Car won't start any ideas?

[martziniuk]

Mk2 vrs Tfsi

Started fine this morning for the drive to work but I went to it later the only light on the dash was the door open light. All other electrics work fine but it just won't turn over.

I thought maybe the immobilizer so am heading back to work to try another key but I doubt it's this as at least some engine lights would show, also taking vcds.

[Evening Star]

Does it attempt to turn over? If not it maybe a dud battery cell.

[martziniuk]

nope. i got a whole host of fault codes relating to auto hvac etc/. Engine and abs module cannot be reached

[Evening Star]

Frazzled ECU?

It maybe worthwhile taking the battery completely off, leave it for 30' then put it back on, see if it's a glitch in the system (Don't forget your radio code though!)

[martziniuk]

Frazzled ECU?

It maybe worthwhile taking the battery completely off, leave it for 30' then put it back on, see if it's a glitch in the system (Don't forget your radio code though!)

Took battery off, still wo't turn over, also tried other key.

Here is a scan, it doesn't look good for the Ecu :(

00-Steering Angle Sensor -- Status: OK 0000

01-Engine -- Status: OK 0000

03-ABS Brakes -- 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

25-Immobilizer -- Status: OK 0000

42-Door Elect, Driver -- Status: OK 0000

44-Steering Assist -- Status: OK 0000

46-Central Conv. -- Status: Malfunction 0010

52-Door Elect, Pass. -- Status: OK 0000

56-Radio -- Status: OK 0000

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

Address 01: Engine

Cannot be reached

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

Address 03: ABS Brakes

Cannot be reached

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

Address 08: Auto HVAC Labels: 1K0-820-047.lbl

Part No: 1Z0 820 047 D

Component: Climatic PQ35 010 0301

Shop #: WSC 00000 000 00000

3 Faults Found:

00819 - High Pressure Sensor (G65)

009 - Open or Short to Ground

01316 - ABS Control Module

013 - Check DTC Memory

01314 - Engine Control Module

013 - Check DTC Memory

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

Address 09: Cent. Elect. Labels: 3C0-937-049-23-H.lbl

Part No SW: 3C0 937 049 AE HW: 3C0 937 049 AE

Component: Bordnetz-SG H52 2002

Revision: 00H52000 Serial number: 00000004848514

Coding: 018C0F030004140000110D000000000000087F075C0000

Shop #: WSC 24064 210 13409

Part No: 1Z2 955 119 C

Component: Wischer 020407 022 0601

Coding: 00055223

Shop #: WSC 24064

4 Faults Found:

02403 - Terminal 15 for Interior

012 - Electrical Fault in Circuit

Freeze Frame:

Fault Status: 01101100

Fault Priority: 2

Fault Frequency: 1

Reset counter: 239

Mileage: 146341 km

Time Indication: 0

Date: 2005.09.13

Time: 31:63:63

Freeze Frame:

ON

Voltage: 12.10 V

ON

ON

OFF

OFF

OFF

01321 - Control Module for Airbags (J234)

004 - No Signal/Communication

Freeze Frame:

Fault Status: 01100100

Fault Priority: 2

Fault Frequency: 1

Reset counter: 239

Mileage: 146341 km

Time Indication: 0

Date: 2005.09.13

Time: 31:63:63

Freeze Frame:

ON

Voltage: 12.10 V

ON

ON

OFF

OFF

OFF

01314 - Engine Control Module

004 - No Signal/Communication

Freeze Frame:

Fault Status: 01100100

Fault Priority: 2

Fault Frequency: 1

Reset counter: 239

Mileage: 146341 km

Time Indication: 0

Date: 2005.09.13

Time: 31:63:63

Freeze Frame:

ON

Voltage: 12.10 V

ON

ON

OFF

OFF

OFF

01309 - Power Steering Control Module (J500)

004 - No Signal/Communication

Freeze Frame:

Fault Status: 01100100

Fault Priority: 2

Fault Frequency: 1

Reset counter: 239

Mileage: 146341 km

Time Indication: 0

Date: 2005.09.13

Time: 31:63:63

Freeze Frame:

ON

Voltage: 12.10 V

ON

ON

OFF

OFF

OFF

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

Address 15: Airbags

Cannot be reached

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

Address 16: Steering wheel Labels: 1K0-953-549.lbl

Part No SW: 1K0 953 549 BC HW: 1K0 953 549 BC

Component: Lenksäulenmodul 036 0070

Coding: 0000042

Shop #: WSC 73430 790 00000

No fault code found.

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

Address 17: Instruments Labels: 1K0-920-xxx-17.lbl

Part No SW: 1Z0 920 912 C HW: 1Z0 920 912 C

Component: KOMBIINSTRUMENT VD1 1610

Revision: V1610056 Serial number: SKZ7Z0G4140397

Coding: 0003401

Shop #: WSC 25071 576 92323

No fault code found.

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

Address 19: CAN Gateway Labels: 1K0-907-530.lbl

Part No SW: 1K0 907 530 K HW: 1K0 907 951

Component: J533__Gateway H04 0021

Revision: H04 02 Serial number: 070407F1000571

Coding: 3D0F034007001303

Shop #: WSC 73430 790 00000

No fault code found.

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

Address 25: Immobilizer Labels: 1K0-920-xxx-25.lbl

Part No SW: 1Z0 920 912 C HW: 1Z0 920 912 C

Component: IMMO VD1 1610

Revision: V1610056 Serial number: SKZ7Z0G4140397

Shop #: WSC 00000 000 00000

No fault code found.

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

Address 42: Door Elect, Driver Labels: 1K0-959-701-MIN3.lbl

Part No SW: 1T0 959 701 D HW: 1T0 959 701 D

Component: Tuer-SG 005 0954

Coding: 0000628

Shop #: WSC 73430 790 00000

No fault code found.

