First Post - Question for NO COMMUNICATION with ECM

y2motoskier · Nov 17, 2014

This is my 1st post and I need help with a 2003 VW GTI 1.8T that we just bought for our son.

It starts and runs for a few seconds and then dies! Here are the results of our scan:

Code:

Address 01: Engine Labels: 06A-906-032-AWP.lbl
Part No: 06A 906 032 LP
Component: 1.8L R4/5VT G 0005
Coding: 07500
Shop #: WSC 00000
VCID: 77FD3B9D551B41995E1-5140
9BWDE61J134002128 VWZ7Z0B5278427
No fault code found.
Readiness: 0110 1100
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 1C0-907-37x-ASR.lbl
Part No: 1C0 907 379 K
Component: ASR FRONT MK60 0103
Coding: 0021505
Shop #: WSC 00000 785 00200
VCID: 326BCA89AEF964B1A9F-5122
1 Fault Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 6Q0-909-605-VW5.lbl
Part No: 1C0 909 605 F
Component: 08 AIRBAG VW61 0202 0001
Coding: 12344
Shop #: WSC 00000
VCID: 275D2BDDC53B11190E1-5104
No fault code found.

Address 17: Instruments Labels: 1J0-920-xx5-17.lbl
Part No: 1J0 920 906 J
Component: KOMBI+WEGFAHRSP VDO V07
Coding: 07232
Shop #: WSC 00000
VCID: 2F6DC3FDEDCB4959C61-5104
9BWDE61J134002128 VWZ7Z0B5278427
2 Faults Found:
01314 - Engine Control Module
49-10 - No Communications - Intermittent
01304 - Radio
49-00 - No Communications
-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels: 6N0-909-901-19.lbl
Part No: 6N0 909 901
Component: Gateway K<->CAN 0001
Coding: 00006
Shop #: WSC 00000
VCID: 70EF0081307516A19FB-5104
2 Faults Found:
01314 - Engine Control Module
49-10 - No Communications - Intermittent
01304 - Radio
49-00 - No Communications
-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 1C0-959-799.lbl
Part No: 1C0 959 799 C
Component: 1J Komfortgerát HLO 0003
Coding: 00064
Shop #: WSC 00000
VCID: 377DFB9D159B81999E1-4B02
Subsystem 1 - Part No: 1C1959801A
Component: 1J Tõrsteuer.FS KLO 0002
Subsystem 2 - Part No: 1C1959802A
Component: 1J Tõrsteuer.BF KLO 0002
No fault code found.

Any ideas where to go next would be highly appreciated!

Thanks.

Tom

NEtech · Nov 17, 2014

Problem with communication, between engine and Immobilizer (in Instrument).
01314 - Engine Control Module
49-10 - No Communications - Intermittent
Use wiring diagram. erwin.volkswagen.com or erwin.vw.com

y2motoskier · Nov 17, 2014

Thanks for your reply NEtech. I couldn't log in to the vw site though. It looks like you have
to be a VW/Audi tech and have an account to log in.

Uwe · Nov 17, 2014

y2motoskier said:
Thanks for your reply NEtech. I couldn't log in to the vw site though. It looks like you have
to be a VW/Audi tech and have an account to log in.

No, those sites are the official repair info and are available to anyone, for a fee, which I believe is $35/day for https://erwin.vw.com/. There are also longer term subscriptions available, but you should be able to download most everything for your car in a day.

However, you do need to register. My erWin -> Registration..

-Uwe-

y2motoskier · Nov 17, 2014

OK, thanks. I'll check it out. I am a bit perplexed because the car will start and run, then just die and won't start again.

It looks like from the printout that there is communication with the ecm under the first section: engine

but not through the instrument cluster or the brakes. I'm just not sure on what do check next?

Thanks.

Tom

Uwe · Nov 17, 2014

The other modules are complaining they can't talk to the ECU. That would be totally expected if the ECU went "off-line" for some reason; and of course the engine would die and refuse to re-start as well. Now, why would an ECU go "off-line"? The first thing that comes to my mind is lack of power. When it dies and won't start again, check voltage supplies to the ECU. You'll need a wiring diagram and a multimeter to do that.

-Uwe-

y2motoskier · Nov 17, 2014

OK, I'll look at the wiring diagrams and see and check voltages. I bought a new battery today and it started right up and ran
for several minutes (idling) and then died all of a sudden. It makes a lot of clicking noises in the throttle body by the front of
the engine and the ECP and check engine lights flash off and on. The car will only start when these 2 lights are on.

We actually had it running for over an hour today and took it for a 5 or 6 mile drive and when we got back it died in the driveway - UGGH!

Very frustrating but the good news is that when it was running it ran GREAT!

Any more help would surely be appreciated - Thanks in advance!

Tom

y2motoskier · Nov 18, 2014

Still won't run today. I have a VW Service Manual from 1999 - 2002, does anyone know if the wiring diagrams for
a 2003 GTI 1.8T would be the same?

Tom

Uwe · Nov 18, 2014

Assuming your service manual covers the 2002 GTI 1.8T, I don't think much changed between 2002 and 2003.

-Uwe-

y2motoskier · Nov 18, 2014

OK, thanks

y2motoskier · Nov 18, 2014

This is the scan we did after it ran for awhile and then stopped again:

7 Faults Found:
16706 - Engine Speed Sensor (G28)
P0322 - 35-10 - No Signal - Intermittent
18011 - Internal Control Module
P1603 - 35-10 - Failed Self-Test - Intermittent
16621 - Manifold Pressure / Boost Sensor (G31)
P0237 - 35-10 - Signal too Low - Intermittent
16497 - Intake Air Temp. Sensor (G42)
P0113 - 35-10 - Signal too High - Intermittent
17951 - Angle Sensor 1 for Throttle Actuator (G187)
P1543 - 35-10 - Signal too Small - Intermittent
17580 - Angle Sensor 2 for Throttle Actuator (G188) Signal too Low
P1172 - 35-10 - - Intermittent
17987 - Throttle Actuator (J338)
P1579 - 35-10 - Adaptation Not Started - Intermittent
Readiness: 0010 1000

ANY IDEAS? Anyone?

y2motoskier · Nov 18, 2014

OK, I've got intermittent EPC and Check Engine lights on like I mentioned before and the Throttle position sensor keeps clicking on and off.

The car will only start when both EPC and Check Engline lights are ON. It dies shortly afterward.

I checked Pin 5 (Light Purple wire with Black stripe) that plugs into the TPS and it oscillates between 3.5 and 12.1 (battery voltage).

Any ideas? Thanks in advance, we really need HELP!

y2motoskier · Nov 18, 2014

My son thinks it's the ECM - does anybody think that may be it?

y2motoskier · Nov 18, 2014

I'm not getting much help here except for the DICTATOR (and I want to thank you for replying so at least I don't feel totally helpless!) so maybe I'll try a different forum - any recommendations?

Thanks in advance.

Tom

Eric · Nov 18, 2014

I think some of us might have ideas, but the fact that your username doesn't show up green isn't the best motivation for other volunteers to help

y2motoskier · Nov 18, 2014

OK, how do I make it green? I've owned the Ross-Tech Software for awhile now (probably a couple of years) and when I registered I gave my serial# for my software so I'm not
sure what else to do?

Tom

Uwe · Nov 18, 2014

When you registered for the forum, you provided a serial number that was purchased from a reseller but never registered with RT for support. You can remedy that deficiency by filling out this form. Use the Notes or Special Instructions field to say something like: "Forum username y2motoskier would like full access" and we'll see what we can do.

-Uwe-

First Post - Question for NO COMMUNICATION with ECM

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