ABS/TPMS warning lights came on

[Crasher]

Yes, it is based on wheel speed from the ABS ECU, I can’t imagine the temp sender having an influence but it could be digitally linked to take into account air density changes.

[KW@611018]

Can it confirmed where TPMS is re my Audi ?

Is fitted in the ABS module itself or elsewhere?

I suspect a dodgy wire. So a relevant wiring diagram for my Audi would be helpful. I have a diagram for 2011 onwards but I feel something is missing.

Thanks

Kenny

[Crasher]

It is a software routine in the ABS ECU, you need to study the wheel speeds in measuring blocks. Which fault codes are you getting now?

[KW@611018]

Still getting the same fault codes

1324 which is my awd module
1325 TPMS no signal / comms

I checked the fuses all fine, carried out continuity tests on front sensor wiring seemed fine.

But I need a full dry day to get to the ABS plug to measure the voltages and resistances over all the speed sensor wires.

Kenny

[Crasher]

Thinking back, we had this with a TT2 and a Gen4 Haldex, it was the Haldex ECU at fault, water damage. Yours could be Haldex 4 or 5, can you post a full car VCDS scan?

[KW@611018]

Thanks Crasher,

Mine is gen 5, suspect water damage. It has not been working since I got the vehicle. Module number OAY 907 554J got this from the unit on the car dated 17/11/2014.

In ABS module on VCDS it has measurments, what does it cover ? I'm thinking about the magnetic strip on the wheel hub, could this be the problem ?

I'm going to drive the car with VCDS attached to measure the wheel speed sensors.

Address 03: ABS Brakes (5N0 614 109 BA)

09:20:55 Group 001: Current Wheel Speed
17.0 km/h Speed Sensor Front Left (G47)
17.0 km/h Speed Sensor Front Right (G45)
17.0 km/h Speed Sensor Rear Left (G46)
17.0 km/h Speed Sensor Rear Right (G44)

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


Address 03: ABS Brakes (5N0 614 109 BA)

09:23:25 Group 001: Current Wheel Speed
78.0 km/h Speed Sensor Front Left (G47)
78.0 km/h Speed Sensor Front Right (G45)
77.0 km/h Speed Sensor Rear Left (G46)
77.0 km/h Speed Sensor Rear Right (G44)

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

Live data I took today via measurement block, from this the wiring from sensors are working. So what is causing the warning lights to come on ?

Any thoughts please,

Further to the above removed AWD module and water ingress found. Hence it is NO signal or comms.

Kenny

[KW@611018]

Further to the above car taken for a drive with son who monitored the WSS in the measuring block and saw no anomalies.

What is going on ?

Attached latest autoscan

Monday,16,June,2025,12:37:23:14471
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 25.3.1.2 (x64)  HEX-V2 CB: 0.4671.4
Data version: 20250604 DS365.0
Ross-Tech: Home
VIN: WAUZZZ8U5ER146533   License Plate: KX64NDZ
Mileage: 148750km-92428mi   Repair Order: 

Chassis Type: 8U-AU21 (8U0)
Scan: 01 02 03 08 09 10 15 16 17 19 22 25 42 44 46 52 53 55 5F 62
          72

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: Malfunction 0010
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
10-Park/Steer Assist -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
22-AWD -- Status: Cannot be reached 1100
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
55-Headlight Range -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CFGC)       Labels:. 03L-906-018-CFF.clb
   Part No SW: 03L 906 018 PH    HW: 03L 906 018 ES
   Component: R4 2.0l TDI   H28 9979  
   Revision: 41H28---    Serial number:                CVN: F3FD3413
   Coding: 00250012043701080000
   Shop #: WSC 54992 002 1048576
   ASAM Dataset: EV_ECM20TDI01103L906018PH 003009
   ROD: EV_ECM20TDI01103L906018PH.rod
   VCID: 7F5B10CF377EF482F63-802A
   VINID: 9D196AAAA2251558811061430C440903E9

1 Fault Found:
5286 - Throttle Position Sensor (G69) 
          P0121 00 [01100000] - Implausible Signal
          Intermittent - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 148596 km
                    Date: 2025.06.14
                    Time: 22:34:58

