Bypass valve p10a6 P10a4 CODES

[BrokeBichB8]

As title states P10A4 P10A6 codes for bypass valve. I've tried three different bypass valves so I'm pretty certain its not the valves. I used VCDS and it says successful, but I watch the valve and it doesn't swing open/closed at all. Can you off some help on how to debug this code?

If I drive easily I can go about my day with CEL. There's a soft code in the background but no CEL lit. The CEL only gets trigged on wot if I "try" to trigger.

I guess I could check the harness but wouldn't know what to look for since the POT pins are a sweep signal?

Please help thanks

[SwankPeRFection]

What’s the full verbiage of the fault code? Post a pic or copy/paste of what you’re seeing in VCDS for that error code.

Also, when you tool the valves off, were they in an open state and could you freely move them closed and they’d spring back open smoothly or did they feel like they’re hanging up some. When they go bad, they either get stuck closed fully and jammed (mine did this) or they’ll have issues closing/opening smoothly (as the ECU would be expecting) because it’s slipping or skipping teeth on the inner gear of the black half-moon shaped one. You can’t see the damage if you just take the cover off and look quickly because there won’t be an issue with the large outer part of the white plastic gear on there because that engages on a small brass one on the motor and metal to plastic usually won’t have slip wear issues between them. It’s the plastic to plastic on the butterfly that’s the problem and the damage is usually concealed by/under the big white gear.

[BrokeBichB8]

After using VCDS I dont think its my bypass anymore. VCDS fails to connect to so many modules including ecu engine. You think my battery is shot or something? Its only 1 year old.


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


Chassis Type: FL-AU48 (8T0)
Scan: 01 03 05 08 09 10 15 16 17 19 36 3C 3E 42 46 47 52 53 55 56
5F 62 6C 72

VIN: WAUMGBFL5AA105927 Mileage: 165990km-103141miles

01-Engine -- Status: Malfunction 0010
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
10-Park/Steer Assist -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
36-Seat Mem. Drvr -- Status: OK 0000
3C-Lane Change -- Status: OK 0000
3E-Media Player 4 -- Status: Cannot be reached 1100
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: Malfunction 0010
55-Headlight Range -- Status: Malfunction 0010
56-Radio -- Status: Malfunction 0010
5F-Information Electr. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
6C-Back-up Cam. -- Status: Malfunction 0010
72-Door, Rear Right -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CCBA) Labels:. 06E-907-551-CAK.clb
Part No SW: 8K0 907 551 D HW: 8K0 907 551 A
Component: 3.0T SIMOS84 H06 0003
Revision: --H06--- CVN: 3A01E652
Coding: 0104000A180F0128
Shop #: WSC 06325 000 00000
ASAM Dataset: EV_ECM30TFS0218K0907551D 001003
ROD: EV_ECM30TFS0218K0907551D.rod
VCID: 323D168464AF281AE97-8066
VINID: 9D195D5D259C1514410052421CD2EB98FF

3 Faults Found:
9831 - Intake Air Regulating Flap
P10A4 00 [00100000] - Mechanical Malfunction
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 165741 km
Date: 2023.12.10
Time: 10:20:13

Engine RPM: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 13 °C
Intake air temperature: 15 °C
Ambient air pressure: 970 mbar
Voltage terminal 30: 11.679 V
Unlearning counter according OBD: 34
Engine speed: actual: 0 /min
PDT_ENVD: 981.72852 hPa
RFP_SP_ENVD: 76.8898
RFP_AV_ENVD: 0.0000
VP_RFP_1_ENVD: 0.00000 V
RFPPWM_ENVD: 0.00000 %

7804 - Position Sensor for Intake Air Regulating Flap
P10A6 00 [00100100] - Signal too Low
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 3
Mileage: 165741 km
Date: 2023.12.10
Time: 10:20:13

Engine RPM: 3012.00 /min
Normed load value: 78.4 %
Vehicle speed: 87 km/h
Coolant temperature: 95 °C
Intake air temperature: 24 °C
Ambient air pressure: 960 mbar
Voltage terminal 30: 13.609 V
Unlearning counter according OBD: 40
Engine speed: actual: 3040 /min
PDT_ENVD: 971.11523 hPa
V_PVS_1_ENVD: 2.16797 V
RFP_SP_ENVD: 0.0000
VP_RFP_1_ENVD: 0.07813 V
RFPPWM_ENVD: 35.93750 %

7814 - Coolant Pump for Intercooler
P190C 00 [00101101] - No Signal
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 254
Mileage: 165741 km
Date: 2023.12.10
Time: 10:20:05

Engine RPM: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 13 °C
Intake air temperature: 15 °C
Ambient air pressure: 970 mbar
Voltage terminal 30: 11.679 V
Unlearning counter according OBD: 40
Engine speed: actual: 0 /min
MAF_ENVD: 0.00000 mg/stroke
Coolant temperature (unfiltered): 57.8 °C
Engine: operating status: ES
Engine load: 0.000000 %
Vehicle speed: actual: 0 km/h

Readiness: 0000 0000

[LowKeyLoki]

Voltage terminal 30: 11.69V when the engine is off is below spec. Something is up with the battery, charge voltage is at 13.6 which is normal so not a problem with the alternator. I’d toss a new batt in and see if you can connect and see if you still get codes after clearing it. What’s is the brand/specs of your current battery and was it re-coded using a BEM code?

[SwankPeRFection]

Also make sure your battery is an AGM based one. If it’s not, you WILL have issues like this since non-AGMs won’t be as robust. Sometimes used car places or if you’re trying to save money, will put in a standard battery and you end up running into bs like this. Put in a new batt, code it properly and then do a full Clear DTCs and then go for a drive. See where you’re at after that.

[LowKeyLoki]

I wouldn’t worry about getting an AGM battery, while they are robust they are mainly used for cars with start/stop system that are constantly turning on and off.
I’d would just upgrade to a H9 battery with a BEM code sticker. I e looked at several AGM batteries from advanced, autozone etc but couldn’t find one with a BEM code.

[BrokeBichB8]

Its a agm battery from Wal-mart but just about a year old. I figured going cheaper wouldnt be this bad for a battery.

Will try to get a warranty claim going asap and report back. Its just odd that the bypass would be the first module to react to the battery taking a dump.

[SwankPeRFection]

First and last battery I ever bought that failed in a year was from Walmart. The end.


It was a short story. Haha

[BrokeBichB8]

Brand new Duracell AGM battery, properly coded.

Still retains bypass MIL codes.

[BrokeBichB8]

I’ve seen elsewhere that a map sensor could go bad and cause the bypass issue? Would there be any way to use vcds to determine which one??

