2016 Audi S4 - Power Steering Failure

   #1  

atbro199

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VCDS Serial number
C?ID=594802
2016 Audi S4, ~40700 miles.

I was driving through heavy rain and I received the "steering failure" in yellow and then red "steering failure. Do not drive!" a few minutes later, or something to that effect. Damn near almost killed me as I wasn't expecting the wheel to become so stiff in dumping rain on a two-lane road. The electric assist steering certainly isn't like the old manual steering cars with hydraulic systems. I was able to drive it home and then looked under the car the next day. I found that the baffling/boot was no longer connected on the drivers side, so I assume water intrusion killed it.

The car isn't eligible for the extended warranty because it has a branded title (Rebuilt). The accident that damaged the car didn't affect any of the mechanical components, but Audi corporate doesn't seem to care and already dismissed the extended part warranty on the steering box.

Question is: what exactly is broken and what do I need to replace? I understand the rack needs to be replaced, but what about the control module? Is there a way I can "reset" it and see if it still comes up dead? It had several days to dry out. The parking brake works - I don't understand that code.

Code:
Sunday,27,April,2025,17:14:47:42314
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 24.7.0.0 (x64)
Data version: 20240715 DS356.3
www.Ross-Tech.com


VIN: WAUDGAFL1GA001177   License Plate:
Mileage: 65520km-40712mi   Repair Order:



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


Chassis Type: FL-AU48 (8R0)
Scan: 01 03 05 08 09 15 16 17 19 22 36 3C 42 44 46 47 52 53 56 5F
          62 6C 72 A9

VIN: WAUDGAFL1GA001177   Mileage: 65520km-40712miles

01-Engine -- 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: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
22-AWD -- Status: OK 0000
36-Seat Mem. Drvr -- Status: OK 0000
3C-Lane Change -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: Malfunction 0010
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
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
A9-Struct. Borne Sound -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine (J623-CTUB)       Labels:. 06E-907-551-CGW.clb
   Part No SW: 8K5 907 551 G    HW: 4G0 907 551 A
   Component: 3.0l V6 TFSIH07 0007 
   Revision: --H07---    CVN: 14D7E3E6
   Coding: 0A190034052600060000
   Shop #: WSC 06208 000 00000
   ASAM Dataset: EV_ECM30TFS0218K5907551G 001007
   ROD: EV_ECM30TFS021_AU48.rod
   VCID: 3A7B6DF4BDFAD346CD-806E
   VINID: 9D19545D159C0574400010471C90F2D3D5

No fault code found.
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 8K0-907-379-V2.clb
   Part No SW: 8K0 907 379 CP    HW: 8K0 907 379 CP
   Component: ESP8 quattro  H09 0020 
   Revision: --------    Serial number: --------------
   Coding: 281D1A01
   Shop #: WSC 06325 000 00000
   VCID: 0919C238A09C08DE94-805C

2 Faults Found:
01309 - Power Steering Control Module (J500)
            013 - Check DTC Memory
             Freeze Frame:
                    Fault Status: 01101101
                    Fault Priority: 6
                    Fault Frequency: 8
                    Reset counter: 242
                    Mileage: 65420 km
                    Time Indication: 0
                    Date: 2025.04.26
                    Time: 11:41:38

             Freeze Frame:
                    Hex Value: 0x0000
                    Hex Value: 0x0782
                    Hex Value: 0x000C
                    Hex Value: 0xC09A
                    Hex Value: 0x0000

00473 - Control Module for Elect. Park/Hand Brake (J540)
            013 - Check DTC Memory
             Freeze Frame:
                    Fault Status: 01101101
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 242
                    Mileage: 65527 km
                    Time Indication: 0
                    Date: 2025.04.27
                    Time: 16:21:58

             Freeze Frame:
                    Hex Value: 0x0000
                    Hex Value: 0x0082
                    Hex Value: 0x001A
                    Hex Value: 0x0297
                    Hex Value: 0x0000


-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393)       Labels:. 8K0-907-064-05.clb
   Part No SW: 8K0 907 064 KM    HW: 8K0 907 064 KM
   Component: BCM2 2.0      H15 0711 
   Revision: 00002001   
   Coding: 0F814040000000000000
   Shop #: WSC 06325 000 00000
   VCID: 0501CE088C846CBEF0-8050

   Subsystem 1 - Part No SW: 8K0 905 852 E    HW: 8K0 905 852 E
   Component: J764 ELV MLB  H40 0046
   Serial number: 3215000094137007   

