EGR fault codes cannot get cleared.

[Cecil_Diesel]

Hello everyone, hope your having a great week. I have a intermittent puzzle I can't crack!
A short little backstory. I replaced my turbo/DPF because of a broken turbo shaft and oil coming out the exhaust. It all went well but it wasn't 2 weeks later a light came on and put the car into limp mode. The fault codes that came back were
• P1440 EGR Valve (N18) Open Circuit
• P0403 EGR Valve (N18) Malfunction intermittent
I need to get a couple things understood. It's possible I had this issue before the turbo went out but I was just assuming it was something I messed up when replacing Turbo/DPF.
The thing I can't find any FOR SURE evidence on is what EGR valve is the N18 Valve! There is 2 EGR systems and I believe the N18 is the on bolted on the intake and NOT the one on the EGR cooler.
1. Am I correct on this?

Thus far I have checked all wiring from the EGR valve in the intake 5 pin connector to the ECM. All circuits had great continuity and passed a load test. I replaced the EGR valve on the intake because when I ran a actuator test in VCDS it sounded horrible and when using a borescope it appeared that the valve was jittery and not opening or closing smoothly. The new valve did the same thing. After clearing codes and driving the car for a couple weeks I thought the issue was fixed but all symptoms came back.

After fiddling with it some more and clearing codes a third time. I got the same codes plus P2463. DPF Excessive soot accumulation. I monitored soot load and actual was 0.0 and calculated was 49.0.
If anyone has some trouble shooting advice or any kind of help I would appreciate it. I'm trying my best to figure this one out. Thank you much!!
I will upload the fault code freeze frame and data.

Monday,10,March,2025,19:07:37:53028
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 11 x64
VCDS Version: 25.3.0.3 (x64) HEX-V2 CB: 0.4660.4
Data version: 20250301 DS365.0
www.Ross-Tech.com


VIN: 3VWLL7AJ6DM390770 License Plate: CHAD
Mileage: 150141 Repair Order: Chad 2013 VW Jetta 2.0 TDI



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


Address 01: Engine Labels: 03L-906-022-CBE.clb
Control Module Part Number: 03L 997 030 M HW: 03L 907 309 AA
Component and/or Version: R4 2.0l TDI G000AG 9983
Software Coding: 0050078
Work Shop Code: WSC 26214 051 00000
VCID: 382926A3FE5F798A770-806C
3 Faults Found:

005184 - EGR Valve (N18)
P1440 - 000 - Open Circuit - MIL ON
Freeze Frame:
Fault Status: 11100000
Fault Priority: 2
Fault Frequency: 22
Reset counter: 255
Mileage: 237261 km
Time Indication: 0
Date: 2063.14.31
Time: 00:46:30

Freeze Frame:
RPM: 0 /min
Speed: 0.0 km/h
Load: 0.0 %
Load: 100.0 %
Lambda: 97.8 %
Mass Air / Rev.: 0.0 mg/str
Temperature: 86.4°C

001027 - EGR Valve (N18)
P0403 - 000 - Malfunction - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 2
Fault Frequency: 143
Reset counter: 255
Mileage: 238387 km
Time Indication: 0
Date: 2063.14.31
Time: 19:42:45

Freeze Frame:
RPM: 2484 /min
Speed: 125.0 km/h
Load: 45.1 %
Load: 98.4 %
Lambda: 100.2 %
Mass Air / Rev.: 435.0 mg/str
Temperature: 87.3°C

009315 - Particle Filter
P2463 - 000 - Excessive Soot Accumulation - MIL ON
Freeze Frame:
Fault Status: 11100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 241593 km
Time Indication: 0
Date: 2063.14.31
Time: 05:56:12

Freeze Frame:
RPM: 1863 /min
Speed: 94.0 km/h
Pressure: 28 mbar
Hex Value: 0xFF01
Temperature: 288.0°C
(no units): 224.4
Mileage: 900 km

 

[SaVAGeSoot]

Let's start with the basics.... Code wrap... post full scan....

 

[Cecil_Diesel]

Ok, I will do that tonight. There will be other fault codes now because I had the key on with things unplugged. Will that be fine?

Also just for my understanding what can we see from a full scan that we cant in the data I posted previously?

What do you mean by Code wrap?

Thanks for your help! Just trying to learn as I go.