[SwankPeRFection]

Did you ever get a chance to pull the bypass valve off and look to make sure there’s no gear issues or other mechanical problems with it? It’s super simple to pull off the top back part of the supercharger. It’s like 7 torx screws.

[SwankPeRFection]

Also, you did a full DTC Clear after the battery replacement, correct? If so, are all your other modules now reporting OK on a full scan?

[BrokeBichB8]

Did you ever get a chance to pull the bypass valve off and look to make sure there’s no gear issues or other mechanical problems with it? It’s super simple to pull off the top back part of the supercharger. It’s like 7 torx screws.

Yeah, I actually have 3 bypass valves. I swapped out all three thinking that maybe I just have 2 dirty sucky valves
Old one ( took it off, cleaned, checked, lubed all gears looked 99% ok to me)
Another old one off a used charger i had in the garage. (looked dusty but moved ok by hand)
New autostore website (i forget) valve that was pristine mint

All 3 get the same code. And all 3 do that same thing. Bypass valve adaptation acts weird. 1/10 times it will actually do the adaption. Otherwise it will do nothing when i run the adaptation, and just says successful adaptation. Go figure. FML



Full DTC after battery replacement. Still has issue communicating with modules. Check it out. only showing short Autoscan for brevity


Wednesday,27,December,2023,15:26:05:01176
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 23.11.0.0 (x64) HEX-V2 CB: 0.4643.4
Data version: 20231027 DS351.0
www.Ross-Tech.com


VIN: WAUMGBFL5AA105927 License Plate:
Mileage: 166870km-103688mi Repair Order:



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


Chassis Type: FL-AU48 (8T0)
Scan: 01 03 05 08 09 10 15 16 17 19 36 3C 3E 42 46 47 52 53 55 56
5F 62 6C 72

VIN: WAUMGBFL5AA105927 Mileage: 166870km-103688miles

01-Engine -- Status: Malfunction 1010
03-ABS Brakes -- Status: Malfunction 0010
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: Malfunction 0010
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
10-Park/Steer Assist -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: Malfunction 0010
19-CAN Gateway -- Status: Malfunction 0010
36-Seat Mem. Drvr -- Status: OK 0000
3C-Lane Change -- Status: OK 0000
3E-Media Player 4 -- Status: Cannot be reached 1100
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: Malfunction 0010
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: Malfunction 0010
55-Headlight Range -- Status: Malfunction 0010
56-Radio -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
6C-Back-up Cam. -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CCBA) Labels:. 06E-907-551-CAK.clb
Part No SW: 8K0 907 551 D HW: 8K0 907 551 A
Component: 3.0T SIMOS84 H06 0003
Revision: --H06--- CVN: 3A01E652
Coding: 0104000A180F0128
Shop #: WSC 06325 000 00000
ASAM Dataset: EV_ECM30TFS0218K0907551D 001003
ROD: EV_ECM30TFS0218K0907551D.rod
VCID: 323D168464AF281AE97-8066
VINID: 9D195D5D259C1514410052421CD2EB98FF

2 Faults Found:
7804 - Position Sensor for Intake Air Regulating Flap
P10A6 00 [00100100] - Signal too Low
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 166857 km
Date: 2023.12.26
Time: 12:05:30

Engine RPM: 3817.00 /min
Normed load value: 87.1 %
Vehicle speed: 109 km/h
Coolant temperature: 96 °C
Intake air temperature: 23 °C
Ambient air pressure: 990 mbar
Voltage terminal 30: 12.593 V
Unlearning counter according OBD: 40
Engine speed: actual: 3744 /min
PDT_ENVD: 1002.95508 hPa
V_PVS_1_ENVD: 2.69531 V
RFP_SP_ENVD: 0.0000
VP_RFP_1_ENVD: 0.07813 V
RFPPWM_ENVD: 32.81250 %

7814 - Coolant Pump for Intercooler
P190C 00 [00101111] - No Signal
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 254
Mileage: 166810 km
Date: 2023.12.26
Time: 11:31:13

Engine RPM: 721.00 /min
Normed load value: 9.8 %
Vehicle speed: 0 km/h
Coolant temperature: 29 °C
Intake air temperature: 21 °C
Ambient air pressure: 970 mbar
Voltage terminal 30: 13.507 V
Unlearning counter according OBD: 40
Engine speed: actual: 704 /min
MAF_ENVD: 103.49411 mg/stroke
Coolant temperature (unfiltered): 50.3 °C
Engine: operating status: IS
Engine load: 7.421875 %
Vehicle speed: actual: 0 km/h

Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104) Labels:. 8K0-907-379-V1.clb
Part No SW: 8K0 907 379 CA HW: 8K0 907 379 CA
Component: ESP8 quattro H04 0010
Revision: -------- Serial number: --------------
Coding: 280D18
Shop #: WSC 06325 000 00000
VCID: 7AADFEA4FCDF105A617-802E

2 Faults Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 6
Fault Frequency: 1
Reset counter: 86
Mileage: 166806 km
Time Indication: 0
Date: 2023.12.26
Time: 01:02:08

Freeze Frame:
Hex Value: 0x0000
Hex Value: 0x0006
Hex Value: 0x122B
Hex Value: 0xB99C
Hex Value: 0x00FF

00473 - Control Module for Elect. Park/Hand Brake (J540)
013 - Check DTC Memory - Intermittent
Freeze Frame:
Fault Status: 00101101
Fault Priority: 6
Fault Frequency: 1
Reset counter: 86
Mileage: 166806 km
Time Indication: 0
Date: 2023.12.26
Time: 01:02:08

Freeze Frame:
Hex Value: 0x0000
Hex Value: 0x2206
Hex Value: 0x1232
Hex Value: 0x029A
Hex Value: 0x00FF


-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393) Labels:. 8K0-907-064-05.clb
Part No SW: 8K0 907 064 DG HW: 8K0 907 064 DG
Component: BCM2 1.1 H02 0326
Revision: 00002001
Coding: 0F0100
Shop #: WSC 06325 000 00000
VCID: 78A9E4ACC2D3024A173-802C

Subsystem 1 - Part No SW: 8K0 905 852 D HW: 8K0 905 852 D
Component: J764 ELV MLB H37 0042
Serial number: 0209000098730006

1 Fault Found:
01330 - Central Control Module for Central Convenience (J393)
013 - Check DTC Memory - Intermittent
Freeze Frame:
Fault Status: 00101101
Fault Priority: 6
Fault Frequency: 1
Reset counter: 86
Mileage: 166806 km
Time Indication: 0
Date: 2023.12.26
Time: 01:02:07