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels:. 8Kx-820-043-3Z.clb
   Part No SW: 8K1 820 043 AQ    HW: 8K1 820 043 AQ
   Component: KLIMA 3 ZONEN H04 0122 
   Revision: C1000000    Serial number: 01280520152946
   Coding: 6600228000
   Shop #: WSC 06325 000 00000
   VCID: 77FDB4C0C6680E2EF2-8022

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 8K0-907-063.clb
   Part No SW: 8K0 907 063 DH    HW: 8K0 907 063 DH
   Component: BCM1 1.0      H16 0103 
   Revision: 08016001    Serial number: 00001081873102
   Coding: 26000091863CAFE0240048C300003D0D0F9C9308A2090221000008004000030100000030000000
   Shop #: WSC 06325 000 00000
   VCID: 78FFB7FCCB760156FB-802C

   Subsystem 1 - Part No SW: 8K1 955 119 B    HW: 8K1 955 119 B  Labels: 1KX-955-119.CLB
   Component: MITSUBA270415  H19 0461
   Serial number: 1504230603924       
   Coding: 004577

   Subsystem 2 - Part No SW: 8U0 955 559 C    HW: 8U0 955 559 B  Labels: 8U0-955-559.CLB
   Component: G397_RLFS  H06 0004
   Serial number: 20318862           
   Coding: 02005D

   Subsystem 3 - Part No SW: 8K0 941 531 AS    HW: 8K0 941 531 AS
   Component: E1 - LDS  H03 0031
   Serial number: 00000000000805150514

   Subsystem 4 - Part No SW: 4G0 907 410 A    HW: 4H0 907 410 A
   Component: USHL4.2  H30 0030
   Serial number: 00000000095Z0B99802C

   Subsystem 5 - Part No SW: 4H0 907 658     HW: 4H0 907 658
   Component: AQ_Hum_Sensor  H03 0003
   Serial number: 3CB8CBA7000000000001

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 8K0-959-655.clb
   Part No SW: 8K0 959 655 Q    HW: 8K0 959 655 Q
   Component: AirbagVW-AU10 H51 0812 
   Serial number: 003NDD138M88   Dataset Number: 8K0909602S  0001
   Coding: 303844354730383131304A55304C384B3053
   Shop #: WSC 06325 000 00000
   ASAM Dataset: EV_AirbaECUVWAUDI010 003114
   ROD: EV_AirbaECUVWAUDI010_003_AU48.rod
   VCID: 4B953830E2605ACE66-801E

   Seat occupied recognition:
   Subsystem 1 - Part No SW: 8K0 959 339 C    HW: 8K0 959 339 C
   Component: BF-Gewichtss.  H02 0040
   Serial number: 5810000R150000LNH0

   Crash sensor for side airbag: driver side:
   Serial number: 6334MSME510A055A9

   Front Passenger's Side Airbag Crash Sensor:
   Serial number: 6344MSME511B6948J

   Rear Side Airbag Crash Sensor (on driver's side):
   Serial number: 6352QSME16544F46M

   Passenger side rear thorax airbag crash sensor:
   Serial number: 6362QSME39583866Q

   Crash sensor for front airbag: driver side:
   Serial number: 63732SME684C3678A

   Crash sensor for front airbag: front passenger side:
   Serial number: 63832SME684C3E5CL

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:. 8K0-953-568.clb
   Part No SW: 8K0 953 568 M    HW: 8K0 953 568 M
   Component: Lenks.Modul   H04 0005 
   Revision: --------    Serial number: 90372OE5000E1
   Coding: 000016
   Shop #: WSC 06325 000 00000
   VCID: 4487130CC73E95B6A7-8010

   Component: E221 - MFL  H03 0004

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:. 8T0-920-xxx-17.clb
   Part No SW: 8K0 920 983     HW: 8K0 920 983
   Component: KOMBIINSTR.   H35 0567 
   Revision: 00100000    Serial number: 63-664M5G     
   Coding: 8BB509008301D705020000
   Shop #: WSC 06325 000 00000
   VCID: 72EB85D4AD0A6B06C5-8026

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 8T0-907-468.clb
   Part No SW: 8R0 907 468 P    HW: 8R0 907 468 D
   Component: GW-BEM 5CAN-M H11 0060 
   Revision: 1Z120030    Serial number: 3041Z155150A11
   Coding: 80C303FF00
   Shop #: WSC 06325 000 00000
   VCID: 4C973B2CEF6E5DF66F-8018

   Subsystem 1 - Part No SW: 8T0 915 181     HW: 8T0 915 181
   Component: J367-BDMHella  H03 8041
   Serial number: 9159866403         

No fault code found.