                    Engine speed: 546.00 /min
                    Normed load value: 100.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 73 °C
                    Intake air temperature: 16 °C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 13.700 V
                    Unlearning counter according OBD: 39
                    Air mass: actual value (mg/stroke): 473.0 mg/stroke
                    Throttle valve adapter: specified value: 0.00 %
                    Throttle valve adapter: actual value: 1.42 %
                    Throttle valve adapter: offset closed: -12.05 %
                    Throttle valve adapter: status-Bits 0-7: 0
                    Throttle valve adapter: status-Bits 0-7: 55
                    Throttle valve adapter: status-Bits 0-7: 2
                    Throttle valve adapter: status-Bits 0-7: 8
                    Throttle valve adapter: uncond voltage actual value: 992.0 mV

Readiness: 0 0 0 0 0 

-------------------------------------------------------------------------------
Address 02: Auto Trans (J743)       Labels:. 0BH-927-711.clb
   Part No SW: 0BH 300 012 A    HW: 0BH 927 711 C
   Component: DSG DQ500-7A  H08 2233  
   Revision: 00H08V01    CVN: 4F80FCDC
   Coding: 0014
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_TCMDQ500021 001001
   ROD: EV_TCMDQ500021.rod
   VCID: 211FF6B7E14A6272A07-8074

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 5N0-614-109-C6.clb
   Part No SW: 5N0 614 109 BA    HW: 5N0 614 109 BA
   Component: J104   C6 450M VDB7 0160  
   Revision: --H07---    Serial number: 00000008571821
   Coding: 0056717
   Shop #: WSC 00049 770 00151
   VCID: 6B83D49F5F8678224AB-803E

2 Faults Found:
01324 - Control Module for All Wheel Drive (J492) 
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 3
                    Fault Frequency: 10
                    Reset counter: 183
                    Mileage: 148584 km
                    Time Indication: 0
                    Date: 2025.06.14
                    Time: 14:03:11

             Freeze Frame:
                    Speed: 0.0 km/h
                    Hex Value: 0x0000
                    Bin. Bits: 00000000 00000000
                    Voltage: 12.00 V
                    Bin. Bits: 00011111
                    Count: 256
                    Hex Value: 0x0000

01325 - Control Module for Tire Pressure Monitoring (J502) 
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 3
                    Fault Frequency: 10
                    Reset counter: 183
                    Mileage: 148584 km
                    Time Indication: 0
                    Date: 2025.06.14
                    Time: 14:03:21

             Freeze Frame:
                    Speed: 0.0 km/h
                    Hex Value: 0x0000
                    Bin. Bits: 00000000 00000000
                    Voltage: 12.00 V
                    Bin. Bits: 00011111
                    Count: 191
                    Hex Value: 0x0000


-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 8P0-820-043.lbl
   Part No SW: 8U0 820 043 D    HW: 8U0 820 043 D
   Component: E87  Klimavoll      0100  
   Revision: 00H04000    Serial number: 8U0820043D
   Shop #: WSC 00000 000 00000
   VCID: 323D09FBB82CE9EA49D-8066

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 8X0-907-063.clb
   Part No SW: 8X0 907 063 AB    HW: 8X0 907 063 AB
   Component: BCM PQ35  M   113 0817  
   Revision: AB113817    
   Coding: 0E000A2CA805F1C0201841C00104094C43FF84AA206F912BE400878400C1
   Shop #: WSC 00049 770 00099
   VCID: 7CA1E7C326E8EF9AD31-8028

   Subsystem 1 - Part No SW: 8U2 955 119     HW: 8U2 955 119   Labels: 1KX-955-119.CLB
   Component: WWS316 141026  H37 0090 
   Serial number:         141105212039
   Coding: 0047F7

   Subsystem 2 - Part No SW: 8U0 955 559 B    HW: 8U0 955 559 B  Labels: 8U0-955-559.CLB
   Component: G397_RLFS  H06 0002 
   Serial number: 23427357            
   Coding: 02006E

   Subsystem 3 - Part No: 8X0 951 177 
   Component: DWA-Sensor H0  H01 0020 

   Subsystem 4 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HO  H05 1501 

No fault code found.