-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255) Labels:. 8Tx-820-043-3Z.clb
Part No SW: 8T1 820 043 AQ HW: 8T1 820 043 AQ
Component: KLIMA 3 ZONEN H08 0171
Revision: C1000000 Serial number: 01081220091769
Coding: 66102000
Shop #: WSC 06325 000 00000
VCID: 00598C4C9A034A8A2F3-8054

1 Fault Found:
01314 - Engine Control Module
008 - Implausible Signal - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 6
Fault Frequency: 1
Reset counter: 86
Mileage: 166806 km
Time Indication: 0
Date: 2023.12.26
Time: 01:02:06


-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels:. 8K0-907-063.clb
Part No SW: 8K0 907 063 P HW: 8K0 907 063 P
Component: BCM1 1.0 H25 0380
Revision: 10025001 Serial number: 00000000533828
Coding: 26001091063CAF010000080300003D0D0F1C12080001016100 0000
Shop #: WSC 06325 000 00000
VCID: 3C2138BCB66BEE6A33B-8068

Subsystem 1 - Part No SW: 8K1 955 119 A HW: 8T1 955 119 Labels: 1KX-955-119.CLB
Component: WWS 081209 H06 0070
Serial number: SWF09120085708
Coding: 00FD11

Subsystem 2 - Part No SW: 8K0 955 559 HW: 8K0 955 559 Labels: 8K0-955-559.CLB
Component: RLS H04 0003
Serial number: 10706270
Coding: 025028

Subsystem 3 - Part No SW: 8K0 941 531 AL HW: 8K0 941 531 AL
Component: E1 - LDS H08 0090
Serial number: 00000000003011091353

2 Faults Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 6
Fault Frequency: 1
Reset counter: 86
Mileage: 166806 km
Time Indication: 0
Date: 2023.12.26
Time: 01:02:00

02258 - Door Opener Transmitter
004 - No Signal/Communication
Freeze Frame:
Fault Status: 01100100
Fault Priority: 3
Fault Frequency: 1
Reset counter: 46
Mileage: 166800 km
Time Indication: 0
Date: 2009.06.26
Time: 00:33:00

Address 17: Instruments (J285) Labels:. 8T0-920-xxx-17.clb
Part No SW: 8K0 920 980 Q HW: 8K0 920 980 Q
Component: KOMBIINSTR. H05 0255
Revision: 00100000 Serial number: CJ241LYC9
Coding: 8B1D09000300D705020000
Shop #: WSC 06325 000 00000
VCID: 40D94C4CDA838A8A6F3-8014

1 Fault Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 6
Fault Frequency: 1
Reset counter: 86
Mileage: 166806 km
Time Indication: 0
Date: 2023.12.26
Time: 01:02:08
Address 19: CAN Gateway (J533) Labels:. 8T0-907-468.clb
Part No SW: 8T0 907 468 AA HW: 8T0 907 468 L
Component: GW-BEM 5CAN-M H10 0105
Revision: FB900055 Serial number: 5500F09B2780A4
Coding: 00C303
Shop #: WSC 06325 000 00000
VCID: 00598C4C9A034A8A2F3-8054

Subsystem 1 - Part No SW: 8K0 915 181 E HW: 8K0 915 181 E
Component: J367-BDM H06 0170
Serial number: 1909E63E301109

2 Faults Found:
02079 - Media Player Position 4 (R121)
004 - No Signal/Communication
Freeze Frame:
Fault Status: 01100100
Fault Priority: 2
Fault Frequency: 1
Reset counter: 46
Mileage: 166801 km
Time Indication: 0
Date: 2023.12.26
Time: 00:41:45

Freeze Frame:
Bin. Bits: 01111
Voltage: 12.90 V
Count: 6
Bin. Bits: 10011

01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 2
Fault Frequency: 1
Reset counter: 86
Mileage: 166806 km
Time Indication: 0
Date: 2023.12.26
Time: 01:02:08

Freeze Frame:
Bin. Bits: 10111
Voltage: 12.40 V
Count: 6
Bin. Bits: 10011
Time: 25.40 s



Any help debugging using VCDS would be great. I would go on their forum but I was hoping to address in a vehicle specific forum first......praying someone had this issue b4. But research on VCDS forums has a lot of people with MAP sensor issues causing this? A faulty shorted sensor, scaled for the tune not throwing a code?

[SwankPeRFection]

When did all this start or how did it all start? When was the car fine last without issues. Also, is your heat exchanger water pump PWM signal wire clipped or what?

[BrokeBichB8]

Drove around on 034 e40 tune for 5 weeks straight zero issues. Wanted to flip to 91 with their new bluetooth dongle to allow injectors a cleaning break (theoretical) and then the right away had the code. I have an upgraded CWA-100 and for some reason the pwm does that. Seems to work ok.

but yeah ever since reflash something been awry. Tried to contact 034 but they are just pointing to the bypass valve codes for now, although and trying to convey that it seems to be more than a bypass issue by this point.....

[SwankPeRFection]

OMG. Flash to stock, run a VCDS scan and see where you’re at. If it’s all good, then flash back to the 91 file or whatever you’re supposed to be on. It very well could be an issue with just a bad flash, especially over freaking Bluetooth.

[SwankPeRFection]

Also, if your car is a B8.5 and you’re running a CWA100-3, that’s why PWM doesn’t work. Only the CWA100-2 pumps still allow for PWM flow control on B8.5 cars. A 2010 works with any of the pumps and it’s possible 11-12 is the same, but 13+ definitely have issues controlling the new one.

[BrokeBichB8]

It’s a b8 2010.
Well my deal is that I’m on test pipes and ultra charger tb, so stock requires a lot more effort than just a flash. I mean I thought it might be a bad flash but it does it on my laptop after reflashing same tune. And I coulda swore previous autoscans while tuned didn’t have any connection issue. Will see what I can do

[SwankPeRFection]

Test pipes don’t mean shit. You can flash stock as a test. You won’t be able to start it with the other TB however, so all you’re doing is flashing as a test to see if you clear All DTCs and then full scan if it’ll show all modules as OK. If it does, then reflash the TB capable 91 file or whatever Stage 2+ file you’re on and rescanned. Just don’t start the car after each reflash. All you’re doing is flash to stock, key off, key on, poll the gateway list with VCDS. See if there’s errors. You don’t necessarily have to do a full scan as you should see if there’s errors communicating with just doing a gateway list. Then flash to TB file, key off, key on and do the same VCDS stuff. If all looks clean then you can start it or whatever.

[BrokeBichB8]

"stock" 034 flash. Throws a bunch of module codes even though battery is fresh and voltage looks low. Maybe grounding/B+ connections are awry? where would those be under the hood?