-------------------------------------------------------------------------------
Address 22: AWD (J492)       Labels: 8K0-907-163.clb
   Part No SW: 8K0 907 163 B    HW: 8K0 907 163 A
   Component: 4 Wheel Drive H15 0100 
   Serial number: 002203150001031 Dataset Number: 8K0909104D  0025
   ASAM Dataset: EV_AllWheelDiffeQSPCAN 003019
   ROD: EV_AllWheelDiffeQSPCAN.rod
   VCID: 2F6D4CA076B806EE6A-807A

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 0077 
   Revision: AA000000    Serial number: 00000145006518
   Coding: 00581B00000000000000
   Shop #: WSC 06325 000 00000
   VCID: 3B7568F0BAC0EA4ED6-806E

No fault code found.

-------------------------------------------------------------------------------
Address 3C: Lane Change (J769)       Labels:| 5Q0-907-566.clb
   Part No SW: 8T0 907 566 B    HW: 8T0 907 566 B
   Component: SWA Master    H05 0071 
   Serial number: 0369752517 Dataset Number: 8K0909535J  0029
   Coding: 010211
   Shop #: WSC 06324 000 00000
   ASAM Dataset: EV_LaneChangAssis 001020
   ROD: EV_LaneChangAssis_AU21.rod
   VCID: 3F8D1CE0A6D8F66EFA-806A

   Lane change assistance control module 2:
   Subsystem 1 - Part No SW: 8T0 907 568 B    HW: 8T0 907 568 B
   Component: SWA Slave  H05 0071
   Serial number: 0369128828         
   Coding: 010211

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:. 8K0-959-793.clb
   Part No SW: 8T0 959 793 P    HW: 8T0 959 793 G
   Component: TSG FA        H10 0305 
   Revision: --------    Serial number: --------------
   Coding: 011C13204E00410001
   Shop #: WSC 06325 000 00000
   VCID: 56A3D94421A21726C9-8002

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500)       Labels:| 8K0-909-144.clb
   Part No SW: 8K0 909 144 P    HW: 8K0 909 144 B
   Component: RCEPS         H43 0510 
   Revision: 00001000    Serial number: 0012807362 Dataset Number: 8K0909852L  0026
   Coding: 100000010001
   Shop #: WSC 06324 000 00000
   ASAM Dataset: EV_RCEPSAU48X 008018
   ROD: EV_RCEPSAU48X_008.rod
   VCID: 3E7361E4A1D2FF66F1-806A

2 Faults Found:
7341600 - Position Sensor for Motor
          C10AD 29 [00001000] - Signal Implausible
          [New feature! Extended UDS fault detail is only supported by current gen. interfaces]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 27
                    Mileage: 65527 km
                    Date: 2025.04.26
                    Time: 16:26:54

                    Write only channel

7341570 - Position Sensor for Motor
          C10AD 29 [10001001] - Signal Implausible
          [New feature! Extended UDS fault detail is only supported by current gen. interfaces]
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 65418 km
                    Date: 2025.04.26
                    Time: 11:17:17

                    Write only channel


-------------------------------------------------------------------------------
Address 46: Central Conv. (J393)       Labels:. 8K0-907-064-46.clb
   Part No SW: 8K0 907 064 KM    HW: 8K0 907 064 KM
   Component: BCM2 2.0      H15 0711 
   Revision: 00002001    Serial number: 0368488565   
   Coding: 0106023A00FA404580B0013200000000
   Shop #: WSC 06324 000 00000
   VCID: 0501CE088C846CBEF0-8050

   Subsystem 1 - Part No SW: 8K0 959 719 B    HW: 8K0 959 719
   Component: GTO BF  H01 0080
   Serial number: 00000000000000997965

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

   Subsystem 3 - Part No SW: 8K0 959 591 C    HW: 8K0 959 591
   Component: J245 PS051  H08 0043

No fault code found.

