2012 passat tdi w/ check engine light; VCDS chasis type?

my '12 passat tdi now has 7,000 miles racked up since september. fuel economy has been good at about 42.5 average since new. i'm prety happy with it so far.

however, first problem i've had is an intermittant check engine light. bringing it back tomorrow for the dealer to check out.

would like to scan it first but unsure which chassis type to select in the VCDS autoscan function.

is B7 the correct chassis type for this car?

Afraid I can't answer your B7 question, but guessing selecting "auto detect" (or whatever its labeled) is sufficient.

If that doesn't work, then shoot an email to Ross-Tech.

Yep, use Auto-Detect. In general, you can check VIN digits 7&8 which should be A3 for the NAR B7 NMS Passat.

thanks for the help.

BTW....here's what turned up:
Address 01: Engine (J623-CKRA) Labels: 03L-906-012-CKR.clb
Part No SW: 03L 906 012 BP HW: 03L 907 309 S
Component: R4 2,0L EDC H20 2158
Revision: 71H20--- Serial number:
Coding: 001D0012042400000000
Shop #: WSC 09003 957 00200
ASAM Dataset: EV_ECM20TDI01103L906012BP 004004
ROD: EV_ECM20TDI01103L906012BP.rod
VCID: 73EFBDEEDAAE08C

4 Faults Found:
13052 - Exhaust Temperature too Low after Cold-Start
P050E 00 [096] - -
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 2
Mileage: 10077 km
Date: 2003.14.16
Time: 06:50:59

9658 - Reductant Pressure Sensor Circuit
P204B 00 [040] - Implausible Signal
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 10
Mileage: 8535 km
Date: 2003.14.03
Time: 20:22:04

7926 - Cylinder 2 Glow Plug
P06C6 00 [096] - Incorrect Installation
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 9672 km
Date: 2003.14.13
Time: 09:33:58

17262 - Terminal 30
U140A 00 [032] - Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 9672 km
Date: 2003.14.13
Time: 09:33:58

Readiness: 0 1 0 0 0

ohhh lets see what the dealer finds!

Terminal 30? Reductant Pressure sensor? sounds like fun!

Get the popcorn out!

Forgot to mention that the "addblue" warning showed up the other day replete with words bout "no restart" in 200 miles if it wasn't refilled. Thought that was strange after only 7k miles. And I could still hear it sloshing round in the tank so I know I wasn't close to needing a refill. That warning disappeared at restart.

They're also gonna do some vw service bulletin stuff while it's in.

Driving a gas jetta loaner. Sure like my car better. Will post results of dealer checkout but might have to drive the loaner for a couple of days sez the service advisor. My MIL issue is most repeatable w short trips so they should be able to duplicate them. But they're short staffed this week so he couldn't promise they'd finish today.

Stay tuned.

UPDATE:
so the dealer service advisor called. sez the car needs a replacement "addblue" injector and that all the issues are related to that item. they've expedited the part but still won't have the car ready til next week.

i asked what that part has to do with the one code bout the cyl #2 glow plug. sed he would get back to me bout that. glad i scanned it first.

guess i'll drive the loaner some more. :-(

hopefully they work everything out for you.

replaced N474 reducing agent injector (piss-a-lator)

got my car back yesterday. they replaced the "addblue" injector (which has been nick named the "piss-a-lator" by a wise ass friend of mine). here is a link to a picture of the $275.00 part:

http://pics.tdiclub.com/showphoto.php?photo=82704&title=2012-passat-check-engine-light-stuff&cat=all

and here is an excerpt from the work order/invoice:

A CUSTOMER STATES CHECK ENGINE LIGHT IS ON. CHECK AND ADIVSE.
1501 MISC DIAGNOSIS AND/OR REPAIR
27 WVW
1 3C0-131-113-C VALVE
7071 FOUND DTC P204B00 FOR REDUCTANT PRESSURE SENSOR CIRCUIT/RANGE,
SPORADIC. USED GFF TEST PLANS TO TEST WIRING IN CIRCUIT. CALLED
TECHLINE AND WAS ADVISED TO RUN SYSTEM TEST TO CHECK OUTPUT OF N474
REDUCING AGENT INJECTOR. FOUND INJECTOR WOULD CLICK DURIN OUTPUT TEST
BUT NO FLUID WAS INJECTED. DID SYSTEM TEST OF SCR SYSTEM AND SYSTEM
FAILED, PUMP AND PRESSURE SENSING SEEMED TO BE WORKING. REPLACED
REDUCING AGENT INJECTOR AND RAN SYSTEM TEST AGAIN WITH GFF. SYSTEM TEST
PASSED. ERASED DTC AND TEST DROVE 21 MILES
****************************************************
B PROVIDED PRE-PAID RENTAL
RENTAL PROVIDED PRE-PAID RENTAL!
27 WVW
****************************************************
C AD-BLUE LIGHT CAME WARNING IN 200 MILES CAR WILL SHUT DOWN PLEASE
CHECK
1501 MISC DIAGNOSIS AND/OR REPAIR
27 WVW
1 G-052-910-A2 UREA
7071 FIXED BY REPAIR IN LINE A
****************************************************
D 27D3 2011-11-22 W-UPDATE S t a r t e r Cable (NVLW) 02 Open
1503 RECALL CAMPAIGN
27 WVW
7050 INSPECTED STARTED CABLE CONNECTION AS PER RECALL
****************************************************
E 50A5 2011-10-12 W-UPDATE Quality Assurance Check (NVLW) 03, 04 Open
1503 RECALL CAMPAIGN
27 WVW
7050 COMPLETED QUALITY ASSURANCE CHECKLIST AND TEST DRIVE
****************************************************
F 64C6 2011-10-05 W-UPDATE - Rear Window Guide Seal (NVLW) 01 Open
1503 RECALL CAMPAIGN
27 WVW
7050 TESTED REAR WINDOWS AS PER UPDATE. NO FURTHER WORK REQUIRED