Tuesday,02,January,2024,21:45:44:01176
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 23.11.0.0 (x64) HEX-V2 CB: 0.4643.4
Data version: 20231027 DS351.0
www.Ross-Tech.com


VIN: WAUMGBFL5AA105927 License Plate:
Mileage: 167210km-103899mi Repair Order:



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


Chassis Type: FL-AU48 (8T0)
Scan: 01 03 05 08 09 10 15 16 17 19 36 3C 3E 42 46 47 52 53 55 56
5F 62 6C 72

VIN: WAUMGBFL5AA105927 Mileage: 167210km-103899miles

01-Engine -- Status: Malfunction 0010
03-ABS Brakes -- Status: OK 0000
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
10-Park/Steer Assist -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
36-Seat Mem. Drvr -- Status: OK 0000
3C-Lane Change -- Status: OK 0000
3E-Media Player 4 -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
55-Headlight Range -- Status: OK 0000
56-Radio -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
6C-Back-up Cam. -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CCBA) Labels:. 06E-907-551-CAK.clb
Part No SW: 8K0 907 551 D HW: 8K0 907 551 A
Component: 3.0T SIMOS84 H06 0003
Revision: --H06--- CVN: BC966676
Coding: 0104000A180F0128
Shop #: WSC 06325 000 00000
ASAM Dataset: EV_ECM30TFS0218K0907551D 001003
ROD: EV_ECM30TFS0218K0907551D.rod
VCID: 323D168464AF281AE97-8066
VINID: 9D195D5D259C1514410052421CD2EB98FF

4 Faults Found:
6516 - Throttle Valve Controller
P1545 00 [10100101] - Malfunction
MIL ON - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 2
Mileage: 167210 km
Date: 2024.01.01
Time: 22:28:07

Engine RPM: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 98 °C
Intake air temperature: 47 °C
Ambient air pressure: 970 mbar
Voltage terminal 30: 12.187 V
Unlearning counter according OBD: 40
Engine speed: actual: 0 /min
MAF_ENVD: 0.00000 mg/stroke
Coolant temperature (unfiltered): 98.3 °C
Engine: operating status: ES
Engine load: 0.000000 %
Vehicle speed: actual: 0 km/h

9831 - Intake Air Regulating Flap
P10A4 00 [00100100] - Mechanical Malfunction
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 167210 km
Date: 2024.01.01
Time: 22:28:06

Engine RPM: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 98 °C
Intake air temperature: 47 °C
Ambient air pressure: 970 mbar
Voltage terminal 30: 12.187 V
Unlearning counter according OBD: 40
Engine speed: actual: 0 /min
PDT_ENVD: 981.72852 hPa
RFP_SP_ENVD: 76.8898
RFP_AV_ENVD: 0.0000
VP_RFP_1_ENVD: 0.07813 V
RFPPWM_ENVD: 0.00000 %

7804 - Position Sensor for Intake Air Regulating Flap
P10A6 00 [10100101] - Signal too Low
MIL ON - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 2
Mileage: 167210 km
Date: 2024.01.01
Time: 22:28:06

Engine RPM: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 98 °C
Intake air temperature: 47 °C
Ambient air pressure: 970 mbar
Voltage terminal 30: 12.187 V
Unlearning counter according OBD: 40
Engine speed: actual: 0 /min
PDT_ENVD: 981.72852 hPa
V_PVS_1_ENVD: 0.74219 V
RFP_SP_ENVD: 0.0000
VP_RFP_1_ENVD: 0.07813 V
RFPPWM_ENVD: 0.00000 %

7814 - Coolant Pump for Intercooler
P190C 00 [00100100] - No Signal
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 2
Mileage: 167210 km
Date: 2024.01.01
Time: 22:28:12

Engine RPM: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 98 °C
Intake air temperature: 48 °C
Ambient air pressure: 970 mbar
Voltage terminal 30: 12.187 V
Unlearning counter according OBD: 40
Engine speed: actual: 0 /min
MAF_ENVD: 0.00000 mg/stroke
Coolant temperature (unfiltered): 98.3 °C
Engine: operating status: ES
Engine load: 0.000000 %
Vehicle speed: actual: 0 km/h

Readiness: 1110 1101

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104) Labels:. 8K0-907-379-V1.clb
Part No SW: 8K0 907 379 CA HW: 8K0 907 379 CA
Component: ESP8 quattro H04 0010
Revision: -------- Serial number: --------------
Coding: 280D18
Shop #: WSC 06325 000 00000
VCID: 7AADFEA4FCDF105A617-802E

No fault code found.

-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393) Labels:. 8K0-907-064-05.clb
Part No SW: 8K0 907 064 DG HW: 8K0 907 064 DG
Component: BCM2 1.1 H02 0326
Revision: 00002001
Coding: 0F0100
Shop #: WSC 06325 000 00000
VCID: 78A9E4ACC2D3024A173-802C

Subsystem 1 - Part No SW: 8K0 905 852 D HW: 8K0 905 852 D
Component: J764 ELV MLB H37 0042
Serial number: 0209000098730006

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255) Labels:. 8Tx-820-043-3Z.clb
Part No SW: 8T1 820 043 AQ HW: 8T1 820 043 AQ
Component: KLIMA 3 ZONEN H08 0171
Revision: C1000000 Serial number: 01081220091769
Coding: 66102000
Shop #: WSC 06325 000 00000
VCID: 00598C4C9A034A8A2F3-8054

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels:. 8K0-907-063.clb
Part No SW: 8K0 907 063 P HW: 8K0 907 063 P
Component: BCM1 1.0 H25 0380
Revision: 10025001 Serial number: 00000000533828
Coding: 26001091063CAF010000080300003D0D0F1C12080001016100 0000
Shop #: WSC 06325 000 00000
VCID: 3C2138BCB66BEE6A33B-8068

Subsystem 1 - Part No SW: 8K1 955 119 A HW: 8T1 955 119 Labels: 1KX-955-119.CLB
Component: WWS 081209 H06 0070
Serial number: SWF09120085708
Coding: 00FD11

Subsystem 2 - Part No SW: 8K0 955 559 HW: 8K0 955 559 Labels: 8K0-955-559.CLB
Component: RLS H04 0003
Serial number: 10706270
Coding: 025028

Subsystem 3 - Part No SW: 8K0 941 531 AL HW: 8K0 941 531 AL
Component: E1 - LDS H08 0090
Serial number: 00000000003011091353

1 Fault Found:
02258 - Door Opener Transmitter
004 - No Signal/Communication
Freeze Frame:
Fault Status: 01100100
Fault Priority: 3
Fault Frequency: 1
Reset counter: 56
Mileage: 167210 km
Time Indication: 0
Date: 2024.01.01
Time: 22:28:00