 

[SaVAGeSoot]

Also just for my understanding what can we see from a full scan that we cant in the data I posted previously?

More than I'm willing to take the time at this moment to explain.... just do it.

 

[SaVAGeSoot]

DTC	Error Message	Malfunction Criteria and Threshold Value
P0403	Exhaust Gas Recirculation Circuit	Valve stuck open > 17% or stuck closed < 17%
P2463	Diesel Particulate Filter - Soot Accumulation	Calculated particulate matter trap loading > 40 g

 

[PetrolDave]

what can we see from a full scan that we cant in the data I posted previously?

How the vehicle is configured (VAG change things in mid model year) and whether there are sympathy faults that give a clue.

 

[SaVAGeSoot]

It's possible I had this issue before the turbo went out but I was just assuming it was something I messed up when replacing Turbo/DPF.

Yes

Am I correct on this?

Yes

calculated was 49.0.

This is your issue... your DPF is full beyond capacity based on this, and the controller will block any regen attempts.

 

[Cecil_Diesel]

More than I'm willing to take the time at this moment to explain.... just do it.

Ok will do tonight

Yes

Yes


This is your issue... your DPF is full beyond capacity based on this, and the controller will block any regen attempts.

Thank you, Does the controller just think its full or is it actually full based on differential pressures?
How does the fault get cleared even after the fix?

How the vehicle is configured (VAG change things in mid model year) and whether there are sympathy faults that give a clue.

Ok that makes sense, thanks.

 

[SaVAGeSoot]

Does the controller just think its full or is it actually full based on differential pressures?
How does the fault get cleared even after the fix?

It's a calculated value... based on various models... pressures, distance & time since last successful regen, measured air flow, etc.

How does the fault get cleared even after the fix?

If the DPF is replaced, the engine controller is reset in order to be told that it has a new DPF.

 

[Cecil_Diesel]

It's a calculated value... based on various models... pressures, distance & time since last successful regen, measured air flow, etc.

If the DPF is replaced, the engine controller is reset in order to be told that it has a new DPF.

Ok that makes perfect sense, thank you. I thought I reset the carbon mass with VCDS mut I must not have. Once I upload the full scan I will look into the carbon mass and reset it again.

Do you think its possible that the EGR codes are sympathy faults from the DPF issue?

 

[SaVAGeSoot]

Do you think its possible that the EGR codes are sympathy faults from the DPF issue?

NO... they are actual fault as per above.
One points to electrical side, the other to mechanical operation....
You said....

I replaced the EGR valve on the intake because when I ran a actuator test in VCDS it sounded horrible and when using a borescope it appeared that the valve was jittery and not opening or closing smoothly.

Doesn't that sound like you've confirmed what the faults are suggesting?

 

[Cecil_Diesel]

NO... they are actual fault as per above.
One points to electrical side, the other to mechanical operation....
You said...

Gotcha ok.

Doesn't that sound like you've confirmed what the faults are suggesting?

What are the faults suggesting and how do I confirm them?

Electrical side: I check wiring to and from ECM and the 5V reference and didn't find the slightest issue so that's when I changed the EGR valve. Process of elimination is what I was attempting.

Mechanical side: I checked the operation of the original valve and it didn't seem like it was operating smoothly.(I will remove the new valve again and inspect the new valve closer up to see if it seems better.)

I used a Dansk (PN: 03L131501K) off of FCP Euro's website. Do you think I got another faulty valve? Should I get an OEM one?
It is throwing the same faults as the original EGR valve.

 

[SaVAGeSoot]

I'm not sure you're reading what I'm saying.
You've CONFIRMED that what the faults are telling you is TRUE.
You've changed the component, so if that was the issue, the faults wouldn't be there.

The new valve did the same thing.

But... since they are still there, and the new component behaves just like the old one did, this would indicate that the issue is indeed an electrical\connection\signal issue no?
Isn't that valve PWM? Did you confirm it's responding to commands? Did you confirm duty cycle with a meter, or use a PWM generator to actuate the valve? Did you back probe connectors to ensure you have good contacts, etc.? I wasn't there, so you'll have to provide more detail on what you did.

 

[Cecil_Diesel]

I'm not sure you're reading what I'm saying.
You've CONFIRMED that what the faults are telling you is TRUE.
You've changed the component, so if that was the issue, the faults wouldn't be there.