overall pretty happy w/ o'brien auto group, salem, or

i wasn't pleased that i had to drive the loaner for a week or that i had this problem to begin with, however, overall i think i was treated very well.

i would recommend The O'brien Auto Group of Salem, OR and can't say enough good things about my service adviser there--Eric Bert.

the car looks good (they cleaned & fueled it) and runs great. seemed to be getting better milage on the 50 mile trip home but won't know if that's true til i run a couple of tanks thru.


i'm thinking bout buying an extended warranty though. this car is loaded with sensors and controls like the one that failed. hope the rest are more reliable than this N474 valve.

Thanks for the update, lets hope this is not a common issue, .

flyboybob said:

i wasn't pleased that i had to drive the loaner for a week or that i had this problem to begin with, however, overall i think i was treated very well.

i would recommend The O'brien Auto Group of Salem, OR and can't say enough good things about my service adviser there--Eric Bert.

the car looks good (they cleaned & fueled it) and runs great. seemed to be getting better milage on the 50 mile trip home but won't know if that's true til i run a couple of tanks thru.


i'm thinking bout buying an extended warranty though. this car is loaded with sensors and controls like the one that failed. hope the rest are more reliable than this N474 valve.

Click to expand...

Just remember you can buy the extended warranty just before the other one is about to expire, so do not rush out and buy it now from the dealer. Go to vw.com directly.

it's baaack! more piss-a-lator issues.

this is starting to get annoying. my sweetie borrowed the passat today while her honda was being serviced. she called about mid day to announce that the car had popped another CEL. i scanned it tonight and its the reductant pressure signal again. here's the VCDS clip from tonight's scan:


-------------------------------------------------------------------------------
Address 01: Engine (J623-CKRA) Labels: 03L-906-012-CKR.clb
Part No SW: 03L 906 012 BP HW: 03L 907 309 S
Component: R4 2,0L EDC H20 2158
Revision: 71H20--- Serial number:
Coding: 001D0012042400000000
Shop #: WSC 09003 957 00200
ASAM Dataset: EV_ECM20TDI01103L906012BP 004004
ROD: EV_ECM20TDI01103L906012BP.rod
VCID: 73EFBDEEDAAE08C

1 Fault Found:
9658 - Reductant Pressure Sensor Circuit
P204B 00 [040] - Implausible Signal
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 3
Mileage: 12085 km
Date: 2004.14.02
Time: 18:23:02

Readiness: 0 1 0 0 0

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

same code as last time. car still runs great but scheduled an appt. with the dealer for early next week.

anyone here know why the date and time are so screwy?
any way to fix that with VCDS?

stay tuned as the saga continues.

I'd look more into wiring that fees the injector, particularly connectors.

saga continues

so with some snowy weather here last week i didn't get the car back to the dealer 'til last thursday. they confirmed the CEL stored the same code as last time---implausible signal in the reductant pressure sensor circuit. they're relying on VW tech line for instructions to repair. i was told that since this is the second try to resolve this issue, the priority level is different at VW.

today they ordered repair/replacement parts for the addblue pump system. parts should be available tomorrow but it'll probly be wednesday or later before the car is ready for me to pick up.

seems like the hard way to fix things....a sort of shot gun approach without good troubleshooting technique. i still trust that they'll get it fixed but i wouldn't be surprised if this isn't the final attempt.

a day or two more of driving the loaner.

stay tuned.

Just a guess, but I'd expect the tech line to be more diagnostic savvy with their own tech line to engineers.