-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446) Labels:. 8K0-919-475.clb
Part No SW: 8K0 919 475 H HW: 8K0 919 475
Component: PARKHILFE 4K H06 0050
Revision: 11001001 Serial number: 39940934305034
Coding: 20000D
Shop #: WSC 06325 000 00000
VCID: 3E2532B4A077FC7A1DF-806A

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234) Labels:| 8K0-959-655.clb
Part No SW: 8K0 959 655 H HW: 8K0 959 655 H
Component: AirbagVW-AU10 H39 0560
Serial number: 003EGD05C80S Dataset Number: 8K0909602H 0005
Coding: 303936354230303030304A55304C384B3053
Shop #: WSC 06325 000 00000
ASAM Dataset: EV_AirbaECUVWAUDI010 003010
ROD: EV_AirbaECUVWAUDI010_003_AU48.rod
VCID: 42DD4644D40F989A797-8016

Seat occupied recognition:
Subsystem 1 - Part No SW: 8K0 959 339 B HW: 8K0 959 339 B
Component: BF-Gewichtss. H01 0030
Serial number: 5810000R09000057ZJ

Crash sensor for side airbag: driver side:
Serial number: 6334MSME4E632710A

Front Passenger's Side Airbag Crash Sensor:
Serial number: 6344MSME4E342F3CV

Rear Side Airbag Crash Sensor (on driver's side):
Serial number: 6352QSME084637229

Passenger side rear thorax airbag crash sensor:
Serial number: 6362QSME06463D16H

Crash sensor for front airbag: driver side:
Serial number: 63732SME42463F280

Crash sensor for front airbag: front passenger side:
Serial number: 63832SME4346230AW

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527) Labels:. 8K0-953-568.clb
Part No SW: 8K0 953 568 F HW: 8K0 953 568 F
Component: Lenks.Modul H16 0014
Revision: -------- Serial number: 90319ILA000K3
Coding: 000016
Shop #: WSC 06325 000 00000
VCID: 3D2735B8AD71E762045-8068

Component: E221 - MFL H02 0003

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285) Labels:. 8T0-920-xxx-17.clb
Part No SW: 8K0 920 980 Q HW: 8K0 920 980 Q
Component: KOMBIINSTR. H05 0255
Revision: 00100000 Serial number: CJ241LYC9
Coding: 8B1D09000300D705020000
Shop #: WSC 06325 000 00000
VCID: 40D94C4CDA838A8A6F3-8014

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels:. 8T0-907-468.clb
Part No SW: 8T0 907 468 AA HW: 8T0 907 468 L
Component: GW-BEM 5CAN-M H10 0105
Revision: FB900055 Serial number: 5500F09B2780A4
Coding: 00C303
Shop #: WSC 06325 000 00000
VCID: 00598C4C9A034A8A2F3-8054

Subsystem 1 - Part No SW: 8K0 915 181 E HW: 8K0 915 181 E
Component: J367-BDM H06 0170
Serial number: 1909E63E301109

No fault code found.

-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr (J136) Labels:. 8T0-959-760.clb
Part No SW: 8K0 959 760 D HW: 8K0 959 760 D
Component: MEM-FS H06 0074
Revision: AA000000 Serial number: 00001010045032
Coding: 00581B00000000000000
Shop #: WSC 06325 000 00000
VCID: 3B233BA0B365E9523A1-806E

No fault code found.

-------------------------------------------------------------------------------
Address 3C: Lane Change Labels: None
Part No SW: 8K0 907 566 H HW: 4L0 907 566 B
Component: J0769_SWA_MasterH01 0030
Revision: 00H01000 Serial number: 6PZ 009 014-82
Coding: 0000001
Shop #: WSC 06325 000 00000
VCID: 3C2138BCBA6BEE6A33B-8068

Subsystem 1 - Part No: 8K0 907 568 H
Component: J0770_SWA_Slave_H01 0030

Subsystem 2 - Serial number: 6PZ 009 014-92

Subsystem 3 - Serial number: 5F05.12.0900H010003C321180ÿ

Subsystem 4 - Serial number: 321180ÿ

No fault code found.

-------------------------------------------------------------------------------
Address 3E: Media Player 4
Cannot be reached

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386) Labels:. 8K0-959-793.clb
Part No SW: 8K0 959 793 H HW: 8K0 959 793 D
Component: TSG FA H11 0306
Revision: Serial number: 0000009740561
Coding: 011C13204E00410001
Shop #: WSC 06325 000 00000
VCID: 45D75D58C5A1AFA25C5-8010

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. (J393) Labels:. 8K0-907-064-46.clb
Part No SW: 8K0 907 064 DG HW: 8K0 907 064 DG
Component: BCM2 1.1 H02 0326
Revision: 00002001 Serial number: 0124212742
Coding: 0106023A007A444500B0013200000000
Shop #: WSC 06325 000 00000
VCID: 78A9E4ACC2D3024A173-802C

Subsystem 1 - Part No SW: 8K0 959 719 HW: 8K0 959 719
Component: GTO BF H06 0050
Serial number: 00000000000000198323

Subsystem 2 - Part No: 1K0 951 605 C
Component: LIN BACKUP HO H05 1501

Subsystem 3 - Part No SW: 8K0 959 591 A HW: 8K0 959 591
Component: J245 PS037 H06 0041

No fault code found.

-------------------------------------------------------------------------------
Address 47: Sound System (J525) Labels:. 8T0-035-223-BOM.clb
Part No SW: 8T0 035 223 AN HW: 8T0 035 223 AK
Component: DSP Prem H10 0190
Revision: 00010001 Serial number: 34882000738801
VCID: 7AADFEA4FCDF105A617-802E

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387) Labels:. 8K0-959-792.clb
Part No SW: 8K0 959 792 H HW: 8K0 959 792 D
Component: TSG BF H11 0306
Revision: Serial number: 0000009769163
Coding: 011C13204E00410001
Shop #: WSC 06325 000 00000
VCID: 44D1405CCE9B96AA4BB-8010

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake (J540) Labels: 8K0-907-801-V1.clb
Part No SW: 8K0 907 801 H HW: 8K0 907 801 H
Component: EPB Audi B8 H09 0100
Revision: 00000003 Serial number: 00000000520634
Shop #: WSC 00000 000 00000
VCID: 3431109C9E3B262AFBB-8060

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range Labels: 8K0-907-357.clb
Part No: 8K5 907 357
Component: Dynamische LWR H01 0010
Revision: 00000001 Serial number:
Coding: 0000004
Shop #: WSC 06324 000 00000
VCID: 77ABE790C3CD0D321E9-8022

