T6 Fault Codes?

Montecha

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Is there a resource for VAG T6 fault codes?

I have a '03158' but can't find a description on line, can someone point me in the right direction.

Thanks
 
Where are you reading that code from, do you have vcds/vagcom ?
 
Is there a resource for VAG T6 fault codes?

I have a '03158' but can't find a description on line, can someone point me in the right direction.

Thanks

@Montecha , as with @Pauly , can't find the above code,but typed in the one Pauly put up by mistake, but the I do have acquired dyslexia at times, so maybe you have mistyped? :thumbsdown::thumbsup::sleep::sleep:
 
Haha i only just realised i wrote the code wrong :oops:
Know anyone thats got vcds that you could plug into it ?
 
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Just had Engine management light come on for the second month running. Call out guy plugged up and found fault code P31103. His system said "Unknown Fault" which he cleared. Does anyone know what fault code P31103 is.
 
Sorry, can't make sense of it, I suggest you ask dealer for explanation, if they can't, get them to raise it with VW technical/factory.

I've found this so far

DTCs are assigned two codes. The first code is a numerical code assigned by the factory. The second code is referred to as a P-code and follows a structure required by law and defined by the Society of Automotive Engineers (SAE). This standard uses a letter to designate the system and four numbers to further identify and detail the malfunction as listed below.

And:

First digit structure is as follows:

  • Pxxxx for powertrain
  • Bxxxx for body
  • Cxxxx for chassis
  • Uxxxx for future systems
Second digit structure is:

  • P0xxx Government required codes
  • P1xxx Manufacturer codes for additional emission system function; not required but reported to the government
Third digit structure is:

  • Px1xx measurement of air and fuel
  • Px2xx measurement of air and fuel
  • Px3xx ignition system
  • Px4xx additional emission control
  • Px5xx speed and idle regulation
  • Px6xx computer and output signals
  • Px7xx transmission
  • Px8xx transmission
  • Px9xx control modules, input and output signals
The fourth and fifth digits designate the individual components and systems.

VW Diagnostic Trouble Codes (DTCs) and data can be retrieved with VW/Audi Factory Scan Tools such as the VAG 1551, VAG 1552, or the new diagnostic computer VAS 5051 through a Data Link Connector (DLC). For location of the data link connector, see Maintenance section. Several aftermarket scan tools and computer programs are also capable of retrieving this information in this factory mode. The factory mode also allows the scan tool to be used for other system diagnostic functions and information retrieval.

Some DTC information can also be retrieved in a generic mode. The generic mode is not as complete as the factory mode, but allows commercially available scan tools to be used simply to read DTCs. Generic scan tool mode does not have the capability to retrieve the detailed information of a manufacturer-specific scan tool.

Not sure I've helped anyone, but I think as Px1xx = poss air and fuel problem? :eek::thumbsdown::whistle::whistle::sleep::sleep:
 
Sorry, can't make sense of it, I suggest you ask dealer for explanation, if they can't, get them to raise it with VW technical/factory.

I've found this so far

DTCs are assigned two codes. The first code is a numerical code assigned by the factory. The second code is referred to as a P-code and follows a structure required by law and defined by the Society of Automotive Engineers (SAE). This standard uses a letter to designate the system and four numbers to further identify and detail the malfunction as listed below.

And:

First digit structure is as follows:

  • Pxxxx for powertrain
  • Bxxxx for body
  • Cxxxx for chassis
  • Uxxxx for future systems
Second digit structure is:

  • P0xxx Government required codes
  • P1xxx Manufacturer codes for additional emission system function; not required but reported to the government
Third digit structure is:

  • Px1xx measurement of air and fuel
  • Px2xx measurement of air and fuel
  • Px3xx ignition system
  • Px4xx additional emission control
  • Px5xx speed and idle regulation
  • Px6xx computer and output signals
  • Px7xx transmission
  • Px8xx transmission
  • Px9xx control modules, input and output signals
The fourth and fifth digits designate the individual components and systems.