My comprehension is as much as a pebble lol. I'm trying to understand and I got it now.

But... since they are still there, and the new component behaves just like the old one did, this would indicate that the issue is indeed an electrical\connection\signal issue no?

Yes I believe your correct but that is also assuming the way the valve is acting is NOT normal. (I don't really know what's normal) Ill find another car and try see what IS normal.

Isn't that valve PWM? Did you confirm it's responding to commands? Did you confirm duty cycle with a meter, or use a PWM generator to actuate the valve? Did you back probe connectors to ensure you have good contacts, etc.? I wasn't there, so you'll have to provide more detail on what you did.

Yes it is a PWM valve. I have a very limited understanding of PWM diagnostic and how "duty cycle" help diagnose an issue. I don't have a oscilloscope but can check duty cycle and stuff with my multi meter.

I will do some research and figure out how to properly diagnose a PWM circuit and component and respond with my findings.

Thanks for your patience and time.

 

[SaVAGeSoot]

My comprehension is as much as a pebble lol.

That could be an issue.....

Give this a shot

EGR VACUUM REGULATOR SOLENOID VALVE WITH POTENTIOMETER, CHECKING
Observe all safety precautions: SAFETY PRECAUTIONS
View clean working conditions: CLEAN WORKING CONDITIONS
Perform a preliminary check to verify the condition: PRELIMINARY CHECK.
Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.
See Appropriate Wiring Diagram Information for component locations and connector views.

NOTE:    
The EGR Vacuum Regulator Solenoid Valve and High Pressure EGR Valve both refer to the same component N18 or V338. Name changes occur in Appropriate Wiring Diagrams, parts listings etc. The EGR potentiometer G212 is part of the N18 or V338 valve assembly and is serviced as one component.

Special Tools And Workshop Equipment Required

Multimeter
Electrical connector test lead set
Test Conditions

Fuse OK
Battery voltage 12.5 V
Ignition switched off

Start Diagnosis
-- Disconnect the EGR/Potentiometer -N18/V338 - electrical harness connector. Refer to Appropriate Wiring Diagrams for Pin locations.

Checking Internal Resistance
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - terminals 2 to 6 for resistance.
Specified Value: 18.5 ohms (+/- 1.3 Ohms).
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - terminals 1 to 5 for resistance.
Specified Value: 175.6 ohms (+/- 20 Ohms).

If Any Of The Specified Values Are Not Obtained:
-- Replace the EGR/Potentiometer -N18/V338 -.

If The Specifications Were Obtained:
Checking Voltage
-- Switch the ignition On.
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - electrical harness connector terminal 2 to Ground for voltage.
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - electrical harness connector terminal 6 to Ground for voltage.
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - electrical harness connector terminal 3 to Battery Positive (+) for voltage.

Specified Value For Above Tests: Near Battery Voltage.
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - electrical harness connector terminal 1 to Ground for voltage.
-- Switch the ignition Off.
Specified Value: Near 5.01 V

If Any Of The Specified Values Were Not Obtained:
-- Check the EGR/Potentiometer -N18/V338 - electrical harness to the Motronic Engine Control Module (ECM) -J623- for an for an open circuit or a short circuit. Refer to Appropriate Wiring Diagrams for Pin locations.
-- Check the wiring connections for damage, corrosion, loose or broken terminals.
-- If necessary, repair the faulty wiring connection.

If The Specified Value Was Obtained:

Checking wiring
-- Remove the Motronic Engine Control Module (ECM) -J623-.
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - electrical harness connector terminal to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T60 terminal for resistance. Refer to Appropriate Wiring Diagrams for Pin locations.
EGR/Potentiometer -N18/V338 - electrical harness connector terminal    
Motronic Engine Control Module (ECM) -J623- electrical harness connector T60 terminals
1    25
2    4
3    53
5    57
6    19

Specified Value: 1.5 ohms Max.

If The Specification Was Not Obtained:
-- Check the wiring for high resistance, a short circuit to each other, Battery or Ground.
-- If necessary, repair the faulty wiring connection.
-- Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If No Malfunction Is Detected In The Wiring And The Voltage Was Not Ok:
-- Replace the Motronic Engine Control Module (ECM) -J623-.

 

[Cecil_Diesel]

That could be an issue.....