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (R) Labels:. 4F0-035-0xx-56.clb
Part No SW: 4F0 035 082 A HW: 4F0 035 082
Component: Radio U SIRIU H45 0021
Revision: AB001007 Serial number: 335L+097543690
Coding: 020000010000000001
Shop #: WSC 06325 000 00000
VCID: 1D67D5380DB18762245-8048

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794) Labels:. 4E0-035-6xx-5F.clb
Part No SW: 8T1 035 664 F HW: 8T1 035 664 B
Component: H-BN-NA H47 0189
Revision: -------- Serial number: 490CR0A7551602
Coding: 010200000206A1EF51000F0E000000030000
Shop #: WSC 34413 001 1048576
VCID: 3B233BA0B365E9523A1-806E

Subsystem 1 - Part No: 8R0 060 884 F
Component: NAR 2009/2010 5304

Subsystem 2 - Part No SW: 4F0 919 604 HW: 4F0 919 604
Component: DU7 High H43 0306
Serial number: 9356LV091151724

Subsystem 3 - Part No SW: 8T0 919 609 G HW: 8T0 919 609 G
Component: E0380 Bedient H08 0100
Serial number: 00000000422851

Subsystem 4 - Part No: 8R0 906 961 A
Component: CD-Database 1293

No fault code found.

-------------------------------------------------------------------------------
Address 62: Door, Rear Left (J388) Labels:. 8K0-959-795.clb
Part No SW: 8K0 959 795 C HW: 8K0 959 795 C
Component: TSG HL H10 0306
Revision: Serial number: 0000102492704
Coding: 010C13204000210001
Shop #: WSC 06325 000 00000
VCID: 42DD4644D48F989A797-8016

No fault code found.

-------------------------------------------------------------------------------
Address 6C: Back-up Cam. Labels: 8T0-907-441.clb
Part No SW: 8T0 907 441 C HW: 4L0 907 441 B
Component: J772__Rearview 0040
Revision: --H03--- Serial number: 525PA8-J9Y91A3
Coding: 1000006
Shop #: WSC 06325 000 00000
VCID: 382924AC8E53C24AD73-806C

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right (J389) Labels:. 8K0-959-795.clb
Part No SW: 8K0 959 795 C HW: 8K0 959 795 C
Component: TSG HR H10 0306
Revision: Serial number: 0000102492726
Coding: 010C13204000210001
Shop #: WSC 06325 000 00000
VCID: 42DD4644D48F989A797-8016

No fault code found.

End----------(Elapsed Time: 01:44, VBatt start/end: 12.3V/12.3V)-----------

[SwankPeRFection]

You still have that code, so it’s either something wonky with that or something isn’t right with the car. Are SURE there were no other changes to the car outside of you just flashing the 91 map as opposed to the e40? You enabled the same options, etc. for both flashes in the app? 034’s flashing app is a bit goofy like that. It’s not just picking the tune, you also pick options for it. Again, we’re trying to limit variables here. Who did your e40 flash and how did they do it? You keep eluding to this “new” Bluetooth dongle. Were all your flashes done this way, e40 included, or was this something new you introduced and then had problems?

[BrokeBichB8]

I am flashing myself through their application. All flashes discussed have now been through my laptop. The initial issue arose after flashing myself from e40 to a 91 tune for good measure. The file selected is supposed to be a stock file. I wouldnt think theyd offer a flash file called "stock" and having mods?? I mean I get your thought process, but this is difficult because i drove 6 weeks of perfection and then a reflash left me having a cel.

The voltages of the modules in question arent an issue though?

[SwankPeRFection]

That I don’t know at the moment. At least the flash cleared up all the other module errors. At this point, I’d suggest flashing the e40 file back on there via the same procedure you did originally when you flashed to that file and then start the car and see what’s up. Part of the flash process should do a full DTC clear at the end of it, so all modules should be clean. When you restart it, while it’s idling, you can hook up VCDS and just do a Gateway Poll and see if any modules show any errors on the initial screen. You can do that with the engine running. You can also dig into the Engine module if you see errors on the gateway list and check for active codes on it. See what you see.

I will say this, the bypass valves are finicky. They’ll look ship shape and they’ll have the gear issues. They also don’t need to be lubed up. That adds resistance to the rolling of the gears and that will sometimes cause minuscule delays the ECU might bitch about. I thought mine was fine until I looked closer at one of the gears and saw some wear on it. It was problematic off/on for a week and then finally failed stuck shut when the damaged gear got bound up on the servo motor one. You could see the damage by just taking the cover off and doing a quick superficial inspection. Swapped out the whole thing with another one and all was good. I know you said you have two of them, but I guess it depends on how reliable and OK you know the second one is. If it’s new, then it’s fine, if it was used from some junk place online, then it could have come off a high mileage engine and have a similar failure. Maybe it’s just bad luck. I would recheck your connections/plugs for both the bypass and the TB before you flash back to e40 as a test. Unplug and replug and click in each one just for good measure.

[BrokeBichB8]

Reflash is out of the question for now. No matter what I reflash I cannot get ride of codes. And they have now expanded even farther. I now get a p2414. Thinkin it might be the 02 sensor. Nada.

I took off my intake to get to the 02 sensors and noticed this. The throttle body adaptation, says successful. But it doesn’t work. The TB adaptation just wiggles the throttle barely and says successful.

Is there a collective ground for this harness? I’ve tried to tighten and loosen the ground in the engine bay and under the washer reservior neck but that wasn’t fruitful. HELP!!

[BrokeBichB8]

Update: so both new bypass and throttle body are not improving anything. I cannot get either valve to adapt. and now suddenly the car runs like its missfiring on all cylinders.

I believe I have a low voltage issue at the ecu. VCDS says less than 12V even when I have a charger hooked up to the engine posts and even when the car is running.

What could cause that? I am looking at troubleshooting docs and it says possibly relays providing power to ecu could be faulty? Or my ecu is just bad? How would you check?

[Smac770]

"VCDS says less than 12V", be more specific. Exactly what are you looking at to assume this? What does a real voltmeter say when you measure across the jump start posts vs across the battery posts vs what is presented in block 018 and (engine running) block 014 of 19-gateway? You'll also probably want to confirm the voltage out from the J271 and J757 relays in the ECM box. If you're looking at a measuring value of the 01-engine, confirm the voltage at the ECM then. There's a number of fuses supplying power to the ECM, but the big ones are the violets on 3/5/6 to the browns on 1/2/4 of the 94-pin.

[BrokeBichB8]

Sorry. Am asking for help in different places so am mixing up info. This weekend tried to charge battery and find possible wire harness breaks, but I couldn’t find anything. When I did vcds scans this weekend, even though my battery charger was hooked directly to the under hood posts, I would get the same faults as above with voltages less than 12v.

