 - 004 - Open Circuit
Readiness: 0000 0000
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8E0-614-517.lbl
Part No: 8E0 614 517
Component: ABS/ESP front 4529
Coding: 04475
Shop #: WSC 00672
VCID: 6597B7E8BC7BDB23C04-51A8
1 Fault Found:
01826 - Sensor for Steering Angle (G85); Supply Voltage Terminal 30
35-00 - -
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8E0-820-043.lbl
Part No: 8E0 820 043 AA
Component: A4 Klimaautomat 1323
Coding: 00100
Shop #: WSC 00672
VCID: 6099A6FCA359BE0B332-513C
10 Faults Found:
01809 - Actuating Motor for Temperature Flap; Left (V158)
41-10 - Blocked or No Voltage - Intermittent
00716 - Air recirculation Flap Positioning Motor (V113)
41-10 - Blocked or No Voltage - Intermittent
01317 - Control Module in Instrument Cluster (J285)
49-10 - No Communications - Intermittent
01330 - Central Control Module for Central Convenience (J393)
49-00 - No Communications
00466 - Control Module for Steering Column Electronics (J527)
49-10 - No Communications - Intermittent
00457 - Central Electronics Control Module / BCM (J519)
49-10 - No Communications - Intermittent
01206 - Signal for Duration of Ignition Off Time
27-00 - Implausible Signal
00830 - Convertible Top Control Module (J256)
49-10 - No Communications - Intermittent
01336 - Company Data Bus for Comfort System
80-10 - Single-Wire Operation - Intermittent
00474 - Control Module for Immobilizer
49-10 - No Communications - Intermittent
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 8H0-959-655-84.lbl
Part No: 8H0 959 655 B
Component: Airbag 8.4EC 2015
Coding: 0011104
Shop #: WSC 00672 785 00200
VCID: 392F2B9865438FC354C-5160
2 Faults Found:
01218 - Side Airbag Igniter; Passenger Side (N200)
001 - Upper Limit Exceeded - Intermittent - MIL ON
00532 - Supply Voltage B+
002 - Lower Limit Exceeded - Intermittent
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 8E0-920-9xx-8E2.lbl
Part No: 8H0 920 950 G
Component: KOMBI+WEGFAHRS. RB4 D22
Coding: 00401
Shop #: WSC 00001
VCID: 303916BCB3394E8BE32-5160
WAUZZZ8H14K025542 AUZ6Z0D0092674
13 Faults Found:
01039 - Coolant Temperature Sensor (G2)
30-10 - Open or Short to Plus - Intermittent
00668 - Supply Voltage Terminal 30
53-10 - Supply Voltage Too Low - Intermittent
01314 - Engine Control Module
49-10 - No Communications - Intermittent
00457 - Central Electronics Control Module / BCM (J519)
49-10 - No Communications - Intermittent
01330 - Central Control Module for Central Convenience (J393)
49-00 - No Communications
01331 - Door Control Module; Driver Side (J386)
49-10 - No Communications - Intermittent
01332 - Door Control Module; Passenger Side (J387)
49-10 - No Communications - Intermittent
01334 - Door Control Module; Rear Right (J389)
49-10 - No Communications - Intermittent
01333 - Door Control Module; Rear Left (J388)
49-10 - No Communications - Intermittent
00830 - Convertible Top Control Module (J256)
49-10 - No Communications - Intermittent
00466 - Control Module for Steering Column Electronics (J527)
49-10 - No Communications - Intermittent
01320 - Control Module for Climatronic (J255)
49-10 - No Communications - Intermittent
01336 - Company Data Bus for Comfort System
80-10 - Single-Wire Operation - Intermittent
-------------------------------------------------------------------------------
Address 45: Inter. Monitor Labels: 8E0-951-177.lbl
Part No: 8H0 951 178
Component: Innenraumueberw. 0411
Coding: 00001
Shop #: WSC 00953
VCID: 6FBBD5C06E871173BA8-50F4
3 Faults Found:
01839 - Transceiver Module 1 for Interior Monitoring (G303)
49-00 - No Communications
01349 - Alarm via Theft Warning System; Front
43-00 - Closed
01838 - Transceiver Module 2 for Interior Monitoring (G305)
27-10 - Implausible Signal - Intermittent
-------------------------------------------------------------------------------
Address 56: Radio Labels: 8E0-035-1xx-56.lbl
Part No: 8E0 035 186 M
Component: concert II GRO 0001
Coding: 13005
Shop #: WSC 00672
VCID: 313F13B8B8034783ECC-4B1E
3 Faults Found:
01317 - Control Module in Instrument Cluster (J285)
49-10 - No Communications - Intermittent
00466 - Control Module for Steering Column Electronics (J527)
49-10 - No Communications - Intermittent
00856 - Radio Antenna
36-00 - Open Circuit
End----------(Elapsed Time: 05:57, VBatt start/end: 12.2V/12.2V)-----------
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