Give this a shot

EGR VACUUM REGULATOR SOLENOID VALVE WITH POTENTIOMETER, CHECKING
Observe all safety precautions: SAFETY PRECAUTIONS
View clean working conditions: CLEAN WORKING CONDITIONS
Perform a preliminary check to verify the condition: PRELIMINARY CHECK.
Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.
See Appropriate Wiring Diagram Information for component locations and connector views.

NOTE:  
The EGR Vacuum Regulator Solenoid Valve and High Pressure EGR Valve both refer to the same component N18 or V338. Name changes occur in Appropriate Wiring Diagrams, parts listings etc. The EGR potentiometer G212 is part of the N18 or V338 valve assembly and is serviced as one component.

Special Tools And Workshop Equipment Required

Multimeter
Electrical connector test lead set
Test Conditions

Fuse OK
Battery voltage 12.5 V
Ignition switched off

Start Diagnosis
-- Disconnect the EGR/Potentiometer -N18/V338 - electrical harness connector. Refer to Appropriate Wiring Diagrams for Pin locations.

Checking Internal Resistance
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - terminals 2 to 6 for resistance.
Specified Value: 18.5 ohms (+/- 1.3 Ohms).
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - terminals 1 to 5 for resistance.
Specified Value: 175.6 ohms (+/- 20 Ohms).

If Any Of The Specified Values Are Not Obtained:
-- Replace the EGR/Potentiometer -N18/V338 -.

If The Specifications Were Obtained:
Checking Voltage
-- Switch the ignition On.
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - electrical harness connector terminal 2 to Ground for voltage.
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - electrical harness connector terminal 6 to Ground for voltage.
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - electrical harness connector terminal 3 to Battery Positive (+) for voltage.

Specified Value For Above Tests: Near Battery Voltage.
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - electrical harness connector terminal 1 to Ground for voltage.
-- Switch the ignition Off.
Specified Value: Near 5.01 V

If Any Of The Specified Values Were Not Obtained:
-- Check the EGR/Potentiometer -N18/V338 - electrical harness to the Motronic Engine Control Module (ECM) -J623- for an for an open circuit or a short circuit. Refer to Appropriate Wiring Diagrams for Pin locations.
-- Check the wiring connections for damage, corrosion, loose or broken terminals.
-- If necessary, repair the faulty wiring connection.

If The Specified Value Was Obtained:

Checking wiring
-- Remove the Motronic Engine Control Module (ECM) -J623-.
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - electrical harness connector terminal to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T60 terminal for resistance. Refer to Appropriate Wiring Diagrams for Pin locations.
EGR/Potentiometer -N18/V338 - electrical harness connector terminal  
Motronic Engine Control Module (ECM) -J623- electrical harness connector T60 terminals
1    25
2    4
3    53
5    57
6    19

Specified Value: 1.5 ohms Max.

If The Specification Was Not Obtained:
-- Check the wiring for high resistance, a short circuit to each other, Battery or Ground.
-- If necessary, repair the faulty wiring connection.
-- Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If No Malfunction Is Detected In The Wiring And The Voltage Was Not Ok:
-- Replace the Motronic Engine Control Module (ECM) -J623-.

LOL.
Awesome that's going to be sooo helpful. Thank you. Ill update the forum with my findings.

 

[Cecil_Diesel]

2013 VW Jetta 2.0 Tdi

Thursday,27,March,2025,18:21:23:53028
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 11 x64
VCDS Version: 25.3.0.3 (x64)  HEX-V2 CB: 0.4660.4
Data version: 20250301 DS365.0
www.Ross-Tech.com


VIN: 3VWLL7AJ6DM390770   License Plate:


Chassis Type: AJ-VW36 (6N0)
Scan: 01 02 03 05 08 09 15 17 19 25 2B 2E 37 44 47 56

VIN: 3VWLL7AJ6DM390770   Mileage: 241630km-150141miles

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: Malfunction 0010
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
2B-Steer. Col. Lock -- Status: OK 0000
2E-Media Player 3 -- Status: OK 0000
37-Navigation -- Status: Malfunction 0010
44-Steering Assist -- Status: OK 0000
47-Sound System -- Status: OK 0000
56-Radio -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (CJA)       Labels: 03L-906-022-CBE.clb
   Part No SW: 03L 997 030 M    HW: 03L 907 309 AA
   Component: R4 2.0l TDI G000AG  9983 
   Revision: 12H15---    Serial number:               
   Coding: 0050078
   Shop #: WSC 26214 051 00000
   VCID: 382926A3FE5F798A770-806C
   VINID: 0E69DC70745A1947432401C70029013AAF