I’ll confer those relays, thanks for the guidance

[BrokeBichB8]

So I am at an impass now. Upon checking relays I seem to find the relays in order. I swap them around every which way and the same thing occurs.

But I’m noticing something funky. When I connect the J271 the voltage across the switched contacts of J757 the voltage there drops. Now wouldn’t that mean I have a short to ground somewhere with the ECM? Sorry it’s hard to explain but when I connect j271 and leave the j757 disconnected and put my leads where blade 3 and 5 of the relay would go, I get a change in voltage from 12 to 8. Which I thought shouldn’t occurred since the relays are separate

[Smac770]

The cube relays are:

plate pin # / relay pin # - purpose (standard term designation)
2 / 3 - power in (30)
4 / 1 - control power (86)
6 / 2 - control ground (85)
8 / 5 - power out (87)

J271:
2 - term 30 from battery
4 - term 30 from battery
6 - ground controlled by ECM
8 - 12v output

J757
2 - term 30 from battery
4 - 12v from J271 output
6 - ground controlled by ECM
8 - 12v output

So the J271 gets 12v from the battery and passes that out when the ECM grounds the control path. The control path is always powered.
The J757 gets 12v from the battery and passes that out when the ECM grounds the control path. But the control path is only powered when the J271 relay is activated.

So 2 and 4 should measure B+ (battery voltage, whatever it is) to the negative jump start post, but J757 pin 4 will only be if the J271 is activated. 4 to 6 should measure B+ only when the ECM has grounded the control line, which is only when spinning the engine (cranking or running). And then 8 should measure B+ only whenever 4>6 measures B+ (control has a voltage drop sufficient to actuate the relay).

So not entirely sure I'm following what you're saying regarding your measurements.

The J757 pin 8 output powers three things:
fuse 5 in the ECM box, which powers a number of devices
fuse 9 in the ECM box, which powers the heater circuits of the O2 jump sensors (post-cat)
fuse 10 in the ECM box, which powers the heater circuits of the O2 lambda sensors (pre-cat)

So you can just check the voltage at those three fuses rather than checking directly at the relay plate itself, as well. J757 is the "towards the middle of the car" most cube relay. With the relay and the three fuses pulled, the relay plate pin 8 should measure no voltage / no resistance to either jump start post.

[BrokeBichB8]

Thanks smac770. Am realizing what I posted made no sense. lol. This is very clear thank you. I’ll check the way you’ve listed as soon as I get home.

But if I pulled and swapped each ECU panel fuse one by one AND swapped the relays around multiple times, isn’t that pretty good evidence that my ECU is jacked up? I’ll admit I don’t have a solid grasp of interpreting the wiring schematic, but the throttle body motor(G186) and bypass motor (j809) both have +\- lines that go to the ECU and never ground out elsewhere. And since they are malfunctioning during their adaptation, I figure that’s a pretty big indicator that it’s and ECU issue no?

[BrokeBichB8]

So I pulled j271 motoronic supply relay and the instruction says to check the NO side of the relay for battery voltage. But that makes no sense because the contact side of the relay has power already?

“ use a MM check ECM Power supply relay J271 socket 8 to GND. Should be battery voltage.”

Please help.not sure what else can be shorted?

[Smac770]

Why do you have a 3E media player 4 enabled in a MMI 3G vehicle?

It's expected that there are problems with the J530 HomeLink transceiver, normally mounted on the backside of the radiator grill?

Have you unplugged the harness plugs from the ECM to confirm they are free of corrosion and liquid intrusion?

Something seems odd with the processing. Take the three isolated DTCs you initially posted:

9831 - Intake Air Regulating Flap
P10A4 00 [00100000] - Mechanical Malfunction
Mileage: 165741 km
Date: 2023.12.10
Time: 10:20:13
Engine RPM: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 13 °C
Intake air temperature: 15 °C
Voltage terminal 30: 11.679 V


7804 - Position Sensor for Intake Air Regulating Flap
P10A6 00 [00100100] - Signal too Low
Mileage: 165741 km
Date: 2023.12.10
Time: 10:20:13
Engine RPM: 3012.00 /min
Normed load value: 78.4 %
Vehicle speed: 87 km/h
Coolant temperature: 95 °C
Intake air temperature: 24 °C
Voltage terminal 30: 13.609 V


7814 - Coolant Pump for Intercooler
P190C 00 [00101101] - No Signal
Mileage: 165741 km
Date: 2023.12.10
Time: 10:20:05
Engine RPM: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 13 °C
Intake air temperature: 15 °C
Voltage terminal 30: 11.679 V
Coolant temperature (unfiltered): 57.8 °C

Clearly something doesn't make a lot of sense there. Could be memory chip corruption? Or something unexplained about how freeze frame data is processed by Simos? But engine off battery voltage below 12v is never good.


The V188 coolant pump for the intercooler circuit. Is that known to be not working? Three pins on it, 12v from fuse 7 in the ECM box on pin 1 (yellow/red), ground on pin 3 (brown), control / feedback with the ECM on pin 2 (yellow/blue). Either the pump is unpowered (voltage from pin 1 to pin 3 is not 12v), is broke, or there's an issue with the wire on pin 2 to the ECM. Or possibly the ECM is out to lunch. The control line is a PWM signal; does a scope show the ECM putting out PWM to pin 2 (ECM pin is T94 pin 24)? If you run a resistance measurement from the T94/24 to V188/2 (plugs disconnected from the devices), is it "good"?


The J338 is the throttle valve control unit. This contains the G186 flap motor and the G187 and G188 redundant flap position sensors. The J808 is the bypass valve control unit (think recirc valve in the 2.0T turbo). Of course the problem when people use random words instead of proper component identifiers. So is "regulating flap" the throttle valve or the bypass valve? It appears that P10A4/P10A6 are referencing the J808 "control flap" aka bypass valve.

P10A4 RFP Actuator, functional check
Absolute value of maximum deviation between predicted and real value: > 8%

P10A6 RFP sensor, short to ground / open circuit
Signal voltage < 0.1 V

No idea what Audi is using RFP as an acronym for. J808 had a 5-pin plug:
1 - 5V supply voltage from ECM T60/35; this powers a number of devices, blue/red
2 - something to ECM T94/53, gray/red
3 - ground line from ECM T60/29, shared with the pin 6 on the J338 throttle valve, gray/white
4 - something to ECM T60/48, brown
5 - something to ECM T60/49, blue

I'd guess that 4 and 5 are the power lines for the J808 flap motor, since they are larger than the other 3. Then 1 is power for the J808 electronics, 2 is control/feedback for the J808, and 3 is ground for the J808 electronics. Well, duh, that's laid out in SSP 437 page 27.