-------------------------------------------------------------------------------
Address 47: Sound System (J525)       Labels:. 8T0-035-223-BOM.clb
   Part No SW: 8T1 035 223 A    HW: 8T1 035 223 A
   Component: DSP Prem      H05 0030 
   Revision: 00005001    Serial number: 94813044491806
   VCID: 2D5156A874B474FE58-8078

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:. 8K0-959-792.clb
   Part No SW: 8T0 959 792 P    HW: 8T0 959 792 G
   Component: TSG BF        H10 0305 
   Revision: --------    Serial number: --------------
   Coding: 011C13204E00410001
   Shop #: WSC 06325 000 00000
   VCID: 55A1DE483CA41C3EC0-8000

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake (----)       Labels: 8K0-907-801-V2.clb
   Part No SW: 8K0 907 801 N    HW: 8K0 907 801 J
   Component: EPB-4         H02 0005 
   Revision: --------    Serial number: 10000000545880
   ASAM Dataset: EV_ParkiBrake 001028
   ROD: EV_ParkiBrake_AU48.rod
   VCID: 3A7B6DF4BDFAD346CD-806E

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (R)       Labels:. 4F0-035-0xx-56.clb
   Part No SW: 4G0 035 082 G    HW: 4G0 035 082
   Component: Radio U SIRIU H66 0133 
   Revision: AB001007    Serial number: 156E50F8269933
   Coding: 020007010000000001
   Shop #: WSC 06325 000 00000
   VCID: 2447B38C277EB5B687-8070

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:. 4E0-035-6xx-5F.clb
   Part No SW: 8R1 035 746 H    HW: 8R1 035 746 G
   Component: H-BNT-NA      H43 0937 
   Revision: --------    Serial number: 523F00FB005776
   Coding: 110200000206A1EF55028B5E00000403140000000000000000
   Shop #: WSC 06325 000 00000
   VCID: 3C776BECBFCEED76DF-8068

   Subsystem 1 - Part No: 8R0 060 884 CS
   Component: NAR 2015  1201

   Subsystem 2 - Part No SW: 8R0 919 604 A    HW: 8R0 919 604 A
   Component: DU7 High  H42 0104
   Serial number: A130EV0F3364870     

   Subsystem 3 - Part No SW: 8T0 919 611 L    HW: 8T0 919 611 C
   Component: E0380 Bedient  H02 0030
   Serial number: 00000002249970     

   Subsystem 4 - Part No: 8R0 060 961 G
   Component: CD-Database  6208

No fault code found.

-------------------------------------------------------------------------------
Address 62: Door, Rear Left (J388)       Labels:. 8K0-959-795.clb
   Part No SW: 8T0 959 795 Q    HW: 8T0 959 795 H
   Component: TSG HL        H08 0305 
   Revision: --------    Serial number: --------------
   Coding: 010C13204000210001
   Shop #: WSC 06325 000 00000
   VCID: 59B9D27850BC385EE4-800C

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: --H09---    Serial number: 525PA8-JA391UD
   Coding: 1000006
   Shop #: WSC 06325 000 00000
   VCID: 387F77FC4BF6C1563B-806C

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right (J389)       Labels:. 8K0-959-794.clb
   Part No SW: 8T0 959 795 Q    HW: 8T0 959 795 H
   Component: TSG HR        H08 0305 
   Revision: --------    Serial number: --------------
   Coding: 010C13204000210001
   Shop #: WSC 06325 000 00000
   VCID: 59B9D27850BC385EE4-800C

No fault code found.

-------------------------------------------------------------------------------
Address A9: Struct. Borne Sound (J869)       Labels: 4H0-907-159.clb
   Part No SW: 8K0 907 159     HW: 4H0 907 159 A
   Component: SAS-GEN 2     H06 0006 
   Serial number: 150514201908
   ASAM Dataset: EV_SoundActuaGen2AU64X 003010
   ROD: EV_SoundActuaGen2AU64X_003_VW37.rod
   VCID: 72EB85D4A50A6B06C5-8026

No fault code found.

End-------------------------(Elapsed Time: 04:12)--------------------------
 
   #2  

EuroX

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Water in the rack means donezo!! I mean if you really want to take it apart into little itty bitty pieces and try to clean it up sure but the question is if the risk is worth the reward? I doubt it. Purchase a good known used rack and call it a day. Then have someone adapt the rack for you or swap the J500 module into the used rack and call it a day as long as the module is not water damaged.

Everytime before the rack boots up its does a self test. if criteria are not met steering is stiff. in this case I would say water damage to sensor that reads position of the motor in the rack is your issue.
 
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