-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels:| 8X0-919-475.clb
   Part No SW: 8X0 919 475 AD    HW: 4H0 919 475 AG
   Component: PARKHILFE 8K  H01 0070  
   Revision: 11001001    Serial number: 61031431600371
   Coding: 08C305
   Shop #: WSC 00049 770 00117
   ASAM Dataset: EV_EPHVA18AU21X0000 003008
   ROD: EV_EPHVA18AU21X0000_003.rod
   VCID: 08498B1362B0B33AC79-805C

1 Fault Found:
1112082 - Front Left Center Parking Aid Sensor 
          B10F8 12 [00001000] - Short to Plus
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 161
                    Mileage: 147659 km
                    Date: 2025.06.01
                    Time: 15:22:43


-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 8X0-959-655.clb
   Part No SW: 8U0 959 655 B    HW: 8U0 959 655 B
   Component: AirbagVW-AU10 H09 0520  
   Serial number: 003LRR09RPHR   Dataset Number: 8U0909602A  0009
   Coding: 30393132313030303030554A305238553053
   Shop #: WSC 00049 770 00117
   ASAM Dataset: EV_AirbaAU10SMEAU316 001005
   ROD: EV_AirbaAU10SMEAU316_001.rod
   VCID: 46D5452B2824654AF55-8012

   Crash sensor for side airbag: driver side: 
   Subsystem 1 - Part No SW: 5K0 959 351 A    HW: 5K0 959 351 A
   Component: S.Sens.Fahr.V  H02 ---- 
   Serial number: 3496KSME12033C33ZZZN

   Crash sensor for side airbag: passenger side: 
   Subsystem 2 - Part No SW: 5K0 959 351 A    HW: 5K0 959 351 A
   Component: S.Sens.Beif.V  H02 ---- 
   Serial number: 3506KSME13213C33ZZZG

   Rear Side Airbag Crash Sensor (on driver's side): 
   Subsystem 3 - Part No SW: 5K0 959 351 A    HW: 5K0 959 351 A
   Component: S.Sens.Fahr.H  H02 ---- 
   Serial number: 3516KSME502A2B33ZZZP

   Passenger side rear thorax airbag crash sensor: 
   Subsystem 4 - Part No SW: 5K0 959 351 A    HW: 5K0 959 351 A
   Component: S.Sens.Beif.H  H02 ---- 
   Serial number: 3526KSME73041533ZZZG

   Crash sensor for front airbag: driver side: 
   Subsystem 5 - Part No SW: 8U0 959 651     HW: 8U0 959 651 
   Component: F.Sens.Fahr  H02 ---- 
   Serial number: 3555USME05292D31ZZZ.

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:| 8X0-953-569.clb
   Part No SW: 8X0 953 521 D    HW: 5K0 953 569 AE
   Component: LENKS.MODUL   016 0162  
   Revision: FF010018    Serial number: 20141115201145
   Coding: 1894204000
   Shop #: WSC 00049 770 00117
   ASAM Dataset: EV_SMLSNGVOLWSXS A01004
   ROD: EV_SMLSNGVOLWS.rod
   VCID: 3D272AC77DF22692A4F-8068

   Multifunction steering wheel control module: 
   Subsystem 1 - Part No SW: 8U0 951 528 H    HW: 8U0 951 528 H
   Component: E221 - MFL  H08 0010 
   Serial number: 08 11 2014  E0024653

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 8X0-920-KOM-V1.clb-SRI1
   Part No SW: 8U0 920 980 E    HW: 8U0 920 980 E
   Component: KOMBI_MEDIUM  H02 0340  
   Serial number: 00000000000000
   Coding: 42CF01
   Shop #: WSC 00049 770 00117
   ASAM Dataset: EV_Kombi_UDS_VDD_AU10 A04399
   ROD: EV_Kombi_UDS_VDD_AU10.rod
   VCID: 3E252DCB70F43D8ABD5-806A

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 8X0-907-468.clb
   Part No SW: 8U0 907 468 AC    HW: 8U0 907 468 G
   Component: GAT 4CAN 1L M H13 0074  
   Revision: 1P140041    Serial number: 4141P14B080442
   Coding: FBCF1A5A000100610353
   Shop #: WSC 00049 770 00117
   VCID: 03539C3F5B16906292B-8056

   Subsystem 1 - Part No SW: 1K0 915 181 H    HW: 1K0 915 181 A
   Component: J367-BDM  H07 0180 
   Serial number: 41317M13361491092650

   Subsystem 2 - Part No SW: 8K0 959 663     HW: 8K0 959 663 
   Component: J532_DCDCStab  H17 0042 
   Serial number: 14321002703021200181