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

Address 44: Steering Assist

Cannot be reached

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

Address 46: Central Conv. Labels: 1K0-959-433-46.lbl

Part No: 1K0 959 433 CP

Component: KSG 0401

Coding: 80D002007F2D8505485B861004CC

Shop #: WSC 25032 576 88380

Part No: 1Z0 951 171

Component: Innenraumueberw.008 4801

Coding: 00000000

Shop #: WSC 00000

Part No: 1K0 951 605 D

Component: LIN BACKUP HORN H07 9001

Component: NGS n.mounted

1 Fault Found:

01312 - Powertrain Data Bus

013 - Check DTC Memory

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

Address 52: Door Elect, Pass. Labels: 1K0-959-702-MIN3.lbl

Part No SW: 1T0 959 702 D HW: 1T0 959 702 D

Component: Tuer-SG 005 0954

Coding: 0000628

Shop #: WSC 73430 790 00000

No fault code found.

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

Address 56: Radio Labels: 1K0-035-1xx-56.lbl

Part No SW: 1Z0 035 161 C HW: 1Z0 035 161 C

Component: Radio FO3 019 0034

Revision: 00019000 Serial number: SKZ7Z3G0168430

Coding: 0000402

Shop #: WSC 73430 790 00000

No fault code found.

End ---------------------------------------------------------------------

[Evening Star]

I think a chat with the bank manager maybe in order, then a trip to the dealers.

[shark_90]

Gut feeling is that's a fuse or relay. If your ECU, ABS and Airbags are all unreachable then I suspect that something powering them has failed.

[martziniuk]

Gut feeling is that's a fuse or relay. If your ECU, ABS and Airbags are all unreachable then I suspect that something powering them has failed.

Thanks Ben, I was hoping you would answer. I will check out the manuals for the relay and pray it's not the Ecu.

[Hauptmann]

Check out the Terminal 15 power control relay - that's a probable cause of your difficulty.

[uncle bulgaria]

i'd check the battery under load, re-charge and try again 12.1v looks a tad low for a fully charged battery to me. I had similar issues a while back and it turned out to be the battery. It was showing 12.2 volts, but once you put it under load, zilch! Swapped for a known good battery and away we went! Much cheaper to try this first than either a dealer or new ECU.

Just remember if it is the battery you will still have fault warning lights on the dash until you have driven it for a while (can't remember which of them) some one will be able to advise you

[martziniuk]

i'd check the battery under load, re-charge and try again 12.1v looks a tad low for a fully charged battery to me. I had similar issues a while back and it turned out to be the battery. It was showing 12.2 volts, but once you put it under load, zilch! Swapped for a known good battery and away we went! Much cheaper to try this first than either a dealer or new ECU.

Just remember if it is the battery you will still have fault warning lights on the dash until you have driven it for a while (can't remember which of them) some one will be able to advise you

But I only have one light on the dash and that's the door open light. I would have thought a dead battery would still display all the lights.

[martziniuk]

Check out the Terminal 15 power control relay - that's a probable cause of your difficulty.

Thanks I will take a look and possibly order a new one, I read a bit about this through google search. I presume it's in the engine bay but iirc there are about 3 relays any idea which is the correct one?

[Evening Star]

Not necessarily, there maybe enough juice to put the lights on, but not a high enough current to turn the engine & close the requisite relays to get it to turn.

What I'd like to know is why are we still dealing with silly fuses, when they are so out of date? Surely we should be dealing with MCBs by now!

[martziniuk]

Ok will put jump leads on tomorrow and see if any change

MCBs would be very nice :yes:

Edited 3 May, 2010 by vRSMart

[Hauptmann]

Ok will put jump leads on tomorrow and see if any change

MCBs would be very nice :yes:

Really wouldn't advise jump leads.

MCB's are seldom used on cars because fuses cost about 0.01p each. MCB's are much more expensive!

[martziniuk]

Really wouldn't advise jump leads.

MCB's are seldom used on cars because fuses cost about 0.01p each. MCB's are much more expensive!

Thinking about it I have just got back from a three week holiday and the car started up no problems at all surely a dud battery would have flattened by then?

[Hauptmann]

Thanks I will take a look and possibly order a new one, I read a bit about this through google search. I presume it's in the engine bay but iirc there are about 3 relays any idea which is the correct one?

Its the leftmost one on the power control board IIRC. Its relay B1. Check out the feeds to it (switching feed to the coil when ign turned on and permanent feed). You should hear it click when ign on.

[martziniuk]

Its the leftmost one on the power control board IIRC. Its relay B1. Check out the feeds to it (switching feed to the coil when ign turned on and permanent feed). You should hear it click when ign on.

Thankyou will have a good listen :yes:

I just wish my car were outside now to try it :S

[martziniuk]

Checking the Golf Haynes manual I may have hit gold!

The Drive train canbus controls airbag control unit, abs unit, Ecu and steering control unit. Thats pretty much all it controls on my car and all of those have no comms on my fault code list. I now need to find out what controls them.

Edited 3 May, 2010 by vRSMart

[martziniuk]

Update:

Ben and Hauptmann you were correct, It was actually an ignition relay, one of two installed under the dash with the number 460 on top.

Took to local Indy

Price for relay: 8.38 +2h labour + fault scan + vat = £162.69 ouch!

Cheers for the help

Edited 6 May, 2010 by vRSMart

[darrenw]

Thanks for the update.

Result

£162 may seem a lot, but just think how much it could have been if it was the ECU etc...

[martziniuk]

Thanks for the update.

Result

£162 may seem a lot, but just think how much it could have been if it was the ECU etc...

Exactly and also if the garage was rubbish and took days to find the fault at my expense