1 Fault Found:
009315 - Particle Filter
               P2463 - 000 - Excessive Soot Accumulation - MIL ON
             Freeze Frame:
                    Fault Status: 11100000
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 241635 km
                    Time Indication: 0
                    Date: 2019.08.18.
                    Time: 00:48:46

             Freeze Frame:
                    RPM: 0 /min
                    Speed: 0.0 km/h
                    Pressure: 0 mbar
                    Hex Value: 0xFF01
                    Temperature: 12.0°C
                    (no units): 0.0
                    Mileage: 940 km

Readiness: 1 1 0 0 0

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 02E-927-770.clb
   Part No SW: 02E 300 062 B    HW: 02E 927 770 AL
   Component: GSG DSG AG6     512 9430 
   Revision: 05551213    Serial number: 00001206291786
   Coding: 0000020
   Shop #: WSC 00066 000 00000
   VCID: 1471B21382777DEA3B8-8040

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 1K0-907-379-60EC1F.clb
   Part No SW: 1K0 907 379 BL    HW: 1K0 907 379 BL
   Component: ESP MK60EC1   H31 0152 
   Revision: 00H31001   
   Coding: B14B400C492B00FA8D1202EB92190042A71000
   Shop #: WSC 00066 000 00000
   VCID: 7DA7F7B79DFD9CA2E46-8028

1 Fault Found:
01325 - Control Module for Tire Pressure Monitoring (J502)
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 129
                    Mileage: 241635 km
                    Time Indication: 0
                    Date: 2019.08.18.
                    Time: 00:00:26

             Freeze Frame:
                    Count: 2
                    Count: 14
                    Count: 20480
                    Count: 16390
                    Count: 43264
                    Count: 0
                    Count: 514
                    Count: 0


-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J518)       Labels:| 5K0-959-434.clb
   Part No SW: 5K0 959 434 B    HW: 5K0 959 434
   Component: VWKESSYPQ35GP 085 0902 
   Revision: 00085000    Serial number: 0184520923 Dataset Number: 5K0116v____ 1609
   Coding: 030C0C
   Shop #: WSC 00066 000 00000
   ASAM Dataset: EV_KESSYPQ35G A02013
   ROD: EV_KESSYPQ35G_A02_VW32.rod
   VCID: 34311293EEB79DEA5B8-8060

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 5C0-820-047.clb
   Part No SW: 5C0 820 047 BA    HW: 5C0 820 047 BA
   Component: J301  Klimaanlage   0204 
   Revision: 2001012S    Serial number: 00000001230011
   Shop #: WSC 00066 000 00000
   VCID: 6099AEC3064F514AEF0-8034

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 6R0-937-08x-09.clb
   Part No SW: 5C0 937 087 E    HW: 5C0 937 087 A
   Component: BCM25 JLB H3  H66 0257 
   Revision: B2066001    Serial number: 04371277120510
   Coding: 7B994B9A08AB0B0008382000240884C50082502E6000000030A000000000
   Shop #: WSC 45472 001 1048576
   VCID: 2F3B1DFF0711BE3226A-807A

   Subsystem 1 - Part No SW: 6R0 959 801 AF    HW: 6R0 959 801 AF  Labels: 6R0-959-801.CLB
   Component: J386__TSG_FT  004 3465
   Serial number: --------------------
   Coding: 820000

   Subsystem 2 - Part No SW: 6R0 959 802 AF    HW: 6R0 959 802 AF  Labels: 6R0-959-802.CLB
   Component: J387__TSG_BT  004 3465
   Serial number: --------------------
   Coding: 820000

   Subsystem 3 - Part No SW: 5K0 959 591     HW: 5K0 959 591
   Component: J245 PS41.022  H10 0007
   Serial number:     WRH0006QBR/     
   Coding: 180000

   Subsystem 4 - Part No SW: 5K0 959 542 A    HW: 5K0 959 542 A
   Component: E221__MFL-TAS  H09 0013
   Serial number: 0514785             
   Coding: 020000

   Subsystem 5 - Part No SW: 6R0 959 811 H    HW: 6R0 959 811 H
   Component: J388__TSG_HL  004 3464
   Serial number: --------------------
   Coding: 800000