You need to google search Audi SSP 437, will be a PDF. The J808 is very well explained on pages 26 and 27. The pin 2 should be a basic voltage level from 0.5V to 4.5V. The error is saying the ECM is seeing effectively no voltage. So is the J808 putting out a variable voltage as you manually manipulate it, or is the output dead. Or is the wire from the J808 to the J623 ECM messed up. Or might it be the ECM, not enough homework has been done to presume that.

[BrokeBichB8]

Regulating Flap is the bypass valve.

Why do you have a 3E media player 4 enabled in a MMI 3G vehicle?
This I dont know, I enabled the green menu for aux cable mmi device. If you know which green menu line i can properly restore it with I can.

It's expected that there are problems with the J530 HomeLink transceiver, normally mounted on the backside of the radiator grill?

Yes its unplugged, I had trouble mounting it to the ebay honeycomb grill so I just disconnected(dont have a garage)

Have you unplugged the harness plugs from the ECM to confirm they are free of corrosion and liquid intrusion?
That is the last step I have yet to attempt. The bastard bolts that hold the ecu plugs on are a bit more work to remove than I expected, and I havent had any rain in a while so kind of didnt even come to mind, but will try.

Clearly something doesn't make a lot of sense there. Could be memory chip corruption? Or something unexplained about how freeze frame data is processed by Simos? But engine off battery voltage below 12v is never good.
I agree, especially because this weekend I left a charger on the underhood posts overnight, and the charger never got the battery above 12V. I thought maybe internal ecu power supply took a shit on me?

V188 coolant pump for the intercooler circuit.
Its an upgraded coolant pump that has its signal disconnected to run full time.


Now onto the J808. I have a completely new valve which fails to complete adaptation as well. I have traced wires to ECU as best as I could without checking connection at ECU (TBD) but there are no major breaks or disconnects. I have reviewed the PDF thoroughly and checked voltages, and for the J808 everything seems to check out. What throws me for a loop is that the throttle body now has similar issue too. That during adaptation the flap driving motor doesnt swing open/closed fully. Im at the point where its got to be ECU driven issue.

he error is saying the ECM is seeing effectively no voltage.
So that makes sense. but please help me understand how. Can a sensor be shorted to ground and grounding out the ECU output? I figure the ECU would recognize that?? I am tracing my source of issue to the to the J271 and the ECU, but after this weekend, a bad relay seems to be out of the question. What I am seeing is something is pulling the ECU voltage down when trying to operate.

Sorry the car is certainly a cluster fuck. But all the changes/modifications were incremental so I was initially able to trace the issue. This one was so random and nonsensical its been difficult to manage.



Thanks for the help Smac770

[Smac770]

"aux cable mmi device", not sure I follow that. US MMI 3G vehicles all have the AMI port in the glove box, which is there and works by default. And the green menu is for configuration of the MMI system (J794); it can't add a device to the installation list of the J533. For an MMI system, 0E/1E/2E/3E external source devices are all on the MOST ring; did you add some additional device to the MOST ring? If not, I'd go into the installation list of the J533 (19-gateway) and uncheck 3E.

The J808 angle sensor is just a rudimentary potentiometer. 5V on one end, ground on the other end, the sensor output contact moves up and down with the movement of the flap, outputting a voltage somewhere between 0.5v and 4.5v. The ECM controls the flap motor directly with the other two wires, and reads the angle back from the angle sensor output line. So first, confirm you measure 5V from pin 1 to pin 3 on the harness plug, ie the angle sensor is getting power and ground. And then check the voltage on pin 2, preferably as you manually move the flap so you can see the voltage output change with angle. If the J808 sensor is getting power, and is producing a valid output, then you need to do the same voltage check at the pin on the ECM plug, to validate the wiring. But that means getting the plugs off the ECM.

[BrokeBichB8]

So get this. Unplugged/rellugged comfort module under the dash. I checked wiring from bypass and throttle, to ecu. All good. Less than 1.5 ohms per manual. Ecu connections had nothing in them, no water, nada. Voltages at bypass and throttle are good. I randomly cleared codes and got a 02 sensor code open for the front passenger. Swapped it out just as last resort.

Tried to do throttle body adaptation with 034 dongle. Says successful, but doesn’t move the throttle blade. Adaptation for bypass fails.

After doing that car won’t start on the first attempt. Second attempt the car starts perfectly. No codes, no issues no cel. Not even partial codes through 034 app. Plan to check with VCDS tonight but am totally bewildered that the car “works” fine now.

[BrokeBichB8]

I don’t get why the car works great now but won’t do adaptation for drive components? I’m going to do more testing tonight to see if it’s just dumb luck. But what could it be? tuning issue ?

[MSq5]

I am following this. I have P10A4 code. Car starts and idles fine. I can drive it if I treat the accelerator pedal as if there is an egg between my foot and the pedal. Any harder push of the pedal and it misfires and goes into limp mode.

A new Audi OEM bypass valve is on order. I'll install and do a VCDS bypass valve adaptation and hope the problem is solved. I'm not getting amy other codes beyond multi cylinder misfires and limp mode cylinder deactivation. Those codes clear and on restart all is fine until the accelerator pedal is pressed much beyond 2000 rpm, then the sequence repeats and P10A4 pops up again. No low battery voltage codes.

Let us know if/when you get this resolved.

[SwankPeRFection]

I am following this. I have P10A4 code. Car starts and idles fine. I can drive it if I treat the accelerator pedal as if there is an egg between my foot and the pedal. Any harder push of the pedal and it misfires and goes into limp mode.

A new Audi OEM bypass valve is on order. I'll install and do a VCDS bypass valve adaptation and hope the problem is solved. I'm not getting amy other codes beyond multi cylinder misfires and limp mode cylinder deactivation. Those codes clear and on restart all is fine until the accelerator pedal is pressed much beyond 2000 rpm, then the sequence repeats and P10A4 pops up again. No low battery voltage codes.

Let us know if/when you get this resolved.

You may want to stop driving the car. If it’s stuck closed, you’re in positive boost no matter what and that’s not good.

[SwankPeRFection]

If you absolutely need to drive it, take the bypass off and make sure it’s open (the spring will keep it in that state). Put it back together but don’t connect the electrical plug onto it. It should run, but won’t make any boost. I wouldn’t suggest either scenario, but this would be better than driving it with it stuck shut due to gear binding.

[BrokeBichB8]

Very unlikely it’s stuck closed. Spring on that bypass is pretty tough you’d have to have a ton of crap in the gears for it to really jam. But that’s really good advice to not blow up forsure.

I mean I’m going to keep debugging and might actually take it to a specialist because I am uneasy about the lack of ability to properly do adaptations. Like i said, so far the car runs stellar, and basic latest a from the manual are all in check.