"piss-a-lator" pump replaced

got my car back today.

surprised they finished earlier than they projected. here is an exerpt from the repair order/invoice:

A CUSTOMER STATES CHECK ENGINE LIGHT HAS BEEN COMING ON AND OFF. CHECK
AND ADIVSE.
1501 MISC DIAGNOSIS AND/OR REPAIR
27 WVW
1 561-198-969 REP.SET
2 3D0-971-838-N TIE WRAP
1 2E0-971-350-M TIE WRAP
2 GUS-052-910-A3 UREA
8247 FOUND DTC P204B00 FOR REDUCTANT PRESSURE SENSOR CIRCUIT
RANGE/PERFORMANCE. CALLED TECHLINE AND WAS ADVISED TO PERFORM WIRING
CHECKS. TESTED WIRING FROM REDUCTANT INJECTOR TO ECM AND FOUND OK.
REMOVED REDUCTANT TANK AND PUMP AND TESTED WIRING FROM PRESSURE SENSOR
TO ECM. FOUND TO BE OK. REMOVED REAR BUMPER COVER AND REPLACED
REDUCTANT PUMP WITH PRESSURE SENSOR, ERASED ALL DTCS. PERFORMED
REDUCTANT SYSTEM TEST THROUGH GFF AND -TEST DROVE 20 ;MlI&S

so they've replaced the "addblue" pump/pressure sensor. the service advisor sez the part alone is priced at $700.00! i'll post a link to pictures of the part next.

car runs and drives great! (as usual.) MFI clocked 50+ mpg average for the trip home.

hope it's fixed this time. there isn't much left in that system that hasn't been replaced or tested.

"piss-a-lator" pictures

here's the links to pictures of the $700.00 "addblue" reductant pump/pressure sensor:


http://pics.tdiclub.com/showphoto.php?photo=83710&title=reductant-pump-w-2fpressure-sensor-1&cat=all

http://pics.tdiclub.com/showphoto.php?photo=83711&title=reductant-pump-w-2fpressure-sensor-2&cat=all

Same Problem

flyboybob said:

Forgot to mention that the "addblue" warning showed up the other day replete with words bout "no restart" in 200 miles if it wasn't refilled. Thought that was strange after only 7k miles. And I could still hear it sloshing round in the tank so I know I wasn't close to needing a refill. That warning disappeared at restart.

They're also gonna do some vw service bulletin stuff while it's in.

Driving a gas jetta loaner. Sure like my car better. Will post results of dealer checkout but might have to drive the loaner for a couple of days sez the service advisor. My MIL issue is most repeatable w short trips so they should be able to duplicate them. But they're short staffed this week so he couldn't promise they'd finish today.

Stay tuned.

Click to expand...

I have the same problem now! @ around 8K miles same symtoms. Dealer just reset the ECU tech said "just some wierd exhaust codes" Now at 12K it's back!!! time to head toward the dealer with this thread in hand. Question did your car smoke during a regen cycle when you were having this problem?

HeliTec said:

I have the same problem now! @ around 8K miles same symtoms. Dealer just reset the ECU tech said "just some wierd exhaust codes" Now at 12K it's back!!! time to head toward the dealer with this thread in hand. Question did your car smoke during a regen cycle when you were having this problem?

Click to expand...

They're leaning towards this as the problem with mine as well. It must be difficult to troubleshoot this system.

@ LuckyBob

I got the software to reset and store the codes because I just don't have the time to bring it to the dealer each time. Interesting thing just happened had the CEL light on for about 500 miles and it just reset by itself. It's been about 2K miles since any adblue warnings or the car smoking during a regen cycle.

HeliTec said:

@ LuckyBob

I got the software to reset and store the codes because I just don't have the time to bring it to the dealer each time. Interesting thing just happened had the CEL light on for about 500 miles and it just reset by itself. It's been about 2K miles since any adblue warnings or the car smoking during a regen cycle.

Click to expand...

Even if the CEL turns off, check faults anyway. They should still be present.

OK I'll check and give you the feedback

Ah, the wonderful world of the CEL! We were about two years into our current car ('04 SAAB 9-5) and the light comes on. Try the fuel tank cap dodge- no go. Car seems to be running fine. Call the dealer service manager. He basically asks "Have you tried the loose gas cap test and does the car seem to be running fine?" Drove it with the light going on & off for about a year, dealer unable to diagnose (no codes). Suddenly my wife had it go into limp mode when trying to drive home from the dentist. Car wouldn't stay running without foot a bit into the gas. I got it driven up to the dealer and it was throwing a couple of codes. They replaced the MAF sensor and the DIC (on SAAB, the direct ignition cassette that fits down over the plugs, containing all the coils). Been fine for 2 more years now......

HeliTec, what did you find for codes?

I had p2200 on mine with 500 miles on it. The dealer replaced the NOx sensor and the light has not come on since. 4000 miles now

Paulsfin said:

I had p2200 on mine with 500 miles on it. The dealer replaced the NOx sensor and the light has not come on since. 4000 miles now

Click to expand...

The equivalent in VCDS would have been:

008704 - NOx Sensor 1 Bank 1
P2200 - 003 - Electrical Malfunction (probably, there are other elaborators)

Niner said:

HeliTec, what did you find for codes?

Click to expand...

Last time it was just the 1 code

17932 Particulate Trap Bank Effiency below Threshold

Haven't had any Ad Blue warnings recently though

Getting close to the 20K mile check and will let them deal with it then

HeliTec said:

Last time it was just the 1 code

17932 Particulate Trap Bank Effiency below Threshold

Haven't had any Ad Blue warnings recently though

Getting close to the 20K mile check and will let them deal with it then

Click to expand...

That doesn't sound like the definition for that fault code number:

http://wiki.ross-tech.com/wiki/index.php/17932/P1524/005412

Did they give you a P-code number as well?