   Subsystem 6 - Part No SW: 6R0 959 812 H    HW: 6R0 959 812 H
   Component: J389__TSG_HR  004 3464
   Serial number: --------------------
   Coding: 800000

1 Fault Found:
03589 - Switch for Driver Side Window Regulator
            014 - Defective - Intermittent
             Freeze Frame:
                    Fault Status: 00101110
                    Fault Priority: 2
                    Fault Frequency: 3
                    Reset counter: 137
                    Mileage: 239853 km
                    Time Indication: 0
                    Date: 2019.08.18.
                    Time: 20:22:40


-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 5K0-959-655.clb
   Part No SW: 5C0 959 655 E    HW: 5C0 959 655 E
   Component: AirbagVW10G   014 0808 
   Serial number: 003GTM08FXMJ   Dataset Number: 160003v____ 0154
   Coding: 00003936
   Shop #: WSC 00066 000 00000
   ASAM Dataset: EV_AirbaVW10SMEVW360 A01023
   ROD: EV_AirbaVW10SMEVW360.rod
   VCID: 34311293EEB79DEA5B8-8060

   Seat occupied recognition:
   Subsystem 1 - Part No SW: 5C6 959 339 B    HW: 5C6 959 339 B
   Component: BF-Gewichtss.  H10 0046
   Serial number: 6940000Y120000KNPU0P
   Coding: 303036

   Crash sensor for side airbag: driver side:
   Subsystem 2 - Part No SW: 5K0 959 354     HW: 5K0 959 354
   Component: S.Sens.Fahr.V  H02 ----
   Serial number: 3572MSME2D681070ZZZU

   Crash sensor for side airbag: passenger side:
   Subsystem 3 - Part No SW: 5K0 959 354     HW: 5K0 959 354
   Component: S.Sens.Beif.V  H02 ----
   Serial number: 3582MSME27291070ZZZM

   Rear Side Airbag Crash Sensor (on driver's side):
   Subsystem 4 - Part No SW: 5K0 959 351 A    HW: 5K0 959 351 A
   Component: S.Sens.Fahr.H  H02 ----
   Serial number: 3516KSME2A2A171EZZZ-

   Passenger side rear thorax airbag crash sensor:
   Subsystem 5 - Part No SW: 5K0 959 351 A    HW: 5K0 959 351 A
   Component: S.Sens.Beif.H  H02 ----
   Serial number: 3526KSME4B65531EZZZ$

   Crash sensor for front airbag: driver side:
   Subsystem 6 - Part No SW: 5K0 959 659 A    HW: 5K0 959 659 A
   Component: F.Sens.Fahr  H02 ----
   Serial number: 3556LSME2D51081EZZZ

   Crash sensor for front airbag: passenger side:
   Subsystem 7 - Part No SW: 5K0 959 659 A    HW: 5K0 959 659 A
   Component: F.Sens.Beif  H02 ----
   Serial number: 3566LSME3551081EZZZW

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5K0-920-xxx-17.clb-SRI1
   Part No SW: 5C6 920 952 A    HW: 5C6 920 952 A
   Component: KOMBI         H06 0705 
   Serial number: 00000000000000
   Coding: 270A01
   Shop #: WSC 00066 000 00122
   ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04716
   ROD: EV_Kombi_UDS_VDD_RM09_004_VW32.rod
   VCID: 2A0D0CEB3C73DB1AF14-807E

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 6N0-909-901-6R.clb
   Part No SW: 6N0 909 901     HW: 5C0 937 087 A
   Component: GW-K-CAN TP20 H66 0257 
   Revision: B2066001   
   Coding: 102200
   Shop #: WSC 45472 001 1048576
   VCID: 70B9DE83DAAFE1CA7F0-8024

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
   Part No SW: 5K0 953 234     HW: 5K0 953 234
   Component: IMMO          H06 0705 
   Serial number:               
   Coding: 000007
   Shop #: WSC 00066 000 00122
   ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03709
   ROD: EV_Immo_UDS_VDD_RM09_VW32.rod
   VCID: 6A8DCCEBFCF31B1A314-803E

No fault code found.