VW Diagnostic Trouble Codes (DTCs) and data can be retrieved with VW/Audi Factory Scan Tools such as the VAG 1551, VAG 1552, or the new diagnostic computer VAS 5051 through a Data Link Connector (DLC). For location of the data link connector, see Maintenance section. Several aftermarket scan tools and computer programs are also capable of retrieving this information in this factory mode. The factory mode also allows the scan tool to be used for other system diagnostic functions and information retrieval.

Some DTC information can also be retrieved in a generic mode. The generic mode is not as complete as the factory mode, but allows commercially available scan tools to be used simply to read DTCs. Generic scan tool mode does not have the capability to retrieve the detailed information of a manufacturer-specific scan tool.

Not sure I've helped anyone, but I think as Px1xx = poss air and fuel problem? :eek::thumbsdown::whistle::whistle::sleep::sleep:

Cheers @T6 Dave Ill be on the phone to the dealers which I have little confidence will know much more as this is now the second month in a row where the Engine Management light has come on. Last month was an oil sensor temp fault code which they said was a false alarm as when they (Dealer|) plugged in everything read good so just cleared the light. Its going to get very frustrating very fast if this continues to happen every month.
 
@Twoguns Not sure if you are still after the Cade info, but found this out..

P31XX Fuel and Air Metering and Auxiliary Emission Controls

P32XX Fuel and Air Metering and Auxiliary Emission Controls
 
@Twoguns Not sure if you are still after the Cade info, but found this out..

P31XX Fuel and Air Metering and Auxiliary Emission Controls

P32XX Fuel and Air Metering and Auxiliary Emission Controls
Cheers @T6 Dave. As i thought, the dealers were less than helpful and said that they had to have plugged it in themselves to have seen the error code to tell me what the fault was. I told them I had the code but they kept saying "We cant tell by that, we need to plug it in". As the AA man had cleared the fault down there was nothing they could do and advised if it happens again to bring it in.
 
Just had Engine management light come on for the second month running. Call out guy plugged up and found fault code P31103. His system said "Unknown Fault" which he cleared. Does anyone know what fault code P31103 is.

In the VCDS coding for plain "31103"
31103 - SCR NOx Catalyst Bank 1
P20EE 00 [039] - Efficiency too Low

Grabbed the above out of the engine (CXFA) with a VCDS. It was also confirmed at the dealer. It didn't turn on the light.
 
@Montecha did you ever get to the bottom of this fault code? Do you know what was wrong / fixed? I have the same on my van, it seems to be something with the NOx sensor. Any guidance would be much appreciated.
 
@Montecha did you ever get to the bottom of this fault code? Do you know what was wrong / fixed? I have the same on my van, it seems to be something with the NOx sensor. Any guidance would be much appreciated.
If you have a 150, there have been a number of reports of sensor failures and subsequent recall/replacement. Call your dealer and get it booked in for warranty repair.
 
@Loz Thanks for this. My engine is the 102 but that is basically the same as the 150. I did call my dealer a month ago to see if there were any recalls but none were listed at the time. I have it booked in after the New Year, as it will be under warranty, but that's pretty disappointing for an 8 month old component with less than 10,000 miles on the clock!

As an aside, I have noticed my adblue and diesel consumption increase over the last couple of months. Pretty sure it will all be related.

I'll update this thread once I have info back from the dealer.
 
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UPDATE - As expected the NOx sensor was at fault with my van. An utter joke at 9k miles and 8 months old regardless of being covered by warranty. I'm starting to think a Euro 6 van was a bad idea, haven't had a single issue with my euro 5 van in 5 years and 55k miles!

The saga isn't over yet. Looks like there is another fault after they changed the NOx sensor so I haven't got the van back yet. The dealer is in communication with the mothership in Germany on this one. Can't say I'm holding out much hope.
 
UPDATE - As expected the NOx sensor was at fault with my van. An utter joke at 9k miles and 8 months old regardless of being covered by warranty. I'm starting to think a Euro 6 van was a bad idea, haven't had a single issue with my euro 5 van in 5 years and 55k miles!

Thanks for the feedback.
The saga isn't over yet. Looks like there is another fault after they changed the NOx sensor so I haven't got the van back yet. The dealer is in communication with the mothership in Germany on this one. Can't say I'm holding out much hope.
Let's hope they are not holding on to it because of Dieselgate II
 
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