Address 01: DTCs cleared
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

Address 03: DTCs cleared
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

Address 08: DTCs cleared
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

Address 15: DTCs cleared
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

Address 17: DTCs cleared
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

Address 25: DTCs cleared
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

Address 45: DTCs cleared
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

Address 56: DTCs cleared
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

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

VIN: WAUZZZ8H14K025542 Mileage: 139150km-86463miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 06B-906-018-AVJ.lbl
Part No SW: 8E0 909 518 AL HW: 8E0 909 018 A
Component: 1.8L R4/5VT 0003
Coding: 0011504
Shop #: WSC 00672 785 00200
VCID: 7AADF49420C544DB1D6-5160
1 Fault Found:
17069 - ECM Power Relay Control Circuit
P0685 - 004 - Open Circuit
Readiness: 0110 1101
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8E0-614-517.lbl
Part No: 8E0 614 517
Component: ABS/ESP front 4529
Coding: 04475
Shop #: WSC 00672
VCID: 6597B7E8BC7BDB23C04-51A8
1 Fault Found:
01826 - Sensor for Steering Angle (G85); Supply Voltage Terminal 30
35-00 - -
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8E0-820-043.lbl
Part No: 8E0 820 043 AA
Component: A4 Klimaautomat 1323
Coding: 00100
Shop #: WSC 00672
VCID: 6099A6FCA359BE0B332-513C
No fault code found.
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 8H0-959-655-84.lbl
Part No: 8H0 959 655 B
Component: Airbag 8.4EC 2015
Coding: 0011104
Shop #: WSC 00672 785 00200
VCID: 392F2B9865438FC354C-5160
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 8E0-920-9xx-8E2.lbl
Part No: 8H0 920 950 G
Component: KOMBI+WEGFAHRS. RB4 D22
Coding: 00401
Shop #: WSC 00001
VCID: 303916BCB3394E8BE32-5160
WAUZZZ8H14K025542 AUZ6Z0D0092674
No fault code found.
-------------------------------------------------------------------------------
Address 45: Inter. Monitor Labels: 8E0-951-177.lbl
Part No: 8H0 951 178
Component: Innenraumueberw. 0411
Coding: 00001
Shop #: WSC 00953
VCID: 6FBBD5C06E871173BA8-50F4
No fault code found.
-------------------------------------------------------------------------------
Address 56: Radio Labels: 8E0-035-1xx-56.lbl
Part No: 8E0 035 186 M
Component: concert II GRO 0001
Coding: 13005
Shop #: WSC 00672
VCID: 313F13B8B8034783ECC-4B1E
No fault code found.
End----------(Elapsed Time: 06:06, VBatt start/end: 12.2V/12.2V)-----------
 
No, it doesn’t appear to be. No voltage on the switching terminals for the relay. I’ve bench tested the relay and I know it works and have used a known good one. I’ve also tested power to the ECU tonight and the grounds to the ECU and all seems fine. I tested spark and no spark either.