-------------------------------------------------------------------------------
Address 2B: Steer. Col. Lock (J764)       Labels:* 5K0-905-861.clb
   Part No SW: 5K0 905 861 B    HW: 5K0 905 861 B
   Component: ELV-PQ35      H20 0240 
   Revision: 00000000    Serial number: 12000182864001
   Coding: 4900000000000000
   Shop #: WSC 00066 790 50316
   ASAM Dataset: EV_ELVMarquMPVW36X A01001
   ROD: EV_ELVMarquMPVW36X_VW32.rod
   VCID: 2F3B1DFF0791BE3226A-807A

No fault code found.

-------------------------------------------------------------------------------
Address 2E: Media Player 3 (J650)       Labels:. 5N0-035-342.lbl
   Part No SW: 5N0 035 342 F    HW: 5N0 035 342 F
   Component: SG EXT.PLAYER H18 0530 
   Revision: A1001003    Serial number: 7663136026   
   Coding: 020100
   Shop #: WSC 00066 000 00000
   VCID: 2A0D0CEB3CF3DB1AF14-807E

No fault code found.

-------------------------------------------------------------------------------
Address 37: Navigation (J794)       Labels:| 1K0-035-27x-37.clb
   Part No SW: 1K0 035 274 D    HW: 1K0 035 274 D
   Component: RNS315-NAR    H55 0319 
   Serial number: VWZAZ2M4282447
   Coding: 04090001010006000000100A
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_RNS315NARV2UDS 001705
   ROD: EV_RNS315NARV2UDS_VW32.rod
   VCID: 2517FFD7556DF462DC6-8070

   Data carrier:
   Subsystem 1 - Part No: 3AA 919 866 B
   Component: NAR_V3_(0037)  0037

1 Fault Found:
1048669 - Tuner for Satellite Radio
          B11CF 53 [00001001] - Deactivated
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 7
                    Fault Frequency: 1
                    Reset counter: 160
                    Mileage: 222285 km
                    Date: 2025.03.27.
                    Time: 10:56:05


-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1K0-909-14x-GEN3.clb
   Part No: 1K0 909 144 P
   Component: EPS_ZFLS Kl. 70     3305 
   Revision: 00H22000   
   Shop #: WSC 02069 000 90108
   VCID: 372B259FF34176F27EA-8062

No fault code found.

-------------------------------------------------------------------------------
Address 47: Sound System (R12)       Labels: 5K0-035-456.clb
   Part No SW: 5C6 035 456     HW: 5C6 035 456
   Component: KonzernAmp10K H07 0468 
   Revision: --------    Serial number: EAA083A0084449 Dataset Number: 560050v____ 1604
   ASAM Dataset: EV_AudioVerst10KanalSTT3 S01001
   ROD: EV_AudioVerst10KanalSTT3_VW32.rod
   VCID: 6597BFD715ED34621C6-8030

No fault code found.

End----------(Elapsed Time: 01:32, VBatt start/end: 12.6V/12.6V)-----------
------------------------------4 Faults Found-------------------------------

 

[Cecil_Diesel]

I finally finished my tests. I found both the old and new EGR valve are out of spec.
EGR Valve spec 18.5Ω (+/- 1.3Ω)
Old Valve 15.7Ω
New Valve 152kΩ and was jumping around when shaking/banging on the valve. (115kΩ-198kΩ)
I ordered a OEM valve so we will cross our fingers and hope for the best.

Give this a shot

EGR VACUUM REGULATOR SOLENOID VALVE WITH POTENTIOMETER, CHECKING
Observe all safety precautions: SAFETY PRECAUTIONS
View clean working conditions: CLEAN WORKING CONDITIONS
Perform a preliminary check to verify the condition: PRELIMINARY CHECK.
Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.
See Appropriate Wiring Diagram Information for component locations and connector views.

NOTE:
The EGR Vacuum Regulator Solenoid Valve and High Pressure EGR Valve both refer to the same component N18 or V338. Name changes occur in Appropriate Wiring Diagrams, parts listings etc. The EGR potentiometer G212 is part of the N18 or V338 valve assembly and is serviced as one component.

Special Tools And Workshop Equipment Required

Multimeter
Electrical connector test lead set
Test Conditions

Fuse OK
Battery voltage 12.5 V
Ignition switched off

Start Diagnosis
-- Disconnect the EGR/Potentiometer -N18/V338 - electrical harness connector. Refer to Appropriate Wiring Diagrams for Pin locations.