1 Fault Found:
01324 - Control Module for All Wheel Drive (J492) 
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 181
                    Mileage: 148584 km
                    Time Indication: 0
                    Date: 2025.06.14
                    Time: 14:04:03

             Freeze Frame:
                    Bin. Bits:    10111
                    Voltage: 12.20 V
                    Count: 6
                    Bin. Bits:    10000
                    Time: 25.40 s


-------------------------------------------------------------------------------
Address 22: AWD
Cannot be reached

-------------------------------------------------------------------------------
Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
   Part No SW: 8U0 920 980 E    HW: 8U0 920 980 E
   Component: IMMO          H02 0340  
   Serial number:               
   Coding: 000002
   Shop #: WSC 00049 770 00117
   ASAM Dataset: EV_Immo_UDS_VDD_AU10 A04113
   ROD: EV_Immo_UDS_VDD_AU10.rod
   VCID: 3E252DCB70F43D8ABD5-806A

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:. 8X0-959-793.clb
   Part No SW: 8X0 959 793 H    HW: 8X0 959 793 H
   Component: TSG FA        H11 0415  
   Revision: --------    Serial number: --------------
   Coding: 011806200001000000
   Shop #: WSC 00049 770 00151
   VCID: 52FD697BD4ECC9EA69D-8006

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1K0-909-14x-GEN3.clb
   Part No: 5N0 909 144 R
   Component: EPS_ZFLS Kl. 296    3501  
   Revision: 00H22000    
   Shop #: WSC 00049 770 00151
   VCID: 40D9533306804B7ACF9-8014

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:. 8X0-959-792.clb
   Part No SW: 8X0 959 792 H    HW: 8X0 959 792 H
   Component: TSG BF        H11 0415  
   Revision: --------    Serial number: --------------
   Coding: 011806200001000000
   Shop #: WSC 00049 770 00151
   VCID: 51FF6677D1EAB2F2507-8004

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake        Labels: 3AA-907-801.clb
   Part No SW: 3AA 907 801 J    HW: 3AA 907 801 J
   Component: J540 EPB4  VW-63206 0012  
   Revision:   H19       Serial number: 00000000377958
   Coding: 0025166
   Shop #: WSC 00049 770 00151
   VCID: 38293BD35E5003BA779-806C

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range (J431)       Labels:| 8X0-907-357.clb
   Part No SW: 8X0 907 357 C    HW: 8X0 907 357 B
   Component: ****LWR12**** H02 0020  
   Serial number: 141116-0001-012
   Coding: 1157A41010002500
   Shop #: WSC 00049 770 00151
   ASAM Dataset: EV_HeadlRegulBasic 005001
   ROD: EV_HeadlRegulBasic_AU21.rod
   VCID: 42DD593B040C596AD9D-8016

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels: None
   Part No SW: 8U0 035 192 E    HW: 8U0 035 192 C
   Component: RMC Nav Plus  H55 0801  
   Coding: 01010600024153070823020103010000000000
   Shop #: WSC 00049 770 00117
   VCID: 363535EB5844F5CA655-8062

   Subsystem 1 - Part No: 8X0 919 884 H
   Component: P28-50-14.06  0001 

   Subsystem 2 - Part No SW: 8U0 919 603 A    HW: 8U0 919 603 A
   Component: DUBasic AU316  H42 0018 
   Serial number: AUZ8ZDEM502AD8X     

No fault code found.

-------------------------------------------------------------------------------
Address 62: Door, Rear Left (J388)       Labels:. 8X0-959-795.clb
   Part No SW: 8X0 959 795 C    HW: 8X0 959 795 C
   Component: TSG HL        H08 0415  
   Revision: --------    Serial number: --------------
   Coding: 010006200001000000
   Shop #: WSC 00049 770 00151
   VCID: 4FFB600FC7DEA402463-801A

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right (J389)       Labels:. 8X0-959-795.clb
   Part No SW: 8X0 959 795 C    HW: 8X0 959 795 C
   Component: TSG HR        H08 0415  
   Revision: --------    Serial number: --------------
   Coding: 010006200001000000
   Shop #: WSC 00049 770 00151
   VCID: 4FFB600FC7DEA402463-801A

No fault code found.

End----------(Elapsed Time: 01:39, VBatt start/end: 11.8V/12.1V)-----------
------------------------------5 Faults Found-------------------------------