[hloktty]

Hi -- yesterday morning I went out start my Touareg, normal morning routine and I received error messages for the following:
TPMS failure
Gear workshop failure
ABS, EPS lights remainded on
Brake Fault - stop vehicle.

There may have been others -- but those were enough to render my car inoperable. I, of course, tried to "reboot" -- turning off the car, removing the key and starting over. No luck. Couldn't even get the car to shift out of park to drive the short distance to the flatbed tow.

Service Manager and a tech came to my house and hooked up a diagnostic tool -- which could not communicate with any of the systems...they were going to try to override the gear shift. They finally had to open the center console and override the gear that way. We drove the car to the dealership - but it did not register any speed or other settings.

Update today is that they still don't know what the issue is definitely - but they have ordered an instrument cluster and will replace that. But that might not be the fix....

Anyone else experienced something like this? I've read other posts that seem to still allow the car to move and/or are limited to specific systems failing -- but this was all of them.

Thanks
------------------------
2004 Offroad Gray V6, Package 3 + OnStar

 

[Manoover]

I assume they'll be testing the battery before replacing the intrument cluster. I had 2 of your 4 error messages a couple weeks ago, with some other electrical weirdness, and they ended up replacing my "defective" main battery. I didn't have much trouble starting up and driving to the dealership, but the V10 has a separate battery for that.

 

[hloktty]

Still Sad ...

This morning I called the dealership again and asked them to please run diagnostics on the battery -- that I was hearing many that many Touareg owners experience electrical issues similar to mine, and the issue is battery related. They checked the battery and reported that all was fine.

The instrument cluster arrived this afternoon and they installed it -- but no luck. Same issues occur. Brake service, EPS, ABS, TPMS, and gear workshop still fail -- and car must stay in neutral with the key in it.

They are contacting the VW techline, but no certainty as to when they will respond. If anyone has any ideas -- please let me know! At least the dealership is being responsive and is open to my suggestions based on what I've been able to research.

Thanks
-----------------------------------
2004 V6/offroad gray/bi-xenon/onstar

 

[jinxegg]

hloktty,
Didn't they find any fault codes during the scan? Rather impossible.
Ask them for the VAS print out, so we can see what the system reads on the various controllers.

 

[hloktty]

Update!

Latest update -- dealer has diagnosed the issue: defective access relay. Basically the car went into lock-down mode -- as it would with an attempt at unauthorized starting. Part is on order and they believe this will fix all issues.

I'll post an update next week.

Thanks!

-----------------------------------
2004 V6/offroad gray/bi-xenon/onstar + more...

 

[hloktty]

Brake Service Failure - among others....

Well, it's been 2000 miles since the first time this happened. And just as I had stopped being somewhat apprehensive every time I started him up -- it happened again....Brake Service Failure, Gear Workshop Fault, etc. This time there's a new icon in the MFI -- a key. That one's not even in the manual.

I called the dealership - within an hour they had dispatched their two top VW techs to come take my car (they have to open the center console and override the lock on the gear shift to put the car in neutral) and leave me with a Touareg loaner. And I was just saying I wanted to test drive an 05....

The tech this time didn't think it was necessarily the access control module (which is what they replaced the last time) but some power cord that they used to have to remove the engine to replace...I remain unconvinced of that since I have never seen any fluctuation in that (always at 14, or 12 as appears appropriate from the many posts I have read).

Anyone else encountered this? Heard of this cord to which the tech refers (runs from passenger side to driver side...)?

Thanks
-----------------------------------
2004 V6/offroad gray/bi-xenon/air suspension/onstar + more...

 

[spockcat]

Re: Brake Service Failure - among others....

Well, it's been 2000 miles since the first time this happened. And just as I had stopped being somewhat apprehensive every time I started him up -- it happened again....Brake Service Failure, Gear Workshop Fault, etc. This time there's a new icon in the MFI -- a key. That one's not even in the manual.

I called the dealership - within an hour they had dispatched their two top VW techs to come take my car (they have to open the center console and override the lock on the gear shift to put the car in neutral) and leave me with a Touareg loaner. And I was just saying I wanted to test drive an 05....

The tech this time didn't think it was necessarily the access control module (which is what they replaced the last time) but some power cord that they used to have to remove the engine to replace...I remain unconvinced of that since I have never seen any fluctuation in that (always at 14, or 12 as appears appropriate from the many posts I have read).

Anyone else encountered this? Heard of this cord to which the tech refers (runs from passenger side to driver side...)?

Thanks
-----------------------------------
2004 V6/offroad gray/bi-xenon/air suspension/onstar + more...

Probably an alternator/battery issue. When these things die electrically, they give off all kinds of fault warnings.

 

[vwfans]

Hi -- yesterday morning I went out start my Touareg, normal morning routine and I received error messages for the following:
TPMS failure
Gear workshop failure
ABS, EPS lights remainded on
Brake Fault - stop vehicle.

There may have been others -- but those were enough to render my car inoperable. I, of course, tried to "reboot" -- turning off the car, removing the key and starting over. No luck. Couldn't even get the car to shift out of park to drive the short distance to the flatbed tow.

Service Manager and a tech came to my house and hooked up a diagnostic tool -- which could not communicate with any of the systems...they were going to try to override the gear shift. They finally had to open the center console and override the gear that way. We drove the car to the dealership - but it did not register any speed or other settings.

Update today is that they still don't know what the issue is definitely - but they have ordered an instrument cluster and will replace that. But that might not be the fix....

Anyone else experienced something like this? I've read other posts that seem to still allow the car to move and/or are limited to specific systems failing -- but this was all of them.

Thanks
------------------------
2004 Offroad Gray V6, Package 3 + OnStar

I had the exact same problems and thought Battery issues and removed and charged, tested and retested battery and all cables, not the problem at all. In the engine compartment on the passenger side, leaves clogged the drain and causes water to build up and flood out the ABS unit. This shorts the ABS out and you get all kinds of errors. I removed the ECU and dug out the entire gunk and cleared the drain path. Then you have disconnect the wire harness that goes to the ABS, mine was corroded and had water still in and around the plug. I blew it out with air and treated the connectors with AMSOIL metal protectant that prevents corrosion and helps shed any water. I tried to remove the electronic ABS module to clean up any water and corrosion but no luck because of the tight fit. I dried everything out and put it all back together and problem fixed.

It’s a tight area to work and if you can remove the plastic cowl then it will be easier, you have to remove the ECU and mounting bracket to get down and it’s a lot of tedious work and arm scrapping to get out all the debris.

modulemaster.com sales ABS modules’, however the Touareg’s take a Ate Mark60 however they do not fix that particular type so your SOL unless you go with a new one and they can find one for about 500-600 from another company. If it’s your actual ABS module then it is still cheaper than the one from the stealership

good luck

 

[Depiry]

Is there a possibility that the key fob is not recognized by the Immobilizer system and therefore not allowing a start or run ????? Marty

 

[TrexV10]

Shift Interlcok

Can anyone write a detailed description of how to access the shift interlock in the console? I had the problem where the computer on the steering column failed and could not get the vehicle out of park.
I want to be able to move the vehicle out of the way or make it easier for a tow truck operator the next time this happens. Photos of the process would help greatly.

 

[Depiry]

vw.tb.94-06-22 Ignition Key Emergency Release Revision.pdf (93.7 KB, 32 views)

vw.tb.96-08-05 No Start after Access Start Module Replacement.pdf (78.8 KB, 19 views)

Marty