Checking Internal Resistance
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - terminals 2 to 6 for resistance.
Specified Value: 18.5 ohms (+/- 1.3 Ohms).
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - terminals 1 to 5 for resistance.
Specified Value: 175.6 ohms (+/- 20 Ohms).

If Any Of The Specified Values Are Not Obtained:
-- Replace the EGR/Potentiometer -N18/V338 -.

If The Specifications Were Obtained:
Checking Voltage
-- Switch the ignition On.
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - electrical harness connector terminal 2 to Ground for voltage.
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - electrical harness connector terminal 6 to Ground for voltage.
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - electrical harness connector terminal 3 to Battery Positive (+) for voltage.

Specified Value For Above Tests: Near Battery Voltage.
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - electrical harness connector terminal 1 to Ground for voltage.
-- Switch the ignition Off.
Specified Value: Near 5.01 V

If Any Of The Specified Values Were Not Obtained:
-- Check the EGR/Potentiometer -N18/V338 - electrical harness to the Motronic Engine Control Module (ECM) -J623- for an for an open circuit or a short circuit. Refer to Appropriate Wiring Diagrams for Pin locations.
-- Check the wiring connections for damage, corrosion, loose or broken terminals.
-- If necessary, repair the faulty wiring connection.

If The Specified Value Was Obtained:

Checking wiring
-- Remove the Motronic Engine Control Module (ECM) -J623-.
-- Using a multimeter, check the EGR/Potentiometer -N18/V338 - electrical harness connector terminal to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T60 terminal for resistance. Refer to Appropriate Wiring Diagrams for Pin locations.
EGR/Potentiometer -N18/V338 - electrical harness connector terminal
Motronic Engine Control Module (ECM) -J623- electrical harness connector T60 terminals
1 25
2 4
3 53
5 57
6 19

Specified Value: 1.5 ohms Max.

If The Specification Was Not Obtained:
-- Check the wiring for high resistance, a short circuit to each other, Battery or Ground.
-- If necessary, repair the faulty wiring connection.
-- Check the electrical harness connector for damage, corrosion, loose or broken terminals.

If No Malfunction Is Detected In The Wiring And The Voltage Was Not Ok:
-- Replace the Motronic Engine Control Module (ECM) -J623-.

I also performed every test in the troubleshooting steps SaVAGeSoot attached above and here were my findings. Everything was in spec.

EGR Valve pin 1 & 5 on both old & new valves. Results: 166Ω

Checking voltage. (Spec: Batt+)
Pin 2 & ⏚ Results: 12.4V
6 & ⏚ Results: 12.4V
3 & Batt + Results: 12.4V

(Spec: 5.01V)
Pin 1 & ⏚ Results: 5.01V
(Load tested every circuit as well)
Checking wiring harness from EGR to ECM.
Pins Results
1 & 25 .3Ω
2 & 4 .2Ω
3 & 53 .3Ω
5 & 57 .3Ω
6 & 19 .2Ω
(Load tested every circuit again)

Checked for high Ω, short circuit to each other, Batt+, or ⏚.

Only fault found was the new valve that was installed was out of spec. The old valve was as well but not near as much.

Any other tips on what to check? I checked duty cycle with the key on but I can't find much online about how to check it and what pins I should really be checking. I'm beginning to understand how it works and why they use it though.
I'm pretty inexperienced when it comes to PWM circuits so ANY help with that would be appreciated!

 

[SaVAGeSoot]

OK.... so the latest scan appears to no longer complain about the EGR....
What is it that you're still trying to do with PWM checking?

 

[Cecil_Diesel]

Like I said the fault code is intermittent and clears out just fine. Until about 2 weeks of driving it will come back on and it has done this 2 times now so I know its not just a fluke. Because of it being intermittent I just wanted to see if anyone had any other things I should check before throwing a new valve on it.

I don't even have a full scan with the EGR faults on there because I cleared them out before I saved the scan. (I know now. Always save your scan!!!) and I cant get the problem to reoccur with out waiting for 2 weeks.

I got the new OEM EGR valve and I tested resistance on pin 2 & 6 and the resistance was better it was still out of that 18.5Ω (+/- 1.3Ω) spec from those trouble shooting steps. It was 16.7Ω.

I also checked the DPF and it is all good. Soot load and differential pressures are fine. I must have forgotten to reset the soot load and oil ash when replacing DPF and turbo.